中国电力 ›› 2016, Vol. 49 ›› Issue (8): 135-139.DOI: 10.11930/j.issn.1004-9649.2016.08.135.05

• 节能与环保 • 上一篇    下一篇

燃煤电厂烟气汞减排技术研究与实践

史晓宏12,张翼2,赵瑞1,陈创社1   

  1. 1. 神华国华北京电力研究院有限公司,北京 100025;
    2. 三河发电有限责任公司,河北 三河 065201
  • 收稿日期:2016-03-28 出版日期:2016-08-10 发布日期:2016-08-12
  • 通讯作者: 国家科技支撑计划资助项目(2015BAA05B02);国家环境保护公益性行业科研专项基金资助项目(200909024)
  • 作者简介:史晓宏(1971—),女,吉林东丰人,高级工程师,从事火力发电厂环境保护方面的工作。

Research and Practice of Flue Gas Mercury Reduction Technology in Coal-Fired Power Plants

SHI Xiaohong12, ZHANG Yi2, ZHAO Rui1, CHEN Chuangshe1   

  1. 1. Shenhua Guohua Beijing Electric Power Research Institute Co., Ltd., Beijing 100025, China;
    2. Sanhe Power Generation Co., Ltd., Sanhe 065201, China
  • Received:2016-03-28 Online:2016-08-10 Published:2016-08-12
  • Contact: This work is supported by the National Key Technology R&D Program of China(No. 2015BAA05B02); National Environmental Protection Public Welfare Industry Research Special Fund of Ministry of Environmental Protection of China (No. 200909024).

摘要: 为掌握燃煤电厂烟气汞排放的控制技术,三河电厂在300 MW燃煤机组上开展了烟气汞减排技术的研究,开展炉前煤中添加溴化钙脱汞、静电除尘器前喷射活性炭脱汞、溴化钙添加与普通活性炭协同脱汞和静电除尘器前喷射改性飞灰脱汞等4种脱汞技术研究。研究结果显示,各种脱汞技术都有较好的脱汞效率;入炉煤添加溴化钙脱汞效率达到77.5%,运行费用最低;静电除尘器前喷射溴化活性炭脱汞技术脱汞效率可达到92.6%,运行成本最高。

关键词: 燃煤电厂, 烟气脱汞, 溴化钙, 活性炭, 飞灰

Abstract: In order to master the technology of flue gas mercury emission control in coal-fired power plants, the Sanhe Power Plant conducts the study on flue gas mercury emission reduction. In the study, four kinds of technologies are used on flue gas mercury removal. They are adding calcium bromide(CaBr2) to the as-fired coal, injecting activated carbon before the flue gas enters the electrostatic precipitators(ESP), adopting the co-mercury removal technology with CaBr2 and ordinary activated carbon, and modifying the fly ash before it enters the ESP. The study results show that all the four technologies have good mercury removal efficiency, among which the efficiency of adding CaBr2 to feed coal reaches as much as 77.5% with the lowest operating costs; while that of co-mercury removal technology with CaBr2 and ordinary activated carbon can even reach 92.6% but with the highest operating costs.

Key words: coal-fired power plant, flue gas mercury removal, calcium bromide, activated carbon, fly ash

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