Comparison of absorption efficiency of three hydrogen sulfide absorbents and optimization of absorption conditions of potassium iodate system

Xue LYU; Yue MOU; Yiwen MIU; Hanlu LIAO; Jiansu RAN; Jie ZHENG

doi:10.11949/0438-1157.20191151

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Comparison of absorption efficiency of three hydrogen sulfide absorbents and optimization of absorption conditions of potassium iodate system

Separation engineering | 更新时间：2025-11-25

- Comparison of absorption efficiency of three hydrogen sulfide absorbents and optimization of absorption conditions of potassium iodate system
- CIESC Journal Vol. 71, Issue 10, Pages: 4696-4703(2020)
- 作者机构：
  
  重庆大学化学化工学院，重庆 401331
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20191151
  CLC： TQ 125.1
- Received：19 October 2019，
  
  Revised：2019-11-18，
  
  Published：05 October 2020
- 稿件说明：
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吕雪, 牟玥, 缪逸文, 廖寒露, 冉建速, 郑杰. 三种硫化氢吸收剂吸收效率对比及碘酸钾体系吸收条件优化研究[J]. 化工学报, 2020, 71(10): 4696-4703

LYU Xue, MOU Yue, MIU Yiwen, LIAO Hanlu, RAN Jiansu, ZHENG Jie. Comparison of absorption efficiency of three hydrogen sulfide absorbents and optimization of absorption conditions of potassium iodate system[J]. CIESC Journal, 2020, 71(10): 4696-4703
吕雪, 牟玥, 缪逸文, 廖寒露, 冉建速, 郑杰. 三种硫化氢吸收剂吸收效率对比及碘酸钾体系吸收条件优化研究[J]. 化工学报, 2020, 71(10): 4696-4703 DOI： 10.11949/0438-1157.20191151.

LYU Xue, MOU Yue, MIU Yiwen, LIAO Hanlu, RAN Jiansu, ZHENG Jie. Comparison of absorption efficiency of three hydrogen sulfide absorbents and optimization of absorption conditions of potassium iodate system[J]. CIESC Journal, 2020, 71(10): 4696-4703 DOI： 10.11949/0438-1157.20191151.

摘要

硫化氢具有腐蚀性与毒性，采用吸收剂吸收硫化氢气体是重要的脱硫处理方式。不同的吸收剂在吸收效率上存在较大差别。首先对比了三氯化铁体系、碘酸钾体系和碱性铁氰化钾体系三种不同硫化氢吸收剂的吸收效率。在此基础上重点优化了碘酸钾体系吸收条件参数，讨论了包含浓度、温度、pH、气体流量及时间等因素对硫化氢吸收效率的影响。并建立了四因素三水平正交试验研究较优吸收条件，得到正交试验优化吸收条件为：温度55℃，pH 6.01，硫化氢流量0.3 L·min

-1

，吸收时间1 min，该条件下8%（质量）碘酸钾体系的三级吸收效率为51.56%。研究结果对硫化氢吸收处理提供了理论参考，也为间接电解法循环处理研究提供了支持。

Abstract

Hydrogen sulfide is corrosive and toxic

and the use of absorbents to absorb hydrogen sulfide gas is an important desulfurization treatment. The absorption efficiency of different absorbent is different. The absorption efficiency of three different hydrogen sulfide absorbent

namely ferric chloride system

potassium iodate system and alkaline potassium ferricyanide system

was firstly compared. Based on this

the absorption parameters of potassium iodate system were optimized

and the effects of concentration

temperature

gas flow rate and time on the hydrogen sulfide gas absorption efficiency were discussed. The optimum absorption conditions were obtained by orthogonal test: temperature 55℃

pH 6.01

S flow rate 0.3 L·min

-1

absorption time 1 min

the third-order absorption efficiency of 8%(mass) potassium iodate is 51.56%. The results of this study provide a theoretical reference for the absorption of hydrogen sulfide and support for the study of indirect electrolysis process.

关键词

Keywords

references

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