Effect of viscous fly ash on the SCR system design

JIN Lipeng1; WANG Yong2; SONG Yubao1; NIU Guoping1; ZHAO Junwu1; YANG Xun1 1.Xi'an Thermal Power Research Institute Co.

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Effect of viscous fly ash on the SCR system design

更新时间：2025-09-28

- Effect of viscous fly ash on the SCR system design
- Thermal Power Generation Vol. 42, Issue 8, Pages: 124-127(2013)
- 作者机构：
  
  1. 西安热工研究院有限公司苏州分公司
  2. 华能福州电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701
- Published：2013
- 稿件说明：
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JIN Lipeng1, WANG Yong2, SONG Yubao1, et al. Effect of viscous fly ash on the SCR system design[J]. Thermal power generation, 2013, 42(8): 124-127.
DOI：

JIN Lipeng1, WANG Yong2, SONG Yubao1, et al. Effect of viscous fly ash on the SCR system design[J]. Thermal power generation, 2013, 42(8): 124-127. DOI：

摘要

飞灰堵塞及对催化剂的物理冲蚀是造成脱硝装置性能恶化的最主要原因。对比2个选择性催化还原(SCR)烟气脱硝工艺设计案例

分析烟气流量、飞灰特性等参数在装置设计中的重要性。指出在对锅炉进行SCR脱硝改造设计时

应事先获得烟气流量、温度、飞灰含量、粒度分布及矿物组成等特性参数

并根据飞灰特性

着重于优化除灰、防堆积及防冲蚀磨损的设计。

Abstract

Catalyst abrasion and blockage by fly ash is the main reason for performance worsening of the SCR device.Two SCR flue gas denitrification process design cases were compared to investigate the significance of such parameters as flue gas flow

fly ash characteristics during SCR device design.It is pointed out that basic parameters like flue gas flow

temperature

fly ash

ash granular distribution and mineral composition should be obtained at first

and it is important to optimize the design of ash wiping

anti-deposition and anti-abrasion according to the fly ash characteristics.

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