3种烟气脱硝工艺技术经济比较分析

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3种烟气脱硝工艺技术经济比较分析

技术经济综述 | 更新时间：2025-09-28

- 3种烟气脱硝工艺技术经济比较分析
- COMPARISON AND ANALYSIS IN TECHNO-ECONOMIC ASPECTS FOR THREE KINDS OF FLUE GAS DENITRIFICATION TECHNOLOGIES
- 热力发电 2011年40卷第6期页码：1-3
- 作者机构：
  
  中国水利电力物资有限公司
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： X701
- 纸质出版：2011
- 稿件说明：
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项昆. 3种烟气脱硝工艺技术经济比较分析[J]. 热力发电, 2011,40(6):1-3.

XIANG Kun China National Water Resources and Electric Power Material and Equipement Co Ltd. COMPARISON AND ANALYSIS IN TECHNO-ECONOMIC ASPECTS FOR THREE KINDS OF FLUE GAS DENITRIFICATION TECHNOLOGIES[J]. Thermal power generation, 2011, 40(6): 1-3.
项昆. 3种烟气脱硝工艺技术经济比较分析[J]. 热力发电, 2011,40(6):1-3. DOI：

XIANG Kun China National Water Resources and Electric Power Material and Equipement Co Ltd. COMPARISON AND ANALYSIS IN TECHNO-ECONOMIC ASPECTS FOR THREE KINDS OF FLUE GAS DENITRIFICATION TECHNOLOGIES[J]. Thermal power generation, 2011, 40(6): 1-3. DOI：

摘要

目前烟气脱硝工艺主要有选择性催化还原法(SCR)、选择性非催化还原法(SNCR)和SNCR-SCR混合法

简要介绍这3种工艺的反应原理、工艺特点

并对其进行了技术经济对比分析。结果表明:(1)对NOx脱除效率要求较高时

采用SCR工艺最经济;(2)新建机组采用SCR工艺脱硝比较合适;(3)机组改造可以采用SNCR或SNCR-SCR方案;(4)SNCR-SCR混合工艺兼有SNCR和SCR技术的优点

对NOx脱除效率要求不很高时

宜采用SNCR-SCR工艺。

Abstract

At present

the main flue gas denitriflaction technologies are:selective catalystic reduction(SCR) method

selective non-catalystic reduction(SNCR) method

and the mixed method of SCR and SNCR.The working principle and technological features of said three denitrification technologies have been presented

and their comparison and analysis in techno-economic aspects being carried out.Results of comparison and analysis show that:(1)the SCR technology is the most economic one under condition of requiring higher denitrification efficiency:(2)the SCR denitrification technology is comparatively sultable to newly constructed units;(3)the SNCR and mixed scheme of SNCR and SCR can be used for retrofitted units;(4)the mixed technology of SNCR and SCR has advantages of SNCR and SCR technology

it is suitable to adopt for units requiring not very high denifitication efficiency.

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