Efficient conversion of H<sub>2</sub>S into mercaptan alcohol by tertiary-amine functionalized ionic liquids

Wenjie Xiong; Mingzhen Shi; Yan Lu; Xiaomin Zhang; Xingbang Hu; Zhuoheng Tu; Youting Wu

doi:10.1016/j.cjche.2022.07.001

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Efficient conversion of H₂S into mercaptan alcohol by tertiary-amine functionalized ionic liquids

Separation Science and Engineering | Updated：2026-01-06

- Efficient conversion of H₂S into mercaptan alcohol by tertiary-amine functionalized ionic liquids
- Chinese Journal of Chemical Engineering Vol. 50, Issue 10, Pages: 197-204(2022)
- Affiliations：
  
  1. Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University,Nanjing,China,210023
  2. Institute of Green Chemistry and Engineering, Nanjing University,Suzhou,China,215163
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2022.07.001
  CLC：
- Published：2022
- Accepted：
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S into mercaptan alcohol by tertiary-amine functionalized ionic liquids[J]. 中国化学工程学报, 2022, 50(10): 197-204.
DOI：

S into mercaptan alcohol by tertiary-amine functionalized ionic liquids[J]. 中国化学工程学报, 2022, 50(10): 197-204. DOI： 10.1016/j.cjche.2022.07.001.

摘要

Abstract

The resource utilization of hydrogen sulfide (H

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

S into mercaptan alcohols with enols. The effect of ILs

substrate scope

and regeneration experiments have been investigated. It is found that the conversion of 3-methyl-2-buten-1-ol by H

S can reach 52% with a 50% (mol) catalyst loading of bis(2-dimethylaminoethyl) ether methoxyacetate within 12 h at 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

S to high valuable mercaptan alcohol

which makes the utilization method of H

S resource universal and has the potentiality for industrial application.

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Efficient conversion of H2S into mercaptan alcohol by tertiary-amine functionalized ionic liquids

DOI：10.1016/j.cjche.2022.07.001

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Abstract

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Efficient conversion of H₂S into mercaptan alcohol by tertiary-amine functionalized ionic liquids