中国电力 ›› 2014, Vol. 47 ›› Issue (4): 139-143.DOI: 10.11930/j.issn.1004-9649.2014.4.139.4

• 节能与环保 • 上一篇    下一篇

燃煤电厂SCR脱硝催化剂失活及其再生性能研究

刘红辉, 刘伟, 黄锐, 袁鹏, 席文昌, 黄新竹, 王刚   

  1. 重庆远达催化剂制造有限公司,重庆 401336
  • 收稿日期:2013-11-10 出版日期:2014-04-30 发布日期:2015-12-22
  • 作者简介:刘红辉(1968-),男,重庆人,工程师,从事火电厂SCR脱硝催化剂研究。E-mail: liuweicm@163.com
  • 基金资助:
    国家高技术研究发展计划(863计划)项目(2010AA065001); 中电投集团重点科技项目(2013-126-CQD-KJ-X); 重庆市集成示范计划项目(CSTC2013JCSF20001)

Study on Performance of Deactivated and Regenerated Catalysts for Coal-Fired Power Plant SCR Denitration

LIU Hong-hui, LIU Wei, HUANG Rui, YUAN Peng, XI Wen-chang, HUANG Xin-zhu, WANG Gang   

  1. Chongqing Yuanda Catalyst Manufacturing Co. Ltd., Chongqing 401336, China
  • Received:2013-11-10 Online:2014-04-30 Published:2015-12-22
  • Supported by:
    This work is supported by National High Technology Research and Development Program of China(863 Program 2010AA065001), Key Technology Projects of China Power Investment Corporation(2013-126-CQD-KJ-X), Integrated Demonstration Projects of Chongqing(CSTC2013JCSF20001)

摘要: 以某火电厂新鲜、失活和再生的SCR脱硝催化剂为研究对象,采用XRF、ICP、SEM-EDX、比表面积分析仪、压汞仪和XRD等表征手段,测试了催化剂单元的活性及SO2/SO3转化率;测试结果表明运行后的催化剂活性大幅度降低(从41.5 m/h 降低至29.5 m/h),分析了导致催化剂失活现象原因并制订了再生工艺;与新鲜催化剂相比,再生催化剂活性可恢复至新催化剂的99%(从29.5 m/h 升高至41.1 m/h)并较好地控制了其SO2/SO3转化率,再生催化剂微观结构及性能与新鲜催化剂基本一致。

关键词: 燃煤电厂, SCR催化剂, 失活, 再生

Abstract: The activity and SO2/SO3 conversion rate of catalyst units are tested for the fresh, deactivated and regenerated SCR catalysts used in a thermal power plant by means of XRF, ICP, SEM-EDX, BET, Mercury Porosimeter and XRD. The test results show that the activity of used catalysts greatly decreases (from 41.5 m/h to 29.5 m/h). The causes of deactivation are analyzed and the catalyst regeneration process is designed. Compared with the fresh SCR catalysts, the activity of regenerated catalysts can be recovered to 99% of that of the fresh ones (from 29.5 m/h up to 41.1 m/h), the SO2/SO3 conversion rate is well controlled, and the microstructure and properties are basically the same.

Key words: coal-fired power plant, SCR catalyst, deactivation, regeneration

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