中国电力2018，Vol.51Issue(5)：47-51,5.DOI:10.11930/j.issn.1004-9649.201612097
加装SCR脱硝装置对空预器冷端腐蚀的影响解析
Analysis of the Influence of the Added SCR Denitrification Unit on Cold End Corrosion of the Air Preheater
李超1
作者信息
- 1. 华电电力科学研究院东北分院,辽宁沈阳 110179
- 折叠
摘要
Abstract
Selective catalytic reduction technology is most widely used in the coal-fired power plant.Since some power plants have not retrofitted the air preheater in the process of denitration transformation,corrosion of the cold end components within the air preheater happens after a certain period of operation of the denitrification system.A 2 × 300 MW unit is taken as a case for this study to analyze the causes of the corrosion of the cold end components within the air preheater after the installation of the SCR denitrification.It concludes that the direct cause is the catalyst activity reduction some preventive measures and treatment suggestions are proposed from the operation management perspective.关键词
火电机组/空气预热器/冷端元件/腐蚀/硫酸氢铵/催化剂活性Key words
thermal power unit/air preheater/cold end element/corrosion/ammonium bisulfate (NH4HSO4)/catalyst activity分类
信息技术与安全科学引用本文复制引用
李超..加装SCR脱硝装置对空预器冷端腐蚀的影响解析[J].中国电力,2018,51(5):47-51,5.
