Efficient conversion of H_(2)S into mercaptan alcohol by tertiary-amine functionalized ionic liquids  

作　　者：Wenjie Xiong Mingzhen Shi Yan Lu Xiaomin Zhang Xingbang Hu Zhuoheng Tu Youting Wu 

机构地区：[1]Key Laboratory of Mesoscopic Chemistry of MOE,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China [2]Institute of Green Chemistry and Engineering,Nanjing University,Suzhou 215163,China

出　　处：《Chinese Journal of Chemical Engineering》2022年第10期197-204,共8页中国化学工程学报（英文版）

基　　金：sponsored by the National Natural Science Foundation of China(22078145,22208140)。

摘　　要：The resource utilization of hydrogen sulfide(H_(2)S)is of great significance in natural gas chemical industry.Described herein have developed a novel method mediated in tertiary amine-functionalized ionic liquids(ILs)to convert H_(2)S into mercaptan alcohols with enols.The effect of ILs,substra te scope,and regeneration experiments have been investigated.It is found that the conversion of 3-methyl-2-buten-1-ol by H_(2)S can reach 52%with a 50%(mol)catalyst loading of bis(2-dimethylaminoethyl)ether methoxyacetate within 12 hat 90℃.The reaction mechanism was speculated based on theoretical calculation.Besides,a plausible reaction-separation-integrated strategy was further proposed.This work reveals an effective insight into the capture and catalytic conversion of H_(2)S to high valuable mercaptan alcohol,which makes the utilization method of H_(2)S resource universal and has the potentiality for industrial application.

关 键 词：Ionic liquids Reaction CATALYSIS Hydrogen sulfide DFT calculation 

分 类 号：X701[环境科学与工程—环境工程] TQ227.1[化学工程—有机化工]