Progress on hydrogen sulfide removal using ionic liquids

doi:10.11949/j.issn.0438-1157.20141889

Abstract

Abstract:

In this paper, the recent research progress of hydrogen sulfide (H₂S) removal using ionic liquids (ILs) is reviewed, mainly focusing on the research around the solubility of H₂S in ionic liquids and the selectivity to other gases, the thermodynamics properties and the corresponding models of H₂S-ILs system. The absorption mechanism is discussed considering the influence of the anion and cation, and the substituent group of ILs on the solubility. Then the development trends and research perspective in this field are given.

Key words: hydrogen sulfide, ionic liquids, gas separation, solubility, absorption mechanism

摘要：

针对近年来离子液体在吸收分离硫化氢(H₂S)气体方面的研究进展, 重点论述了H₂S在离子液体中的溶解度及对其他气体的选择性、H₂S-离子液体体系的热力学性质及模型。对离子液体吸收H₂S的机理进行了分析, 阐述了离子液体阴阳离子种类、结构以及取代基等对H₂S分离性能的影响规律, 简要提出了该领域存在的研究难点和未来的发展方向。

关键词: 硫化氢, 离子液体, 气体分离, 溶解性, 吸收机理

CLC Number:

X511

CAO Lingdi, ZENG Shaojuan, ZHANG Xiangping, ZHANG Suojiang. Progress on hydrogen sulfide removal using ionic liquids[J]. CIESC Journal, 2015, 66(S1): 1-9.

曹领帝, 曾少娟, 张香平, 张锁江. 离子液体吸收分离硫化氢进展[J]. 化工学报, 2015, 66(S1): 1-9.

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