Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H<sub>2</sub>O

LIU Xueke; ZHANG Li; LIU Fen; GAO Shuaitao; YU Jiang; SHANG Jianfeng; OU Tianxiong; ZHOU Zheng; CHEN Pingwen

doi:10.11949/0438-1157.20200336

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Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H₂O

Energy and environmental engineering | 更新时间：2026-07-24

- Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H₂O
- CIESC Journal Vol. 71, Issue 11, Pages: 5286-5293(2020)
- 作者机构：
  
  1.北京化工大学化学工程学院，能源环境催化北京市重点实验室环境催化与分离过程研究组，北京 100029
  2.中国石油化工股份有限公司中原油田普光分公司，四川达州 635000
  3.中国石油化工股份有限公司中原油田分公司天然气处理厂，河南濮阳 457000
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20200336
  CLC： X 701. 3
- Received：30 March 2020，
  
  Revised：2020-06-30，
  
  Online First：03 November 2020，
  
  Published：05 November 2020
- 稿件说明：
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刘雪珂, 张丽, 刘芬, 高帅涛, 余江, 商剑锋, 欧天雄, 周政, 陈平文. NHD/MDEA/H₂O复合脱硫液催化水解羰基硫[J]. 化工学报, 2020, 71(11): 5286-5293 DOI: 10.11949/0438-1157.20200336.

LIU Xueke, ZHANG Li, LIU Fen, GAO Shuaitao, YU Jiang, SHANG Jianfeng, OU Tianxiong, ZHOU Zheng, CHEN Pingwen. Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H₂O[J]. CIESC Journal, 2020, 71(11): 5286-5293 DOI: 10.11949/0438-1157.20200336.
刘雪珂, 张丽, 刘芬, 高帅涛, 余江, 商剑锋, 欧天雄, 周政, 陈平文. NHD/MDEA/H₂O复合脱硫液催化水解羰基硫[J]. 化工学报, 2020, 71(11): 5286-5293 DOI: 10.11949/0438-1157.20200336. DOI：

LIU Xueke, ZHANG Li, LIU Fen, GAO Shuaitao, YU Jiang, SHANG Jianfeng, OU Tianxiong, ZHOU Zheng, CHEN Pingwen. Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H₂O[J]. CIESC Journal, 2020, 71(11): 5286-5293 DOI: 10.11949/0438-1157.20200336. DOI：

摘要

为解决传统湿法脱硫工艺中有机硫脱除效率低、副产物多等问题，依托配方型溶剂脱硫工艺，以聚乙二醇二甲醚（NHD）、

-甲基二乙醇胺（MDEA）和水为原料构建新型湿法催化水解羰基硫（COS）脱硫体系。优化复配溶剂组成比例，确立配方溶剂组成为25% MDEA/15% H

O/60% NHD，考察了脱硫操作参数、反应温度、气体浓度、气体流量等因素对脱硫的影响，使用气相色谱和离子色谱分析探究脱硫过程及反应动力学。结果表明，在低温（298.15~343.15 K）、常压条件下对COS的脱除效率达80%以上；复配溶液将吸收后的COS催化水解为H

S和CO

，吸收过程符合准一级反应动力学。该脱硫液中有机溶剂含量占85%以上，可解决脱硫副产物产生多和碱耗大的问题，是一种新型有机介质脱硫工艺。

Abstract

To solve the problems of lower removal efficiency of organic sulfide and large amount of by-products in the traditional wet desulfurization process

a novel wet catalytic hydrolysis system of carbonyl sulfide was developed. The system was constr

ucted with application of polyethylene glycol dimethyl ether (NHD)

-methyldiethanolamine (MDEA)

and water as desulfurization agent with optimal compositions of 25% MDEA/15% H

O/60% NHD. The effect of the desulfurization operation parameters

reaction temperature

gas concentration and gas flow rate on the desulfurization of COS was investigated. Furthermore the possible mechanism and kinetic of the desulfurization process were proposed and determined in reference of the results of GC and IC. The results show that the removal efficiency of COS is above 80% under low temperature (298.15—343.15 K) and normal pressure. The absorption process conforms to pseudo-first-order reaction kinetics. The organic solvent contents in the developed desulfurization system is more than 85%

which can effectively avoid the production of by-products and consumption of alkali in the desulfurization system

and is expected to be treated as an alternative for COS removal with high desulfurization efficiency.

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references

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Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H2O

DOI：10.11949/0438-1157.20200336

摘要

Abstract

关键词

Keywords

references

Catalytic hydrolysis of carbonyl sulfide with application of NHD/MDEA/H₂O