液相共存成分对双极膜电解吸氨法脱碳富液的影响

马双忱; 韩停停; 马京香; 马岚; 陈公达; 杨静; 陈凡

doi:10.11949/j.issn.0438-1157.20150971

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液相共存成分对双极膜电解吸氨法脱碳富液的影响

能源和环境工程 | 更新时间：2025-12-10

- 液相共存成分对双极膜电解吸氨法脱碳富液的影响
- Effect of liquid coexistent components on ammonia decarbonization solution desorption using bipolar membrane electrodialysis
- 化工学报 2015年第12期页码：5067-5078
- 作者机构：
  
  华北电力大学环境学院,河北,保定,071003
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150971
  中图分类号： 511
- 网络首发：2015-12-05，
  
  纸质出版：2015-12-05
- 稿件说明：
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马双忱, 韩停停, 马京香, 等. 液相共存成分对双极膜电解吸氨法脱碳富液的影响[J]. 化工学报, 2015,(12):5067-5078.

MA Shuangchen, HAN Tingting, MA Jingxiang, et al. Effect of liquid coexistent components on ammonia decarbonization solution desorption using bipolar membrane electrodialysis[J]. CIESC Journal, 2015, (12): 5067-5078.
马双忱, 韩停停, 马京香, 等. 液相共存成分对双极膜电解吸氨法脱碳富液的影响[J]. 化工学报, 2015,(12):5067-5078. DOI： 10.11949/j.issn.0438-1157.20150971.

MA Shuangchen, HAN Tingting, MA Jingxiang, et al. Effect of liquid coexistent components on ammonia decarbonization solution desorption using bipolar membrane electrodialysis[J]. CIESC Journal, 2015, (12): 5067-5078. DOI： 10.11949/j.issn.0438-1157.20150971.

摘要

考察了烟气中SO2、NOx和CO2与NH3·H2O的反应机理以及双极膜电解吸的机理

对本文自制实验系统的操作工况进行了进一步的调整

探究了氨法脱碳吸收富液双极膜电解吸的一般规律

研究了模拟解吸液解吸过程中主要液相共存成分

如(NH4)2SO3、(NH4)2SO4、NH4NO3、NaCl和NH4Cl对CO2双极膜电解吸的影响。研究表明

液相共存成分种类、质量分数、pH、表面张力等对CO2的双极膜电解吸均能产生一定影响。少量NaCl、NH4Cl和(NH4 )2SO4成分的共存对吸收富液的电解吸是有利的

且对电解吸的影响程度为NaCl> NH4Cl> (NH4)2SO4;吸收富液中应该极力避免(NH4)2SO3成分的存在;NH4NO3成分的共存对脱碳富液电解吸的影响不大。因此

在碳捕集前应对烟气中的杂质成分进行脱除

减少其对解吸液理化特性以及双极膜电解吸的影响。

Abstract

The reaction mechanisms of SO2

NOx and CO2 in flue gas with ammonia solution and desorption mechanism of bipolar membrane electrodialysis were described. Furthermore

the operation conditions of self-dissembled experimental system were adjusted and the desorption general rules of ammonia decarbonization solution using bipolar membrane electrodialysis were explored. There were many major liquid coexisting components in rich solution after ammonia decarbonization

such as (NH4)2SO3

(NH4)2SO4

NH4NO3

NaCl and NH4Cl. Impacts of these major liquid coexisting components on bipolar membrane electrodialysis were studied. Researches have shown that types of liquid coexisting components

mass fraction

pH values and surface tension all can have an impact on the bipolar membrane electrodialysis. Small amounts of NaCl

NH4Cl and (NH4 )2SO4 were good to electrodialysis of absorbing solution

and the effecting degree on electricity desorption was NaCl> NH4Cl> (NH4)2SO4. Existence of (NH4)2SO3 should be avoided in absorption rich solution. Coexistence of NH4NO3 had no significant impact on the electrodialysis of rich solution after ammonia decarbonization.

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