双氧水直接氧化丙烯制环氧丙烷新技术通过鉴定

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Researchprogressesinfuelethanolproductionfromlignocellulosicmaterials

MAXian-gang1,2,XUHeng-yong2,LIWen-zhao2

(1.DepartmentofChemistry,HarbinNormalUniversity,Harbin150025,China;

2.LaboratoryofAppliedCatalysis,DalianInstituteofChemicalPhysics,ChineseAcademyofSciences,Dalian116023,China)

Abstract:Lignocellulosicmaterialscanbeutilizedtoproducefuelethanol.Therearetwokeytechniquesinvolvedinthiscon-version:hydrolysisofcelluloseinthelignocellulosicmaterialstosugars,andfermentationofsugarstoethanol.Thedevelopmentsta-tusaboutthemispresented.Variousmethodsformaterialpretreatment,hydrolysisandfermentationarereviewed.Thechallengestothisfieldarealsopointedout,andsomesuggestionsareproposedforfurtherresearch.

KeyWords:lignocellulose;fuelethanol;materialpretreatment;hydrolysis;fermentation

马现刚等:木质纤维素生产燃料乙醇的研究进展

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动态简讯

双氧水直接氧化丙烯制环氧丙烷新技术通过鉴定

大连化物所的“双氧水直接氧化丙烯制环氧丙烷”新技术最近通过了由辽宁省科技厅组织、沈阳分院主持的专家组鉴定。专家组一致认为,该项目开发的反应控制相转移催化双氧水直接氧化丙烯制备环氧丙烷的新工艺,与原位耦合法相比,简化了工艺流程,减少了催化剂的损失;与氯醇法相比污染显著减少,工艺简单,环境友好;在优化的工艺条件下,催化剂循环使用5次后,环氧丙烷相对H2O2的产率仍保持在87%以上,产物分布选择性大于99%。该技术在国内外专利、文献中未见报道,属原创性成果,具有良好的应用前景,达到了国际先进水平。

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