离子液体在SO_2脱除中的研究进展  

Research progress of ionic liquids for removal of SO_2

作　　者：赵途 孙涛略 张连宇[1] 田月[1] 寇晓倩 胡永琪[1,2] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]河北省药物化工工程技术研究中心,河北石家庄050018

出　　处：《现代化工》2016年第2期17-21,23,共6页Modern Chemical Industry

摘　　要：在分析了几类常见的离子液体吸收气体SO_2研究的基础上,针对现有物理化学吸收型离子液体存在的与SO_2结合力强、解析条件苛刻的缺点,重点介绍了新型的脱硫离子液体——醚基功能化咪唑类离子液体,该类离子液体是在物理吸收型咪唑类离子液体阳离子上引入醚基,醚基中的O易对SO_2中的S形成物理的作用力,可以通过增加醚基功能基团的数量形成多吸收位以增加吸收量,且再生条件温和。还对离子液体脱硫过程中的影响因素进行了分析和综述。Based on the analysis of several kinds of ionic liquids for the removal of SO2 in flue gas, a new type of SOs-adsorbing ionic liquids, ether-functionalized imidazolium-based ionic liquids （EFIILs）, is emphatically introduced, in which ether group is grafted on the cation of imidazolium-based ionic liquids. Oxygen in ether group may form adsorption forces with S in SO2. The quantity of absorption can be increased by increasing the number of ether group in the ionic liquids. In particular, the regeneration conditions are mild. The influencing factors in the process of desulfurization are also discussed.

关 键 词：离子液体 脱硫 醚基功能化 

分 类 号：TE624.55[石油与天然气工程—油气加工工程]