负载型咪唑类离子液体催化CO_(2)转化合成碳酸丙烯酯研究  

Synthesis of propylene carbonate from CO_(2)catalyzed by supported imidazoles ionic liquids

作　　者：滑淑清 王景芸[1] 孙京 周明东[1] HUA Shu-qing;WANG Jing-yun;SUN Jing;ZHOU Ming-dong(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《燃料化学学报（中英文）》2023年第10期1506-1513,共8页Journal of Fuel Chemistry and Technology

摘　　要：CO_(2)是导致全球气候变暖的主要温室气体之一,但同时又是丰富的C1资源,故其高值化利用受到了人们关注。环状碳酸酯是电池及电容器的优良介质,在工业生产中应用极为广泛。因此,从环境保护和资源利用的角度看,将CO_(2)转化为环状碳酸酯具有重要的意义。本工作合成了一系列聚苯乙烯树脂负载的咪唑类非均相催化剂,考察了此类催化剂在高压反应釜中催化二氧化碳环加成反应的活性。结果表明,催化剂PS-TBIM-PCIMBr_(2)表现出优秀且稳定的催化活性,PSTBIM-PCIMBr_(2)在固定床连续反应器上可以连续运行500 h,反应依旧可以获得91%的产率。Carbon dioxide is one of the most main greenhouse gases causing the global warming,however,as a rich C1 resource,the high value utilization of CO_(2)has attracted wide attention.Cyclic carbonate is an excellent medium for batteries and capacitors,which is widely used in industrial production.Therefore,it is of great significance to convert CO_(2)into cyclic carbonate from the viewpoint of environmental protection and resource utilization.In this paper,we synthesized a series of imidazole heterogeneous catalysts supported on polystyrene resin,and the catalytic activity for cycloaddition reaction of CO_(2)in high pressure reactor was studied.The results showed that PS-TBIMPCIMBr_(2)exhibited the excellent and stable catalytic activity.PS-TBIM-PCIMBr_(2)was also used to prepare propylene carbonate in the continuous fixed-bed reactor and the yield of PC was still 91%after 500 h.

关 键 词：二氧化碳 环氧丙烷 环状碳酸酯 咪唑离子液体 多相催化剂 

分 类 号：TQ2[化学工程—有机化工]