Difficulties and countermeasures of SCR denitration system operation in ultra low emission situation

WANG Lele; KONG Fanhai; HE Jinliang; FANG Zhaojun; YANG Xun; LEI Siyuan; YAO Yan; YANG Xiaoning

English

您当前的位置：

首页 >

文章列表页 >

Difficulties and countermeasures of SCR denitration system operation in ultra low emission situation

Thermal Power Generation Issue 11, (2016)

更新时间：2025-09-28

- Difficulties and countermeasures of SCR denitration system operation in ultra low emission situation
- 作者机构：
  
  西安热工研究院有限公司苏州分公司,江苏,苏州,215153
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701
- Published Online：24 November 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
WANG Lele, KONG Fanhai, HE Jinliang, et al. Difficulties and countermeasures of SCR denitration system operation in ultra low emission situation[J]. Thermal Power Generation, 2016, (11).
DOI：

WANG Lele, KONG Fanhai, HE Jinliang, et al. Difficulties and countermeasures of SCR denitration system operation in ultra low emission situation[J]. Thermal Power Generation, 2016, (11). DOI：

摘要

针对超低排放形势下选择性催化还原(SCR)脱硝系统运行过程中出现的NOx排放超限、空气预热器硫酸氢铵堵塞加重等问题

分析其主要与超低排放对SCR反应器中NH3/NOx分布的均匀性要求提高

SO2/SO3转化率升高

喷氨优化控制要求提高

最低喷氨温度升高及催化剂寿命管理更加复杂等有关。对此

提出了通过喷氨优化调整和流场优化改造改善NH3/NOx分布均匀性

减少催化剂的用量及钒含量控制SO2/SO3转化率

降低脱硝系统入口喷氨量、SO3质量浓度或设备改造来拓宽低负荷脱硝运行范围

通过喷氨控制系统优化降低NOx排放超标及过量喷氨的风险

采取有效的催化剂寿命管理延长催化剂使用寿命、降低废催化剂产生量等解决方案。对实现燃煤电厂SCR脱硝系统的安全、高效及经济运行具有指导意义。

Abstract

关键词

Keywords

references

Views

1128

下载量

CSCD

Alert me when the article has been cited

提交

Publicity Resources

Ultra-low emission reform and its influence on the plant’s electricity supply cost

Countermeasures for SCR denitration system of coal-fired unit during low-load operation

An improved online NOx prediction model based on LSSVM

Economic research on desulfurization and denitration for a supercritical 350 MW circulating fluidized bed boiler

Experimental study on fine particle emission characteristics of ultra-low emission coal-fired units

Related Author

CUI Liming

MENG Lixia

YUAN Hong

ZHANG Feiran

ZHOU Keyi

XU Qi

YAO Yushan

DING Xuda

Related Institution

Shenhua Group Co., Ltd.

China Energy Conservation and Emission Reduction Co., Ltd.

Shenhua Guohua Electric Power Research Center

School of Energy & Environment,Southeast University

School of Control and Computer Engineering, North China Electric Power University

AI问答

⁰