烟气二氧化碳捕集流程

烟气二氧化碳捕集流程
英文回答：
The process of capturing carbon dioxide from flue gas, also known as carbon capture, involves several steps. First, the flue gas is collected from industrial processes or
power plants. This flue gas contains a high concentration
of carbon dioxide, which is a greenhouse gas responsible
for climate change.
Next, the flue gas is treated to remove impurities such as sulfur dioxide and nitrogen oxides. This is done to ensure that the captured carbon dioxide is of high purity. Various methods can be used for this purification step, including chemical absorption, membrane separation, and adsorption.
Once the impurities are removed, the carbon dioxide is captured using a solvent or absorbent material. One commonly used solvent is an aqueous solution of amine,
which reacts with carbon dioxide to form a stable compound. This compound is then separated from the solvent, and the carbon dioxide is released.
After the carbon dioxide is captured, it needs to be transported and stored. This can be done through pipelines or by converting it into a liquid form, known as liquefied carbon dioxide (LCO2), for transportation. The carbon dioxide can be stored underground in geological formations, such as depleted oil and gas reservoirs or deep saline aquifers.
The captured carbon dioxide can also be utilized in various ways. One option is to use it for enhanced oil recovery (EOR), where the carbon dioxide is injected into oil wells to increase oil production. Another option is to convert the carbon dioxide into valuable products, such as chemicals or fuels, through a process called carbon capture and utilization (CCU).
Overall, the process of carbon dioxide capture from
flue gas is a complex and multi-step process. It requires
the use of different technologies and techniques to effectively capture, transport, and store carbon dioxide.
By implementing carbon capture technologies, we can reduce the emissions of greenhouse gases and mitigate the impacts
of climate change.
中文回答：
烟气二氧化碳捕集流程，也被称为碳捕集，涉及几个步骤。

首先，从工业过程或发电厂收集烟气。

这种烟气含有高浓度的二氧化碳，它是导致气候变化的温室气体。

接下来，对烟气进行处理以去除二氧化硫和氮氧化物等杂质。

这样做是为了确保捕集到的二氧化碳纯度较高。

可以使用多种方法
进行纯化步骤，包括化学吸收、膜分离和吸附。

一旦杂质被去除，就使用溶剂或吸附剂材料捕集二氧化碳。

一
种常用的溶剂是胺的水溶液，它与二氧化碳反应形成稳定的化合物。

然后将该化合物与溶剂分离，释放出二氧化碳。

捕集到二氧化碳后，需要进行运输和储存。

可以通过管道运输，或将其转化为液态形式，即液态二氧化碳（LCO2）进行运输。

二氧
化碳可以储存在地下地质形成中，如耗尽的油气储层或深层咸水层。

捕集到的二氧化碳还可以以各种方式利用。

一种选择是将其用
于增强油田采收（EOR），其中将二氧化碳注入油井以增加油产量。

另一种选择是通过碳捕集和利用（CCU）过程将二氧化碳转化为有价
值的产品，如化学品或燃料。

总体而言，烟气二氧化碳捕集流程是一个复杂的多步骤过程。

它需要使用不同的技术和方法来有效地捕集、运输和储存二氧化碳。

通过实施碳捕集技术，我们可以减少温室气体排放，缓解气候变化
的影响。