中国电力 ›› 2016, Vol. 49 ›› Issue (7): 168-172.DOI: 10.11930/j.issn.1004-9649.2016.07.168.05

• 节能与环保 • 上一篇    下一篇

燃煤电厂运行中脱硝催化剂的性能检测评价与分析

晏敏1, 赵凯2, 朱跃1   

  1. 1. 华电电力科学研究院,浙江 杭州 310030;
    2. 华电天津军粮城发电有限公司,天津 300301
  • 收稿日期:2015-11-16 出版日期:2016-07-20 发布日期:2016-07-28
  • 作者简介:晏敏(1982—),女,江西上高人,硕士,工程师,主要从事火电厂烟气脱硫脱硝方面的研究。E-mail: yanmin0606@163.com

Performance Assessment and Analysis of Denitration Catalyst in Coal-Fired Power Plant

YAN Min1, ZHAO Kai2, ZHU Yue1   

  1. 1. China Huadian Electric Research Institute, Hangzhou 310030, China;
    2. Huadian Tianjin Junliangcheng Power Generation Co., Ltd., Tianjin 300301, China
  • Received:2015-11-16 Online:2016-07-20 Published:2016-07-28

摘要: 选择性催化还原(SCR)脱硝催化剂的性能直接影响SCR脱硝系统的脱硝效率和运行状况。对某燃煤电厂SCR脱硝装置系统运行28 000 h催化剂的外观、理化特性和工艺特性进行了检测与分析。结果表明,该催化剂整体性能保持较好,但其活性与新催化剂活性之比K/K0值已低于催化剂化学寿命期满时的阈值,为满足脱硝系统的达标排放,需及时更换催化剂或对催化剂进行再生处理。根据运行中脱硝催化剂的性能检测与分析结果,对脱硝系统的优化和经济运行提出了合理的建议。

关键词: 燃煤电厂, 脱硝催化剂, 性能检测, 催化剂管理

Abstract: The performance of the denitration catalyst could affect the efficiency and operation behavior of SCR system directly. In this paper, the exterior appearance as well as the physicochemical and operational characteristics of the denitration catalyst are tested after 28 000-h operation in a coal-fired power plant. The results show that the overall performance of the catalyst is well maintained, but the ratio of its activity to that of fresh one i.e. K/K0 is lower than the threshold value of the lifespan. In order to satisfy the NOx discharge up to the standard, the catalyst should be replaced or regenerated in time. Based on these test results, the suggestions on the denitration system optimization and economic operation are proposed.

Key words: coal-fired power plant, denitration catalyst, determination of characterization, catalyst management

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