燃煤机组超低排放改造后SCR烟气脱硝中硫酸氢铵的控制技术

doi:10.3969/j.issn.1008-0198.2022.05.018

湖南电力 ›› 2022, Vol. 42 ›› Issue (5): 101-106.doi: 10.3969/j.issn.1008-0198.2022.05.018

燃煤机组超低排放改造后SCR烟气脱硝中硫酸氢铵的控制技术

赵光耀, 黄权浩, 朱映健, 杜胜祥

广东电力发展股份有限公司沙角A电厂,广东东莞 523936

收稿日期:2022-04-02 修回日期:2022-05-27 出版日期:2022-10-25 发布日期:2022-11-16
作者简介:赵光耀(1965),广东潮阳人,学士,工程师,研究方向为污染物的达标排放。

Control Technology of Ammonium Bisulphate In Denitrification of SCR Flue Gas after Ultra-Low Emission Transformation of Coal-Fired Unit

ZHAO Guangyao, HUANG Quanhao, ZHU Yingjian, DU Shengxiang

Guangdong Energy Group Co., Ltd., Shajiao A power plant, Dongguan 523936,China

Received:2022-04-02 Revised:2022-05-27 Online:2022-10-25 Published:2022-11-16

摘要/Abstract

摘要： 介绍硫酸氢铵生成机理,指出硫酸氢铵对锅炉设备的危害,分析硫酸氢铵生成的影响因素,结合实际运行过程,研究超低排放改造后硫酸氢铵对锅炉设备的危害,并根据硫酸氢铵的特性提出具体控制硫酸氢铵生成量的方法。

关键词: 燃煤机组, 超低排放, 烟气脱硝, 硫酸氢铵, NH₃/NO_x摩尔比

Abstract: This paper introduces the mechanism of ammonium bisulfate generation, points out the harm of ammonium bisulfate to boiler equipment, analyzes the influencing factors of ammonium bisulfate generation, studies the harm of ammonium bisulfate to boiler equipment after ultra-low emission transformation, and puts forward specific methods to control the amount of ammonium bisulfate generation according to its characteristics.

Key words: coal-fired units, ultra-low emissions, flue gas denitrification, ammonium bisulphate, mole ratio of NH₃/NO_x

中图分类号:

X701

赵光耀, 黄权浩, 朱映健, 杜胜祥. 燃煤机组超低排放改造后SCR烟气脱硝中硫酸氢铵的控制技术[J]. 湖南电力, 2022, 42(5): 101-106.

ZHAO Guangyao, HUANG Quanhao, ZHU Yingjian, DU Shengxiang. Control Technology of Ammonium Bisulphate In Denitrification of SCR Flue Gas after Ultra-Low Emission Transformation of Coal-Fired Unit[J]. Hunan Electric Power, 2022, 42(5): 101-106.

参考文献

[1]Nenad S. Improving the Performance of Boiler Auxiliaries, PartII[J]. Coal Power, 2011, 2:1-35.
[2]J Menasha, D Dunn-Rankin,L Muzio, et al.Ammonium bisulfate formation temperature in a bench-scale single-channel air preheater[J]. Fuel,2011, 90(7): 2445-2453.
[3]Farthing W E, Walsh P M.Identification of (and Responses to) potential effects of SCR and wet scrubbers on submicron particulate emissions and plum characteristics[R]. Alabama:Southern Research Insititute, 2004.
[4]C Chothani. Ammonium Bisulfate Measurement for SCR NOx Control and Air Heater Protection[R]. Carnegie:Breen Energy Solution, 2008.
[5]Richard T Wilburn, Thomas L Wright. SCR Ammonia Slip Distribution in Coal Plant Effluents and Dependence upon SO3[J]. Power Plant Chemistry,2004, 6(5):295-304.
[6]张强, 许世森, 王志强. 选择性催化还原烟气脱硝技术进展及工程应用[J]. 热力发电, 2004, 33(4): 1-6.
[7]吴碧君, 王述刚, 方志星,等. 烟气脱硝工艺及其化学反应原理分析[J]. 热力发电, 2006(11):59-60,64,77.
[8]范红梅,仲兆平,金保升,等. V₂O₅-WO₃/TiO₂催化剂氨法SCR脱硝反应动力学研究[J].燃料化学学报, 2006.34(3): 377-380.
[9]N Y Topsoe. Catalysis for NOX Abatement[J] Cattech. 1997(12):125-134.
[10]李高磊. 超低排放燃煤电厂SO₃生成及控制的试验研究[D].武汉:华中科技大学,2019.
[11]Dong Ye,Ruiyang Qu, Hao Song, et al. New insights into the various decomposition and reactivity behaviors of NH₄HSO₄ with NO on V₂O₅/TiO₂ catalyst surfaces[J]. Chemical Engineering Journal, 2016, 283:846-854.
[12]M Anstrom,Nan-Yu Topse,JA Dumesic.Density functional theory studies of mechanistic aspects of the SCR reaction on vanadium OXide catalysts[J].Journal of catalysis 2003.213(2):115-125.
[13]马双忱, 金鑫, 孙云雪, 等. SCR 烟气脱硝过程硫酸氢铵的生成机理与控制[J].热力发电, 2010, 39(8): 12-17.
[14]L HiIus, C Miller. In Situ Device For Real-Time Catalyst Deactivation Measurements[R].California:2007.
[15]Kamata H, Ohara H, Takahashi K, et al. SO₂ OXidation over the V₂O₅/TiO₂ SCR catalyst[J]. Catalysis Letters, 2001, 73(1): 79-83.
[16]束航, 张玉华, 范红梅, 等. SCR脱硝中催化剂表面NH₄HSO₄生成及分解的原位红外研究[J]. 化工学报, 2015, 66(11): 4460-4468.
[17]马大卫,何军,张其良,等.SCR脱硝系统性能及空气预热器阻力上升分析[J].中国电力,2019,52(6):187-192.
[18]Pan Li, Liu Q, Liu Zhenyu. Behaviors of NH₄HSO₄ in SCR of NO by NH₃ over different cokes[J]. Chemical Engineering Journal, 2012, 181-182: 169-173.
[19]Zhu Zhengping, Hongxian Niu,Zhengyu Liu, et al. Decomposition and reactivity of NH₄HSO₄ on V₂O₅/AC catalysts used for NO reduction with ammonia[J]. Journal of Catalysis, 2000, 195(2): 268-278.
[20]赵宗让, 电厂锅炉SCR烟气脱硝系统优化设计[J].中国电力, 2005.38(11) :69-74.
[21]黄权浩,赵光耀,兰艳旭,等.脱硝系统流场优化在330 MW机组上的实践[J].浙江电力,2021,40(8):102-106.
[22]毛剑宏.大型电站锅炉SCR烟气脱硝系统关键技术研究[D].杭州:浙江大学,2013.

燃煤机组超低排放改造后SCR烟气脱硝中硫酸氢铵的控制技术

Control Technology of Ammonium Bisulphate In Denitrification of SCR Flue Gas after Ultra-Low Emission Transformation of Coal-Fired Unit

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价