The S02 emission of coking industry and emission reduction potential
炼焦化学工业污染物排放标准gb 16171-2012
炼焦化学工业污染物排放标准gb 16171-2012GB 16171-2012Coking chemical industry pollutant emission standard发布日期：2012-08-31实施日期：2012-12-31全文页数：32 ForewordThis Standard was drafted in accordance with the rules given in GB 1.1-2009.This Standard was proposed by China Petroleum and Chemical Industry Federation.This Standard shall be under the jurisdiction of the National Technical Committee for Standardization of Pollution Control of Petroleum and Chemical Industries (SAC/TC 206).The drafting organizations of this Standard. China Petroleum and Chemical Industry Environmental Protection Association, China National Petroleum Corporation, China Petrochemical Corporation, China National Offshore Oil Corporation, and China National Petroleum and Chemical Industry Environmental Protection Technology Research Institute.The main drafters of this Standard. Zhang Yufeng, Li Yulong, Li Jie, Li Peng, Li Li, Liu Xing, Zhang Yuming, Zhang Yiming, Zhang Shun, Zeng Zhi, Li Hui, Li Jie, Li Xianping, Liu Da, Zhao Yuxiang, Zhang Wenjie, Zhang Jun, Tang Hui, Wang Wei, WangYong, Wang Hongwei, Wang Lei, Wang Hongmei, and Zhang Yuping.Coking Chemical Industry Pollutant Emission Standard1 ScopeThis Standard specifies the emission limits of pollutants for coking chemical industry.This Standard is applicable to the pollutant emission control of integrated coking chemical industry (including coking, coal chemical, and coke oven gas chemical industry).2 Normative ReferencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.GB 3095 Air Quality StandardGB/T 16157 Atmospheric Pollution Control Technology - Determination of Pollutant Emission Concentration and Mass EmissionGB/T 18457 Atmospheric Pollution Control Technology - Determination of Dust Concentration3 Terms and DefinitionsThe following terms and definitions apply to this document.3.1Integrated coking chemical industryIndustry that integrates coking, coal chemical, and coke oven gas chemical industry.3.2Coking chemical industryIndustry that integrates coking, coal chemical, and coke oven gas chemical industry.4 Emission Limits4.1The emission limits of pollutants for coking chemical industry shall comply with the requirements of Table 1.Table 1 -- Emission Limits of Pollutants for Coking Chemical IndustryPollutant Emission LimitParticulate matter (PM) 10 mg/m3Sulfur dioxide (SO2) 50 mg/m3Nitrogen oxides (NOx) 50 mg/m3Carbon monoxide (CO) 200 mg/m3Hydrogen sulfide (H2S) 20 mg/m34.2The emission limits of pollutants for coking chemical industry shall comply with the requirements of Table 2.Table 2 -- Emission Limits of Pollutants for Coking Chemical IndustryPollutant Emission LimitParticulate matter (PM) 10 mg/m3Sulfur dioxide (SO2) 50 mg/m3Nitrogen oxides (NOx) 50 mg/m3Carbon monoxide (CO) 200 mg/m3Hydrogen sulfide (H2S) 20 mg/m3Ammonia (NH3) 50 mg/m3Benzene (C6H6) 0.5 mg/m3Toluene (C7H8) 0.5 mg/m3Xylene (C8H10) 0.5 mg/m34.3The emission limits of pollutants for coking chemical industry shall comply with the requirements of Table 3.Table 3 -- Emission Limits of Pollutants for Coking Chemical IndustryPollutant Emission LimitParticulate matter (PM) 10 mg/m3Sulfur dioxide (SO2) 50 mg/m3Nitrogen oxides (NOx) 50 mg/m3Carbon monoxide (CO) 200 mg/m3Hydrogen sulfide (H2S) 20 mg/m3Ammonia (NH3) 50 mg/m3Benzene (C6H。
二氧化碳转化为合成气及高附加值产品的研究进展
化工进展Chemical Industry and Engineering Progress2022年第41卷第3期二氧化碳转化为合成气及高附加值产品的研究进展邵斌，孙哲毅，章云，潘冯弘康，赵开庆，胡军，刘洪来（华东理工大学化学与分子工程学院，上海200237）摘要：由于二氧化碳（CO 2）过度排放导致全球变暖日益严峻，发展零碳技术已成为人类社会面向可持续发展的战略选择。
将CO 2捕集并转化为高附加值化学和能源产品，可以优化化石能源为主体的能源结构、有效缓解环境问题，并实现碳资源的充分利用，是一项可以大规模实现低碳减排的技术。
本文重点介绍了CO 2高效利用新途径，通过二氧化碳-合成气-高附加值化学品的产品工艺路线，实现CO 2的资源化利用。
对比综述了热催化法、电催化法和光催化法高效转化合成气的最新进展，总结了热、电、光催化制备合成气过程中催化剂的设计原理和方法以及目前工业化应用前景；简单概述了合成气作为重要平台分子，进一步通过费托合成路线或接力催化路线转化为低碳烯烃和液态燃料或芳烃等化学品过程中催化剂设计研究进展。
最后，总结了大规模工业化CO 2转化为合成气及高附加值产品过程催化剂设计和反应器优化的技术难题，并对未来CO 2高效转化利用方向进行了展望。
同时指出目前各技术还普遍存在反应机理不清晰、催化剂成本高以及缺乏大规模合成等问题，未来开发出高效、高活性、低成本且稳定的催化剂是各技术推广应用的关键。
关键词：二氧化碳；合成气；催化机理；催化剂；工业应用中图分类号：TQ211文献标志码：A文章编号：1000-6613（2022）03-1136-16Recent progresses in CO 2to syngas and high value-added productsSHAO Bin ，SUN Zheyi ，ZHANG Yun ，PAN Fenghongkang ，ZHAO Kaiqing ，HU Jun ，LIU Honglai(School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China)Abstract:The global warming caused by excess carbon dioxide (CO 2)emission has been a worldwide focus.The development of carbon neutralization technologies is a strategic choice for the sustainability of human society.CO 2capture and conversion to high value-added chemicals is an ultimate technology for the goal of carbon neutralization,which can optimize the fossil fuel-dominated energy structure,effectively alleviate environmental problems,and achieve carbon recycling.This paper focuses on the efficient CO 2utilization by the route of CO 2-syngas-high value-added chemicals.As an important intermedia product,syngas is the most feasible for CO 2conversion and can be further transformed into value-added chemicals.Recent progresses in three CO 2to syngas technologies of thermo-catalysis,electrocatalysis and photocatalysis are reviewed,including the mechanism,catalysts design strategies,and the current industrial application prospects.Moreover,the conversion of syngas to light olefins and aromatics through the Fischer-Tropsch synthesis and relay catalytic routes are also reviewed.By analyzing and comparing the key technologies,特约评述DOI ：10.16085/j.issn.1000-6613.2021-1909收稿日期：2021-09-07；修改稿日期：2021-10-19。
低碳经济专八作文英语
低碳经济专八作文英语Low-Carbon EconomyIn recent years, the concept of a low-carbon economy has gained significant attention worldwide as a means to address the pressing issue of climate change. A low-carbon economy is an economic system that aims to minimize the release of greenhouse gas emissions, particularly carbon dioxide, through the adoption of sustainable practices and the development of clean technologies. This approach not only benefits the environment but also presents opportunities for economic growth and development.One of the primary drivers of the low-carbon economy is the increasing awareness of the detrimental effects of human activities on the environment. The burning of fossil fuels for energy production, transportation, and industrial processes has led to a significant rise in greenhouse gas emissions, contributing to global warming and climate change. The impacts of these changes are becoming increasingly evident, with rising sea levels, more frequent and severe natural disasters, and disruptions to ecosystems and biodiversity.In response to these challenges, governments, businesses, and individuals have begun to take action to transition towards a low-carbon economy. This transition involves a multifaceted approach, including the adoption of renewable energy sources, the improvement of energy efficiency in various sectors, the development of sustainable transportation systems, and the implementation of circular economy principles that prioritize the reuse and recycling of resources.One of the key components of the low-carbon economy is the expansion of renewable energy sources, such as solar, wind, hydropower, and geothermal energy. These clean energy technologies not only reduce greenhouse gas emissions but also provide a reliable and sustainable source of power. Governments around the world have implemented policies and incentives to encourage the adoption of renewable energy, such as feed-in tariffs, tax credits, and renewable energy portfolio standards.In addition to the energy sector, the transition to a low-carbon economy also involves the transformation of other industries, such as transportation, manufacturing, and agriculture. Advancements in electric vehicles, public transportation, and sustainable logistics have the potential to significantly reduce emissions from the transportation sector. Similarly, the adoption of energy-efficient technologies, the implementation of circular economy principles, andthe development of sustainable manufacturing processes can lead to significant reductions in emissions from the industrial sector.The agricultural sector also plays a crucial role in the low-carbon economy. Sustainable farming practices, such as the use of organic fertilizers, the promotion of soil health, and the integration of renewable energy sources, can help to reduce greenhouse gas emissions while also improving food security and supporting local communities.The transition to a low-carbon economy presents both challenges and opportunities. On the one hand, it requires significant investments in new technologies, infrastructure, and training, which can be financially and logistically challenging. On the other hand, the low-carbon economy offers numerous economic and social benefits, including the creation of new jobs in the renewable energy and sustainable technology sectors, the reduction of energy costs for businesses and households, and the improvement of public health through the reduction of air and water pollution.Governments around the world have recognized the importance of the low-carbon economy and have implemented various policies and initiatives to support its development. The Paris Agreement, a global climate accord adopted in 2015, has been a driving force in this regard, with countries committing to take action to reducegreenhouse gas emissions and limit global temperature rise.At the individual level, consumers can also play a significant role in the transition to a low-carbon economy by making sustainable choices in their daily lives, such as reducing energy consumption, adopting renewable energy sources, and supporting businesses that prioritize environmental sustainability.In conclusion, the low-carbon economy represents a crucial step towards a more sustainable and resilient future. By embracing the principles of clean energy, sustainable practices, and circular economy, we can work together to mitigate the effects of climate change and create a more prosperous and equitable world for generations to come.。
西华师范大学学士学位英语考试真题
西华师范大学学士学位英语考试真题West China Normal University Bachelor Degree English ExamSection I: Reading Comprehension (40 points)Directions: There are 4 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. You should decide on the best choice and mark the corresponding letter on the Answer Sheet.Passage 1Questions 1 to 5 are based on the following passage:Our product engineers are constantly striving to improve the performance and reliability of our products, so that our customers can have the best possible experience. By researching the latest technologies and trends in the industry, we are able to develop innovative solutions to meet the changing needs of our customers. One of our recent breakthroughs is the development of a new energy-saving technology that reduces energy consumption by 30%. This not only benefits our customers by saving them money on their utility bills, but also helps to protect the environment by reducing carbon emissions.Questions:1. What is the main goal of the product engineers at our company?A. To increase revenueB. To improve customer satisfactionC. To win industry awardsD. To reduce energy consumption2. How do the product engineers stay informed about the latest technologies and trends in the industry?A. By reading industry publicationsB. By attending trade shows and conferencesC. By conducting market researchD. All of the above3. What is one of the recent breakthroughs mentioned in the passage?A. A new marketing campaignB. A new energy-saving technologyC. A new office buildingD. A new CEO4. How does the new energy-saving technology benefit our customers?A. By reducing carbon emissionsB. By improving product performanceC. By saving them money on utility billsD. All of the above5. Why is it important to develop innovative solutions to meet the changing needs of our customers?A. To win industry awardsB. To increase revenueC. To protect the environmentD. To reduce energy consumptionPassage 2Questions 6 to 10 are based on the following passage:The history of cinema is a fascinating subject, full of drama, romance, and suspense. From the early days of silent films to the latest blockbusters, movies have played an importantrole in shaping our culture and society. Some of the greatest filmmakers of all time have left their mark on the industry, creating timeless classics that continue to inspire and entertain audiences around the world. Whether you prefer comedies, dramas, action films, or documentaries, there is something for everyone to enjoy at the cinema.Questions:6. What is the main subject of the passage?A. The history of cinemaB. The latest blockbustersC. The greatest filmmakers of all timeD. The role of movies in shaping culture and society7. What role have movies played in shaping culture and society?A. A minor roleB. A negative roleC. A positive roleD. No role at all8. What do some of the greatest filmmakers of all time have in common?A. They all prefer comediesB. They all create action filmsC. They have all left their mark on the industryD. They only make documentaries9. What type of film appeals to everyone?A. ComediesB. DramasC. Action filmsD. Documentaries10. The passage suggests that movies have the power to:A. Inspire and entertain audiencesB. Influence people in a negative wayC. Create drama and suspenseD. None of the abovePassage 3Questions 11 to 15 are based on the following passage:Social media has become an integral part of our daily lives, allowing us to connect with friends and family, share our thoughts and experiences, and stay informed about current events. However, it is important to be mindful of the potential dangers of social media, such as cyberbullying, privacy concerns, and misinformation. By being aware of these risks and taking steps to protect ourselves and our loved ones, we can continue to enjoy the benefits of social media while staying safe and secure.Questions:11. What is the main subject of the passage?A. The benefits of social mediaB. The dangers of social mediaC. How to connect with friends and familyD. The role of current events in social media12. What are some potential dangers of social media?A. Cyberbullying and privacy concernsB. Sharing thoughts and experiencesC. Connecting with friends and familyD. Misinformation and current events13. How can we protect ourselves and our loved ones from the dangers of social media?A. By ignoring the risksB. By being aware of the risks and taking steps to protect ourselvesC. By avoiding social media altogetherD. By sharing personal information online14. What is one of the benefits of social media mentioned in the passage?A. CyberbullyingB. Privacy concernsC. Connecting with friends and familyD. Misinformation15. According to the passage, how can we continue to enjoy the benefits of social media while staying safe and secure?A. By ignoring the risksB. By being aware of the risks and taking steps to protect ourselvesC. By sharing personal information onlineD. By avoiding social media altogetherPassage 4Questions 16 to 20 are based on the following passage:Climate change is one of the most pressing issues facing our planet today. The burning of fossil fuels, deforestation, and industrialization have all contributed to the increase in greenhouse gas emissions, leading to rising global temperatures and more extreme weather patterns. It is crucial that we take action now to reduce our carbon footprint and protect the environment for future generations. By investing in renewable energy sources, reducing waste, and promoting sustainable practices, we can make a positive impact on the planet and create a more sustainable future for all.Questions:16. What is one of the most pressing issues facing our planet today?A. DeforestationB. IndustrializationC. Climate changeD. Rising global temperatures17. What has contributed to the increase in greenhouse gas emissions?A. The burning of fossil fuels, deforestation, and industrializationB. Investing in renewable energy sourcesC. Reducing wasteD. Promoting sustainable practices18. Why is it crucial that we take action now to reduce our carbon footprint?A. To create more extreme weather patternsB. To protect the environment for future generationsC. To increase greenhouse gas emissionsD. To invest in renewable energy sources19. What can we do to make a positive impact on the planet and create a more sustainable future?A. Invest in renewable energy sourcesB. Reducing wasteC. Promoting sustainable practicesD. All of the above20. According to the passage, why is it important to reduce our carbon footprint?A. To create more extreme weather patternsB. To protect the environment for future generationsC. To increase greenhouse gas emissionsD. To invest in renewable energy sourcesSection II: Usage (20 points)Directions: There are 10 incomplete sentences in this section. For each of them there are four choices marked A, B, C, and D. Choose the one that best completes the sentence and mark your answer on the Answer Sheet.21. I have __________ my friend's birthday party tomorrow.A. forgottenB. forgetD. forgetting22. She __________ all day yesterday, so she's very tired today.A. was studyingB. studiedC. studyD. has studied23. If I __________ you were coming, I would have baked a cake.A. knewB. had knownC. knowD. knowing24. He asked me __________ I had seen his keys.A. whenB. thatC. if25. The book was so __________ that I couldn't put it down.A. interestingB. interestedC. interestD. interestedly26. If you __________ too fast, you'll get a speeding ticket.A. driveB. droveC. will driveD. driving27. My grandmother __________ when she heard the news.A. is cryingB. was cryingC. criedD. will cry28. We will go hiking this weekend, __________ the weather is good.A. ifB. whenC. providedD. unless29. I __________ a new phone, so I can't call you.A. didn't haveB. haven'tC. hasD. have30. He __________ his car since he got it fixed last week.A. has drivenB. droveC. drivingD. drivesSection III: Writing (40 points)Directions:Write an essay of 400 words on the following topic:"The importance of education in the 21st century"In your essay, discuss the role of education in preparing individuals for the challenges and opportunities of the modern world. What skills and knowledge are essential for success in the 21st century? How can education help to address issues such as poverty, inequality, and climate change? Provide examples and evidence to support your argument.Answer SheetName: ______________________________________ Date:___________________________Section I: Reading Comprehension (40 points)Passage 11. ______2. ______3. ______4. ______5. ______Passage 26. ______7. ______8. ______9. ______ 10. ______Passage 311. ______ 12. ______ 13. ______ 14. ______ 15. ______Passage 416. ______ 17. ______ 18. ______ 19. ______ 20. ______ Section II: Usage (20 points)21. ______ 22. ______ 23. ______ 24. ______ 25. ______ 26. ______ 27. ______ 28. ______ 29. ______ 30. ______ Section III: Writing (40 points)__________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Total Score: ______Good luck!。
新教材高中英语综合质量检测新人教版选择性
选择性必修一综合质量检测第一部分：听力(共两节，满分30分)第一节(共5小题；每小题分，满分分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1．Which sweater will the woman probably buy？__B__A．The blue one.B．The green one.C．The red one.2．What did the man do last night？__C__A．He went to the party.B．He took his final exam.C．He went over his lessons.3．Who has gone back to New York？__B__A．Sandy. B．Sally.C．Stephen.4．How much will the woman give back to the man？__B__A．$13.50. B．$1.50.C．$12.30.5．How does the woman eat for lunch at work now？__B__A．By ordering a takeout.B．By bringing food herself.C．By going to the restaurant.第二节(共15小题；每小题分，满分分)听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6和第7两个小题。
6．Where does the dialogue take place？__B__A．On the street.B．On the phone.C．In the office.7．What will the woman do next？__C__A．Go to repair her phone.B．Find the man by herself.C．Telephone the man once again.听第7段材料，回答第8和第9两个小题。
Non-Destructive Testing and Evaluation
Non-Destructive Testing and Evaluation Non-Destructive Testing and Evaluation Non-destructive testing (NDT) is awide group of analysis techniques used in science and industry to evaluate the properties of a material, component, or system without causing damage. This is in contrast to destructive testing, which is used to determine the properties of a material by causing damage to the material. NDT is commonly used in the aerospace, automotive, and construction industries to ensure the safety and reliability of products and structures. In this essay, we will discuss the importance of non-destructive testing and evaluation and its various techniques. First and foremost, non-destructive testing and evaluation play a crucial role in ensuring the safety and reliability of products and structures. By using NDT techniques, manufacturers and engineers can detect flaws, defects, and discontinuities in materials and components without causing any damage. This allows for the early detection and prevention of potential failures, which is essential for maintaining the integrity of critical infrastructure and ensuring the safety of end users. There areseveral commonly used NDT techniques, each with its own advantages and limitations. One of the most widely used techniques is ultrasonic testing, which uses high-frequency sound waves to detect internal and surface defects in materials. Another common technique is radiographic testing, which uses X-rays or gamma rays tocreate images of the internal structure of a material. Other techniques include magnetic particle testing, liquid penetrant testing, and eddy current testing. Each of these techniques has its own unique applications and is used depending on the specific requirements of the material or component being evaluated. Inaddition to ensuring the safety and reliability of products and structures, non-destructive testing and evaluation also play a critical role in quality controland process optimization. By using NDT techniques, manufacturers can identify and eliminate defects in the early stages of production, leading to cost savings and improved efficiency. Furthermore, NDT can be used to monitor the performance and integrity of materials and components over time, allowing for predictive maintenance and extending the lifespan of critical infrastructure. Despite its numerous advantages, non-destructive testing and evaluation also have some limitations. One of the main challenges is the need for highly trained and skilledpersonnel to perform NDT techniques accurately and reliably. Additionally, some NDT techniques may be time-consuming and require specialized equipment, which can increase the overall cost of testing. Furthermore, certain materials and components may be difficult to inspect using conventional NDT techniques,requiring the development of new and innovative methods. In conclusion, non-destructive testing and evaluation are essential tools for ensuring the safety, reliability, and quality of products and structures. By using a variety of NDT techniques, manufacturers and engineers can detect flaws and defects in materials and components without causing any damage, leading to cost savings, improved efficiency, and extended lifespan of critical infrastructure. While NDT has its limitations, ongoing research and development in this field continue to expand the capabilities of non-destructive testing and evaluation, making it an indispensable part of modern industry.。
低碳经济专八作文英语
The Rise of Low-Carbon Economy: ANecessary Transition for SustainableDevelopmentIn the face of the ever-growing challenges posed by climate change and environmental degradation, thetransition towards a low-carbon economy has become imperative. This shift is not just a response to the urgent need for mitigating the adverse effects of anthropogenic emissions but also a strategic move towards sustainable development. The low-carbon economy, by its nature, aims to decouple economic growth from carbon emissions, promoting innovation, energy efficiency, and renewable energy sources. The concept of a low-carbon economy is gaining momentum worldwide, as countries recognize the urgent need to transition from fossil fuels to cleaner, more sustainable energy sources. This transition is not without its challenges, however. It requires significant investment in research and development, infrastructure upgrades, andpolicy reforms. Despite these challenges, the potential benefits are immense, including reduced greenhouse gasemissions, improved air quality, and enhanced energy security.One of the key drivers of the low-carbon economy is the increasing availability and affordability of renewable energy sources such as solar, wind, and hydroelectric power. These sources of energy are not only carbon-free but also offer the potential for decentralization anddemocratization of energy production. By harnessing the power of nature, we can meet our energy needs while also reducing our carbon footprint.In addition to renewable energy, energy efficiency improvements and carbon capture and storage technologiesare also crucial to achieving a low-carbon economy. Improving the efficiency of our energy systems can help us reduce waste and maximize the use of resources. Carbon capture and storage technologies, on the other hand, can help us mitigate the emissions that cannot be avoided, such as those from industrial processes and heavy-duty vehicles. The transition to a low-carbon economy also requires changes in our consumption patterns and lifestyles. As individuals, we can make choices that reduce our carbonemissions, such as using public transportation, cycling, or walking instead of private vehicles; reducing our meat consumption; and purchasing products and services from companies that prioritize sustainability.Policymakers also play a crucial role in enabling the transition to a low-carbon economy. By implementingpolicies that encourage the development and deployment of renewable energy sources, energy efficiency improvements, and carbon capture and storage technologies, they can create a level playing field for these sustainable options. In addition, policies that promote public awareness and education on the importance of reducing carbon emissions can help create a culture of sustainability that drives the transition.In conclusion, the transition to a low-carbon economy is a necessary step towards achieving sustainable development. It requires a concerted effort from all stakeholders, including governments, businesses, and individuals. By harnessing the power of renewable energy, improving energy efficiency, and adopting sustainablelifestyles, we can build a brighter, more sustainable future for ourselves and our planet.**低碳经济的崛起：实现可持续发展的必要转型** 面对气候变化和环境恶化的日益严峻挑战，向低碳经济的转型已成为当务之急。
carbon 四六级英语
carbon 四六级英语Carbon is a fundamental element that is essential for life on Earth. It is the fourth most abundant element in the universe and is the building block of all organic compounds, including the molecules that make up living organisms. The importance of carbon in our lives cannot be overstated, as it plays a crucial role in various aspects of our existence.One of the most significant roles of carbon is in the process of photosynthesis, which is the primary means by which plants and other autotrophic organisms convert light energy from the sun into chemical energy. During photosynthesis, plants use carbon dioxide (CO2) from the atmosphere, water, and sunlight to produce glucose, which is the primary source of energy for the plant. This process not only provides energy for the plant but also releases oxygen into the atmosphere, which is essential for the survival of other living organisms, including humans.In addition to its role in photosynthesis, carbon is also a vital component of the Earth's atmosphere. Carbon dioxide is a greenhouse gas, which means that it traps heat from the sun and helps maintain the Earth's temperature within a range that is suitablefor life. However, the increased levels of carbon dioxide in the atmosphere due to human activities, such as the burning of fossil fuels, have led to a phenomenon known as global warming, which is causing significant changes in the Earth's climate.The impact of carbon on the environment is not limited to its role in global warming. Carbon is also a key component of the carbon cycle, which is the continuous movement of carbon between the Earth's atmosphere, biosphere, and geosphere. This cycle is essential for maintaining the balance of carbon in the environment and ensuring the continued existence of life on Earth.Beyond its environmental significance, carbon also plays a crucial role in various industries and technologies. Carbon is a key component in the production of steel, which is used in the construction of buildings, bridges, and other infrastructure. It is also used in the production of plastics, which are ubiquitous in modern society and have a wide range of applications, from packaging to medical devices.In the field of energy, carbon is a crucial component in the production of fossil fuels, such as coal, oil, and natural gas, which are the primary sources of energy for much of the world. While the use of these fossil fuels has led to significant advancements in technology and economic development, it has also contributed tothe growing problem of climate change.As a result, there is increasing focus on the development of alternative energy sources that are more sustainable and environmentally friendly. One such alternative is the use of carbon-based materials in the production of renewable energy technologies, such as solar cells and fuel cells.In the field of medicine, carbon is also playing an increasingly important role. Carbon-based materials, such as graphene and carbon nanotubes, are being explored for their potential use in a wide range of medical applications, including drug delivery, tissue engineering, and the development of new diagnostic and therapeutic tools.Overall, the importance of carbon in our lives cannot be overstated. From its role in the environment to its applications in industry and technology, carbon is a fundamental element that is essential for the continued existence and development of life on Earth. As we continue to grapple with the challenges posed by climate change and the need for more sustainable and environmentally friendly technologies, the role of carbon will only become more important in the years and decades to come.。
焦炉烟气超标排放的风险及管控
燃料与化工Fuel&Chemical ProcessesMay.2019 Vol.50No.358焦炉烟气超标排放的风险及管控徐昶辉李海波曹银平杜镇钢(宝山钢铁股份有限公司炼铁厂炼焦分厂，上海200941)摘要：宝钢一期焦炉采用半干法旋转喷雾(SDA)脱硫工艺脱除烟气中的SO2,脱硫装置由旋转喷雾脱硫塔及布袋除尘器组成,脱硫后烟气中SO?浓度不高于30mg/m3。
总结了焦炉烟气存在的超标排放风险以及解决途径。
关键词：烟气净化；SDA；脱硫工艺中图分类号：X784文献标识码：A文章编号：1001-3709(2019)03-0058-03Potential risks and countermeasures in case ofoff-specification emission from coke ovenXu Changhui Li Haibo Cao Yinping Du Zhengang(Coking Plant of Iron Works of Baosteel Co.,Ltd.,Shanghai200941,China)Abstract:In coking project(Phase I)of Baosteel,the SDA deSO*process is used to remove S02in the emission.The deSO*system is composed of spray scrubber and bagfilters.After purification,the concentration of S02in the emission is not higher than30mg/m3.This paper summarizes the potential risks in case of off-specification emission from coke oven,and gives the solutions.Key words:Emission puriEcation；SDA；DeSO*process近年我国钢铁行业发展迅猛，环境与发展的矛盾也日益突出，钢铁工业要保持可持续发展,就必须减少对环境的污染，减少S02排放是钢铁工业减少环境污染的关键环节之一。
碳中和的关键不确定因素
碳中和的关键不确定因素英文回答：One of the key uncertainties in achieving carbon neutrality is the availability and scalability of clean energy technologies. While there are already renewable energy sources like solar and wind power, theirintermittent nature and limited capacity pose challengesfor widespread adoption. For example, solar panels only generate electricity when the sun is shining, and wind turbines only produce power when the wind is blowing at the right speed. This means that energy storage solutions and grid infrastructure upgrades are necessary to ensure a reliable and continuous supply of clean energy.Another uncertainty is the cost of transitioning to carbon-neutral technologies. While renewable energy costs have been steadily declining, there are still significant upfront investments required to build the necessary infrastructure. For instance, building a wind farm orinstalling solar panels can be expensive, and the costs may vary depending on factors like location, availability of resources, and government policies. Additionally, retrofitting existing industries and transportation systems to reduce emissions can also be costly and require significant financial resources.Furthermore, the political and regulatory landscape can greatly influence the pace and effectiveness of carbon neutrality efforts. Government policies and incentives play a crucial role in driving the transition to clean energy and reducing carbon emissions. However, politicalpriorities may change over time, leading to shifts in policies and regulations that can either support or hinder carbon neutrality goals. For example, changes in government leadership or shifts in public opinion can result in policy reversals or delays in implementing carbon reduction measures.In addition, technological advancements and innovation are essential for achieving carbon neutrality. While there are already existing clean technologies, further researchand development are needed to improve their efficiency and reduce costs. Breakthroughs in areas such as energy storage, carbon capture and storage, and sustainable transportation can significantly accelerate the transition to a carbon-neutral future. However, the timeline and success of these advancements are uncertain and depend on various factorslike funding, collaboration between researchers and industry, and market demand.中文回答：在实现碳中和过程中，一个关键的不确定因素是清洁能源技术的可用性和可扩展性。
双重减排的看法英语作文
双重减排的看法英语作文Double reduction of emissions refers to the process of reducing both greenhouse gas emissions and air pollutantsin order to protect the environment and human health. This approach is gaining increasing attention as the world faces the challenges of climate change and air pollution. In this essay, we will discuss the importance of double reduction of emissions and its potential benefits.First and foremost, double reduction of emissions is crucial for mitigating climate change. Greenhouse gas emissions, such as carbon dioxide and methane, are major contributors to global warming and climate change. By reducing these emissions, we can slow down the pace of climate change and minimize its impact on the environment. This is essential for preserving biodiversity, protecting ecosystems, and ensuring the well-being of future generations.In addition to addressing climate change, doublereduction of emissions also helps to improve air quality.Air pollutants, such as sulfur dioxide, nitrogen oxides,and particulate matter, have serious health impacts, including respiratory diseases, cardiovascular problems,and even premature death. By reducing these pollutants, we can improve air quality, protect public health, and enhance the quality of life for all.Furthermore, double reduction of emissions can lead to multiple co-benefits. For example, transitioning to renewable energy sources can not only reduce greenhouse gas emissions but also create new job opportunities andstimulate economic growth. Similarly, promoting energy efficiency can not only lower energy consumption and reduce emissions but also save costs for households and businesses. By pursuing a comprehensive approach to emissions reduction, we can achieve multiple benefits and create a more sustainable and resilient society.To realize the full potential of double reduction of emissions, it is essential to adopt a holistic andintegrated approach. This includes implementing policiesand regulations that promote emissions reduction, investing in clean technologies and infrastructure, and fostering collaboration among governments, businesses, and civil society. By working together towards a common goal, we can accelerate the transition to a low-carbon and pollution-free future.In conclusion, double reduction of emissions is a critical strategy for addressing the challenges of climate change and air pollution. By reducing both greenhouse gas emissions and air pollutants, we can protect the environment, safeguard public health, and create a more sustainable and prosperous society. It is time for all of us to take action and embrace the double reduction of emissions as a pathway towards a cleaner, greener, and healthier world.。
关于两碳目标的英语作文
关于两碳目标的英语作文1. So, I've been thinking a lot about this whole two-degree target thing. And honestly, it's a bit overwhelming.I mean, we're talking about limiting global warming to just two degrees Celsius. That's a pretty tall order, don't you think?2. The thing is, though, it's not just about the numbers. It's about the impact that climate change is having on our world right now. We're seeing more extreme weather events, rising sea levels, and disappearing ecosystems. It's scary stuff, and we need to do something about it.3. Now, I know there are a lot of skeptics out there who think that climate change is just a natural cycle or that it's not as urgent as scientists say. But here's the thing: even if we're wrong about the causes, isn't itbetter to be safe than sorry? I mean, why take the risk?4. And let's not forget about the social and economic implications of climate change. It's not just about saving the polar bears (although they are pretty cute). It's about protecting our homes, our jobs, and our future. We can't afford to ignore this issue any longer.5. So, what can we do? Well, it's not going to be easy, that's for sure. We're going to have to make some tough choices and make some sacrifices. But isn't that better than the alternative? I think so.6. We need to invest in renewable energy, reduce our carbon emissions, and change our lifestyles. It's going to take a collective effort, but if we all work together, we can make a difference. We can create a world that is sustainable and livable for future generations.7. Look, I know it's easy to feel overwhelmed by the enormity of the problem. But we can't let that stop us from taking action. We have a responsibility to ourselves, to each other, and to the planet. Let's rise to the challenge and make a real difference. Our future depends on it.。
关于工业的英语作文
关于工业的英语作文The industrial revolution changed the world in so many ways. It brought about the mass production of goods, therise of urban centers, and a shift from agrarian toindustrial economies. Factories sprung up, powered by steam engines and later electricity, and the world was never the same.The impact of industrialization on the environment cannot be overstated. The burning of fossil fuels led toair and water pollution on a massive scale. Forests were cleared for timber and to make way for factories. Thenatural landscape was forever altered by the demands of industry.The working conditions in early factories were often deplorable. Long hours, low pay, and dangerous working conditions were the norm. Child labor was rampant, andthere were few regulations to protect the rights of workers. It wasn't until the labor movement gained traction thatthings began to improve.The industrial revolution also brought about incredible technological advancements. The invention of the steam engine, the telegraph, and the cotton gin revolutionized transportation, communication, and manufacturing. These innovations laid the groundwork for the modern world as we know it.The rise of industrial capitalism changed the economic landscape. Wealth became concentrated in the hands of a few industrialists, while the working class struggled to make ends meet. This economic disparity led to social unrest and the rise of labor unions and socialist movements.In conclusion, the industrial revolution had a profound impact on society, the environment, and the economy. It transformed the way we live and work, and its effects are still felt today. While it brought about incredible advancements, it also had negative consequences that we are still grappling with.。
关于自然垄断的英语作文
关于自然垄断的英语作文英文回答：Natural monopolies arise in industries where the fixed costs of production are high and the marginal cost of producing additional units is low. This means that it is more efficient for a single firm to produce the entire output of the industry than for multiple firms to compete.There are several reasons why natural monopolies occur. One reason is that the technology used in the industry is characterized by economies of scale. This means that the average cost of production decreases as the scale of production increases. As a result, it is more efficient for a single firm to produce the entire output of the industry than for multiple firms to compete.Another reason why natural monopolies occur is that the industry is characterized by network effects. This means that the value of a product or service to a consumerincreases as the number of other consumers who use the product or service increases. For example, the value of a telephone network increases as the number of people who have telephones increases. This is because the more people who have telephones, the more valuable the network is to each individual user.Natural monopolies can have several consequences for consumers. First, natural monopolies can lead to higher prices. This is because the monopolist has the power to set prices above the competitive level. Second, natural monopolies can lead to lower quality. This is because the monopolist has no incentive to improve quality if it can maintain its profits by setting prices above the competitive level. Third, natural monopolies can lead to less innovation. This is because the monopolist has no incentive to innovate if it can maintain its profits by setting prices above the competitive level.There are several ways to regulate natural monopolies. One way is to regulate prices. This can be done by setting a price cap that prevents the monopolist from chargingprices above a certain level. Another way to regulate natural monopolies is to regulate entry into the industry. This can be done by making it difficult for new firms to enter the industry. A third way to regulate natural monopolies is to break them up into smaller firms. This can be done by antitrust laws that prohibit firms from acquiring too much market power.中文回答：什么是自然垄断？自然垄断是指在某一行业中，生产的固定成本很高，而生产附加单位的边际成本很低。
行业工业的英语
行业工业的英语The industry and its impact on modern society is a topic that resonates with many. Here's a composition that exploresits various facets:In the heart of the city, the hum of industry is aconstant symphony. It's the pulse of progress, driving the gears of our daily lives. Factories, once mere structures, have become the lifeblood of economic vitality.The industrial revolution, a pivotal moment in history, transformed the world with its steam and iron. It ushered in an era of mass production, making goods more accessible and affordable than ever before.However, the march of industry is not without its shadows. The environment bears the brunt of industrial growth, with pollution a silent but potent consequence. Yet, the industryis also at the forefront of innovation, developingsustainable practices to mitigate its impact.Technology and industry are intertwined, with each advancement in one propelling the other forward. Automation and robotics are not just buzzwords; they are the future of industry, promising efficiency and precision.The workforce in the industry has evolved too. No longer just brawn, it now requires brains and skill. Training andeducation are integral to keeping pace with the ever-changing industrial landscape.Globalization has also reshaped the industry. It's no longer confined by borders; it's a global network of production and trade. This interconnectedness has both opportunities and challenges for the industry.The future of the industry is as uncertain as it is exciting. With the rise of renewable energy and the push for a greener economy, the industry must adapt to not only sustain but also to thrive in a world that values sustainability.In conclusion, the industry is a complex tapestry woven with threads of innovation, responsibility, and change. It is a testament to human ingenuity and a key player in shaping our world for the better.。
高考真题电子版试卷英语
Part I Listening Comprehension (25 points)Section A (5 points)In this section, you will hear 5 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question, there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 1 with a single line through the center.1. A) He is a good teacher. B) He is a good student. C) He is a good doctor. D) He is a good writer.2. A) They are discussing a book. B) They are discussing a movie. C) They are discussing a restaurant. D) They are discussing a class.3. A) She is a teacher. B) She is a student. C) She is a doctor. D) She is a librarian.4. A) He is planning a trip. B) He is reading a book. C) He is watchinga movie. D) He is working on a project.5. A) She likes tea. B) She likes coffee. C) She doesn't like drinks. D) She doesn't know what to drink.Section B (10 points)In this section, you will hear 2 long conversations. At the end of each conversation, there will be some questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the center.Conversation 16. A) They are discussing the weather. B) They are discussing their school life. C) They are discussing their summer plans. D) They are discussing their favorite subjects.7. A) They will go swimming. B) They will go hiking. C) They will go camping. D) They will go sightseeing.8. A) She is good at math. B) She is good at science. C) She is good at art. D) She is good at music.Conversation 29. A) They are discussing a new movie. B) They are discussing a new book.C) They are discussing a new restaurant. D) They are discussing a new game.10. A) He thinks it is a good movie. B) He thinks it is a bad movie. C) He thinks it is a good book. D) He thinks it is a bad book.11. A) They will go to the cinema. B) They will read the book. C) They will go to the restaurant. D) They will play the game.Part II Reading Comprehension (40 points)Section A (20 points)Read the following four passages, and answer the questions below each passage by choosing A), B), C) or D). The first passage is for questions 12-16.Passage 1Twelve years ago, the Internet was still a new thing. People wereexcited about the possibilities it offered, but many were also worried about the risks. One of the biggest concerns was the spread of viruses and malware.Tom was an IT specialist. He worked for a large company and was responsible for keeping their systems secure. One day, he received an email from a friend. The email looked legitimate, but Tom knew better. He was aware of the risks of phishing attacks and immediately suspected that the email was a scam.Tom decided to investigate further. He traced the email back to its source and discovered that it was indeed a phishing attempt. He reportedthe incident to his company and worked with them to prevent similar attacks in the future.Tom's actions saved the company from potential data breaches and financial loss. He became a hero in the company and was recognized for his vigilance.12. What was Tom's job?A) A teacher. B) An IT specialist. C) A doctor. D) A writer.13. What was Tom's biggest concern about the Internet?A) The spread of viruses. B) The cost of Internet access. C) The lack of privacy. D) The difficulty of finding information.14. How did Tom find out the email was a scam?A) He clicked on the link. B) He analyzed the email. C) He called his friend. D) He ignored the email.15. What did Tom do after discovering the scam?A) He deleted the email. B) He reported the incident. C) He ignored the email. D) He warned his friend.16. What was the result of Tom's actions?A) He lost his job. B) He was promoted. C) He was fired. D) He received no recognition.Section B (20 points)Read the following passage, and answer the questions by choosing A), B), C) or D).Passage 2Global warming is a serious issue that affects us all. It refers to the long-term increase in Earth's average surface temperature due to human activities. The most significant contributors to global warming are the burning of fossil fuels, deforestation, and industrial emissions.One of the consequences of global warming is the melting of polar ice caps. This leads to rising sea levels, which can cause severe flooding in coastal areas. Another consequence is more frequent and severe weather events, such as hurricanes, droughts, and heatwaves.To combat global warming, governments and individuals must take action. This includes reducing carbon emissions, investing in renewable energy, and promoting sustainable practices. We must also raise awareness about the importance of taking care of our planet.17. What is the main topic of the passage?A) The causes of global warming. B) The consequences of global warming.C) The solutions to global warming. D) The effects of deforestation.18. What is one of the consequences of global warming?A) Increased rainfall. B) Melting polar ice caps. C) Improved air quality. D) More sunny days.19. What are some ways to combat global warming?A) Using less electricity. B) Burning more fossil fuels. C) Cutting down trees. D) Buying new cars.20. What is the author's main message?A) Global warming is a natural phenomenon. B) Global warming is not a serious problem. C) We must take action to combat global warming. D) Global warming is caused by aliens.Part III Writing (25 points)Write an essay of about 150-200 words on the following topic:If you could travel anywhere in the world, where would you go and why? Please include the following points in your essay:1. The place you would like to visit.2. The reasons for choosing that place.3. What you would like to do there.You should write neatly on Answer Sheet 2. Do not sign your own name at the top of the page. Use a pseudonym instead.---Note: This is a simplified version of a high school English exam paper. The actual exam would include more questions and passages, and the writing section would have a specific prompt.。
沈阳市郊区环境空气中醛酮类化合物的污染特征与来源分析
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关键词: 醛酮类化合物ꎻ 污染特征ꎻ 人体健康风险ꎻ 污染防控ꎻ 沈阳市
中图分类号: Ｘ５１５ 文章编号: １００１￣６９２９(２０２０)１２￣２７７１￣１４
文献标志码: Ａ
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雅思作文大型工业船只
雅思作文大型工业船只The rise of colossal industrial vessels has undeniably transformed the landscape of maritime trade. These behemoths of the ocean, often stretching hundreds of meters in length and boasting capacities exceeding 20,000 TEUs (twenty-foot equivalent units), serve as the lifeblood of global commerce, facilitating the efficient transportation of vast quantities of goods across continents. However, their sheer size and dominance raise a multitude of complex questions concerning economic implications, environmental impact, and safety considerations. The economic advantages of these leviathans are undeniable. Economies of scale, a term referring to the cost advantages that arise with increased output, come into play as larger ships can transport more cargo with proportionally less fuel consumption per unit, leading to significant cost savings for shipping companies and ultimately lower prices for consumers. This boost to international trade has undoubtedly spurred economic growth and fostered global interconnectedness. Yet, this economic boon is not without its drawbacks. Smaller ports often lack the infrastructure to accommodate these giants, leading to a concentration of trade routes and potential bottlenecks in the supply chain. Additionally, the reliance on a limited number of mega-ships creates avulnerability to disruptions, as evidenced by the recent Suez Canal blockage, which sent ripples through the global economy. Concerns regarding the environmental impact of these massive vessels are also mounting. While technological advancements have led to more fuel-efficient engines, the sheer volume of fuel consumed by these giants contributes significantly to greenhouse gas emissions and air pollution. Furthermore, the risk of oil spills, while statistically low, could have catastrophic consequences for marine ecosystems and coastal communities. Balancing economic growth with environmental sustainability is a tightrope walk that requires careful consideration and innovative solutions. Safety is another paramount concern. Navigating these colossal ships through narrow channels and busy ports presents unique challenges, and the potential consequences of accidents are immense. The sheer size of these vessels makes evacuation and rescue operations more complex, and the environmental damage from a major incident could be devastating. Stringent regulations, advanced training forcrews, and continuous improvement in navigational technology are crucial for mitigating these risks and ensuring the safety of both crew and environment. Beyond these immediate concerns, the rise of mega-ships also prompts us to reflect on the broader social and ethical implications. The automation of ship operations, while enhancing efficiency, raises concerns about job displacement for seafarers. Moreover, the concentration of shipping power in the hands of a few major corporations has the potential to stifle competition and limit opportunities for smaller players in the industry. In conclusion, the emergence of large industrial vessels has ushered in a new era of maritime trade, characterized by efficiency, scale, and economic interconnectedness. However, the challenges related to environmental sustainability, safety, and social equity cannot be ignored. As we navigate the future of maritime trade, a holistic approach that balances economic progress with environmental responsibility, safety considerations, and ethical practices is essential for ensuring the long-term sustainability and resilience of this vital industry. Only through careful planning, technological innovation, and international cooperation can we harness the benefits of these maritime giants while mitigating their potential drawbacks and charting a course towards a more sustainable and equitable future for global trade.。
二氧化碳催化的工业实例
二氧化碳催化的工业实例英文回答：Carbon dioxide (CO2) is a greenhouse gas that is primarily responsible for global warming and climate change. However, it can also be used as a valuable resource in various industrial applications. One notable example is the use of CO2 as a catalyst in industrial processes.One common use of CO2 as a catalyst is in theproduction of urea, which is a key component in fertilizers and various other chemical products. The Haber-Bosch process, which is widely used to produce ammonia (NH3) from nitrogen (N2) and hydrogen (H2), also involves the use of CO2 as a catalyst. The CO2 acts as a promoter for the reaction, enhancing the efficiency and yield of ammonia production.Another industrial application of CO2 as a catalyst isin the production of methanol. Methanol is a versatilechemical that is used as a fuel, solvent, and feedstock for various other chemical processes. The CO2 is used as a catalyst in the conversion of carbon monoxide (CO) and hydrogen (H2) to methanol. This process, known as the methanol synthesis reaction, is an important step in the production of methanol from syngas.Furthermore, CO2 can also be used as a catalyst in the production of polymers. For example, CO2 can be copolymerized with epoxides to produce polycarbonates, which are widely used in the production of plastics, coatings, and other materials. The incorporation of CO2into the polymer structure not only reduces the environmental impact of the materials but also enhances their properties.In addition to these examples, CO2 can also be used as a catalyst in other industrial processes, such as the production of cyclic carbonates, formic acid, and other chemicals. The use of CO2 as a catalyst not only provides a sustainable and environmentally friendly approach to chemical synthesis but also helps to mitigate the impact ofCO2 emissions on climate change.中文回答：二氧化碳（CO2）是一种温室气体，主要导致全球变暖和气候变化。