2×300 MW机组尿素SNCR脱硝工程设计及应用

doi:10.11930/j.issn.1004-9649.2016.04.006.06

中国电力 ›› 2016, Vol. 49 ›› Issue (4): 6-11.DOI: 10.11930/j.issn.1004-9649.2016.04.006.06

2×300 MW机组尿素SNCR脱硝工程设计及应用

梁磊

江苏一环集团有限公司,江苏宜兴 214206

收稿日期:2015-10-10 修回日期:2016-04-27 出版日期:2016-04-20 发布日期:2016-04-27
作者简介:梁磊(1984-),男,安徽亳州人,工学硕士,工程师,从事烟气脱硫、脱硝工程研发、设计及调试工作。E-mail: sgh-163163@163.com

Design and Application of 2 × 300 MW Units Urea SNCR Denitrification Engineering

LIANG Lei

JiangsuYihuan Group Co., Ltd., Yixing 214206, China

Received:2015-10-10 Revised:2016-04-27 Online:2016-04-20 Published:2016-04-27

摘要/Abstract

摘要： 结合新疆某电厂2×300 MW机组尿素SNCR烟气脱硝工程设计实例,详细阐述了尿素SNCR烟气脱硝系统各主要单元的工艺流程及相关设备选型选材,介绍了喷枪布置依据及系统运行效果,并分析了氨水SNCR脱硝工艺和尿素SNCR脱硝工艺运行、投资费用。实践结果表明,尿素/NOx摩尔比为0.5、原烟气NOx质量浓度(标准状态)为178~187 mg/m3时,脱硝效率可稳定在50%以上,逃逸氨质量浓度(标准状态)为1.2~1.9 mg/m3,满足环保排放标准和设计要求。

关键词: 尿素, SNCR, 烟气脱硝, 除盐水, 喷枪

Abstract: Taking the design of urea SNCR flue gas denitrification project for 2×300 MW units in a power plant in Xinjiang as an example, this paper presents in details the workflow process of major component units and related equipment and material selection of the urea SNCR flue gas denitrification system. It also introduces the fundamental basis of spray gun layout design and the system operation effects. Finally the investment and operation costs of the ammonia SNCR denitrification technology as well as the urea SNCR denitrification technology are analyzed. The operation practice results show that when the urea/NOx mole ratio is 0.5, and the original flue gas NOx concentration ranges between 178~187 mg/m3, the denitrification efficiency can be stabilized at more than 50% with the escape ammonia concentration of only 1.2~1.9 mg/m3, meeting the environmental protection standard and design requirement with .the escape ammonia concentration only 1.2~1.9 mg/m3.

Key words: urea, SNCR, flue gas denitrification, desalted water, spray gun

中图分类号:

TK284
X51

梁磊. 2×300 MW机组尿素SNCR脱硝工程设计及应用[J]. 中国电力, 2016, 49(4): 6-11.

LIANG Lei. Design and Application of 2 × 300 MW Units Urea SNCR Denitrification Engineering[J]. Electric Power, 2016, 49(4): 6-11.

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https://www.electricpower.com.cn/CN/Y2016/V49/I4/6

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2×300 MW机组尿素SNCR脱硝工程设计及应用

Design and Application of 2 × 300 MW Units Urea SNCR Denitrification Engineering

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2×300 MW机组尿素SNCR脱硝工程设计及应用

Design and Application of 2 × 300 MW Units Urea SNCR Denitrification Engineering

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