Working principle and technical analysis of dechlorination through extracting from desulfurization wastewater

XIE Zengxiao; LIU Yang; DING Zhongyu; XU Fang; WANG Chenxu; LI Hongjiao; MA Xiaoying; MA Shuangchen

doi:10.19666/j.rlfd.202003052

English

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Working principle and technical analysis of dechlorination through extracting from desulfurization wastewater

Thermal Power Generation Vol. 50, Issue 2, Pages: 104-109(2021)

更新时间：2025-09-28

- Working principle and technical analysis of dechlorination through extracting from desulfurization wastewater
- 作者机构：
  
  1. 浙江浙能中煤舟山煤电有限责任公司
  2. 华北电力大学环境科学与工程系
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202003052
  CLC： X773
- Published：2021
- 稿件说明：
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XIE Zengxiao, LIU Yang, DING Zhongyu, et al. Working principle and technical analysis of dechlorination through extracting from desulfurization wastewater[J]. Thermal Power Generation, 2021, 50(2): 104-109.
DOI：

XIE Zengxiao, LIU Yang, DING Zhongyu, et al. Working principle and technical analysis of dechlorination through extracting from desulfurization wastewater[J]. Thermal Power Generation, 2021, 50(2): 104-109. DOI： 10.19666/j.rlfd.202003052.

摘要

萃取法脱氯因其具有低成本、副产物可综合利用等优势

发展前景良好。目前

萃取法脱氯在冶金、石油化工等领域均有应用案例

所选用的萃取剂多以有机胺为主体;萃取脱氯的关键在于萃取剂的利用率以及萃取剂的再生效率。本文以燃煤电厂湿法脱硫(FGD)工艺中的脱硫废水为研究对象

通过高效萃取剂配方的筛选、萃取脱氯过程的程序化控制、萃取剂的再生和副产物的综合利用等有效措施

采用萃取法处理实现脱硫废水中高浓度氯离子的有效脱除。

Abstract

Extraction dechlorination has a good prospect due to its advantages of low cost and comprehensive utilization of by-products. At present

extraction dechlorination has been applied in metallurgy

petrochemical industry and other fields

where organic amines are the main extractants used. The key of extraction dechlorination lies in the utilization of extractant and the regeneration efficiency of extractant. This article regards the desulfurization wastewater in wet desulfurization(FGD) process in coal-fired power plants as the research object

achieves effective removal of high concentration of chloride ion in the desulfurization wastewater through effective approaches such as screening of effective extractant formula

extraction process of dechlorination of procedural control

regeneration of the extraction agent

and comprehensive utilization of by-products.

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