双Lewis碱功能性低共熔溶剂吸收CO_(2)的速率研究  

Study on the Absorption Rate of CO_(2)by Dual-Lewis Base Functionalized Deep Eutectic Solvents

作　　者：孙浩 李航 刘振 夏桂兵 郑文涛 Sun Hao;Li Hang;Liu Zhen;Xia Guibing;Zheng Wentao(School of Chemistry and Environmental Engineering,Yancheng Teachers University,Yancheng 224007,China)

机构地区：[1]盐城师范学院化学与环境工程学院,江苏盐城224007

出　　处：《山东化工》2022年第12期18-21,共4页Shandong Chemical Industry

基　　金：盐城师范学院大学生创新创业项目(校级)202110324119H。

摘　　要：以1,8-二氮杂二环十一碳-7-烯(DBU)为HBA,以咪唑(IM)、2-咪唑烷酮(EU)、吡咯(PY)分别为HBD制备双Lewis碱功能化的低共熔溶剂(DESs)吸收CO_(2)。文章详细探索了HBD种类、HBA与HBD物质的量比以及温度T对吸收速率的影响。结果发现,以咪唑为HBD的低共熔溶剂吸收速率最快,主要得益于其适中的黏度和较强的碱性。此外,随着HBA与HBD物质的量比的增大以及温度的升高,吸收速率均加快。这些结果有望对DESs用于CO_(2)吸收提供数据支持。In this paper,dual-Lewis base functionalized deep eutectic solvents(DESs)were synthesized with the 1,8-diazabicycloundecano-7-ene(DBU)as the hydrogen bond acceptor(HBA)and imidazole(IM),2-imidazolidinone(EU)and pyrrole(PY)as the hydrogen bond donor(HBD)to absorb CO_(2).The influence of the HBD species,the molar ratio of HBA to HBD,and the temperature(T)on the absorption rate of CO_(2)were investigated in detail.Results showed that the absorption rate of DES with imidazole as the HBD was the fastest,which was mainly due to its moderate viscosity and strong alkalinity.In addition,the absorption rate was found to increase with the increasing molar ratio of HBA to HBD and temperature.These results were expected to provide data support for the application of DESs for CO_(2)absorption in the future.

关 键 词：CO_(2) 低共熔溶剂 吸收速率 1 8-二氮杂二环十一碳-7-烯 

分 类 号：TQ413[化学工程] X701[环境科学与工程—环境工程]