STUDY ON THE MECHNISM OF LOW NOx COMBUSTION CONCERNING PULVERIZED COAL

YAO Mingyu1; CHE Defu2; NIE Jianping1 1.Xi'an Thermal Power Research Institute Co Ltd

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STUDY ON THE MECHNISM OF LOW NOx COMBUSTION CONCERNING PULVERIZED COAL

更新时间：2025-09-28

- STUDY ON THE MECHNISM OF LOW NOx COMBUSTION CONCERNING PULVERIZED COAL
- Thermal Power Generation Vol. 40, Issue 11, Pages: 24-27(2011)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 西安交通大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK16
- Published：2011
- 稿件说明：
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YAO Mingyu1, CHE Defu2, NIE Jianping1 1.Xi'an Thermal Power Research Institute Co Ltd. STUDY ON THE MECHNISM OF LOW NOx COMBUSTION CONCERNING PULVERIZED COAL[J]. Thermal power generation, 2011, 40(11): 24-27.
DOI：

YAO Mingyu1, CHE Defu2, NIE Jianping1 1.Xi'an Thermal Power Research Institute Co Ltd. STUDY ON THE MECHNISM OF LOW NOx COMBUSTION CONCERNING PULVERIZED COAL[J]. Thermal power generation, 2011, 40(11): 24-27. DOI：

摘要

煤粉燃烧过程中NOx的排放主要来自于燃料氮的转化

如使燃料氮更多地向N2转化即可减少NOx的排放。因此

在燃烧初期

保证一个足够的热解阶段

在燃烧器上部保留一段还原区

挥发分和煤焦的交互作用以及深度空气分级燃烧与低NOx燃烧器的组合等

均有利于把NOx排放降低到较低水平。

Abstract

In the combustion process of pulverized coal

the emission of NOx is mainly occurred from conversion of nitrogen contained in the fuel

making more nitrogen contained in the fuel to be converted into N2

the NOx emission can be reduced.Therefore

in the initial time of combustion

a sufficient stage of pyrolysis has to be ensured

and a section of reduction zone above the burners has to be maintained.The reciprocity of volatile metters and coal char

as well as the combination of deep air-staged combustion with low NOx burners all are advantageous to reduce the NOx emission to a lower level.

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