Experiment and analysis of ammonia escape from decarburization absorbent inhibited by NHD

MA Shuangchen; SUN Yunxue; CUI Jiwei; ZHAO Yi

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Experiment and analysis of ammonia escape from decarburization absorbent inhibited by NHD

更新时间：2025-12-10

- Experiment and analysis of ammonia escape from decarburization absorbent inhibited by NHD
- CIESC Journal Issue 5, Pages: 1408-1413(2011)
- 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：
  CLC：
- Online First：05 May 2011，
  
  Published：05 May 2011
- 稿件说明：
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MA Shuangchen, SUN Yunxue, CUI Jiwei, et al. Experiment and analysis of ammonia escape from decarburization absorbent inhibited by NHD[J]. CIESC Journal, 2011, (5): 1408-1413.
DOI：

MA Shuangchen, SUN Yunxue, CUI Jiwei, et al. Experiment and analysis of ammonia escape from decarburization absorbent inhibited by NHD[J]. CIESC Journal, 2011, (5): 1408-1413. DOI：

摘要

CO2作为主要的温室气体，其减排问题引起全球范围的广泛关注，开展适合我国国情的燃煤电厂CO2减排技术研究至关重要。氨法脱除电厂烟气中CO2具有低成本、高脱除效率等特点，但该技术面临的一个很大问题是氨的逃逸。针对氨法脱碳过程中氨逃逸问题展开实验研究，采用鼓泡吸收反应器研究了聚乙二醇二甲醚（NHD）对氨逃逸的抑制效果以及氨水和NHD浓度对氨逃逸的影响，并分析了NHD抑制氨逃逸的机理。结果表明，NHD对氨逃逸具有一定的抑制作用，同时在一定程度上提高了脱碳效率。添加5%NHD后，氨逃逸量降低24.86%，CO2的脱除效率增加10%左右。研究结果对进一步开展氨法捕集CO2研究有较大的参考价值。

Abstract

CO2 is the most important greenhouse gas，and reducing its emission has caught wide attention.It is very important to develop CO2 capture technology for coal-fired power plants

which account for major greenhouse gas emission in China.Using ammonia solution to absorb CO2 from flue gas is expected to realize low cost and high efficiency. However

this technology faces a problem of escape of ammonia.This paper focuses on the problem of ammonia escape in ammonia decarburization process

through a series of experiments on NHD(polyethylene glycol dimethy ether)inhibiting effects in bubbling absorption of ammonia.The impacts of NHD and ammonia concentrations on ammonia escape were studied

and NHD inhibition mechanism of ammonia escape was analyzed.The results showed that NHD showed inhibition for ammonia escape and enhanced removal of CO2 at the same time.The amount of escaping ammonia was reduced by 24.86% and the removal efficiency for CO2 increased by about 10% when 5% NHD was added to decarburization solution.The results could provide reference for further research of ammonia method to capture CO2.

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