Experimental study on mercury removal by oxidation in a coal-fired boiler

ZHONG Li; XIAO Ping; JIANG Jianzhong; GUO Tao; MEI Zhenfeng

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Experimental study on mercury removal by oxidation in a coal-fired boiler

Thermal Power Generation Issue 1, (2016)

更新时间：2025-09-28

- Experimental study on mercury removal by oxidation in a coal-fired boiler
- 作者机构：
  
  1. 中国华能集团清洁能源技术研究院有限公司国家能源煤炭清洁低碳发电技术研发(实验)中心,北京,102209
  2. 中国华能集团公司,北京,100031
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published Online：15 February 2016，
  
  Published：2016
- 稿件说明：
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ZHONG Li, XIAO Ping, JIANG Jianzhong, et al. Experimental study on mercury removal by oxidation in a coal-fired boiler[J]. Thermal Power Generation, 2016, (1).
DOI：

ZHONG Li, XIAO Ping, JIANG Jianzhong, et al. Experimental study on mercury removal by oxidation in a coal-fired boiler[J]. Thermal Power Generation, 2016, (1). DOI：

摘要

在燃煤锅炉上新建立了一套炉前加入卤化物添加剂的全烟气氧化协同脱汞系统

对入炉煤、炉底渣、飞灰、脱硫石膏、脱硫废水和排放烟气进行了脱汞前、后全口径汞平衡测量

并采用吸附管离线采样法测量了湿法脱硫(WFGD)前、后的烟气总汞量和分形态汞含量分布。采用添加卤化物的氧化协同脱汞技术在最佳添加剂Br/Hg摩尔比为3 670下

持续运行1年后的结果表明:在入炉煤中加入卤化物添加剂后

脱硫前烟气中Hg2+的质量分数由30％升至80％；飞灰和WFGD的脱汞量分别增加了0.9和1.5倍；整体脱汞效率从33％升至90％

烟气排放的汞质量浓度从2.21 μg/m3降至0.26 μg/m3；而投运成本仅增加了0.05分/(kW・h)。

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