Analysis of Impact of Ammonia-Coal Co-burning on Combustion in a Wall Type Tangentially-fired Boiler

YANG Kun; ZHANG Tao; PAN Haoxiang; DING Shifa

doi:10.19805/j.cnki.jcspe.2025.240223

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Analysis of Impact of Ammonia-Coal Co-burning on Combustion in a Wall Type Tangentially-fired Boiler

更新时间：2026-10-10

- Analysis of Impact of Ammonia-Coal Co-burning on Combustion in a Wall Type Tangentially-fired Boiler
- Chinese Journal of Power Engineering Vol. 45, Issue 6, Pages: 805-812(2025)
- 作者机构：
  
  上海发电设备成套设计研究院有限责任公司,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240223
  CLC： TM621.2
- Online First：16 June 2025，
  
  Published：2025
- 稿件说明：
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杨琨,张涛,泮浩翔,丁士发. 氨煤混烧对墙式切圆锅炉燃烧的影响分析动力工程学报, 2025, 45(6): 805-812 https://doi.

org/10.19805/j.cnki.jcspe.2025.240223
杨琨,张涛,泮浩翔,丁士发. 氨煤混烧对墙式切圆锅炉燃烧的影响分析动力工程学报, 2025, 45(6): 805-812 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240223.

org/10.19805/j.cnki.jcspe.2025.240223 DOI：

摘要

为验证燃煤机组掺烧大比例氨气的可行性

以某660 MW墙式切圆锅炉为例

建立数值模拟模型

分析氨气掺烧比例、氨气掺烧位置、一二次风配风方式对炉膛内燃烧的影响。结果表明:燃煤锅炉掺烧氨气会造成炉膛内烟气温度降低和NO

的质量浓度增加;氨气掺烧比例越大

烟气温度下降与NO

质量浓度增加的幅度越大;当氨气掺烧比例增加至40%时

炉膛内烟气的平均温度下降约50 K

出口NO

质量浓度升高29.4%;采取更高层燃烧器掺烧氨气和提高一次风比例等举措

可在保证氨煤充分燃烧的基础上

降低炉膛出口NO

质量浓度。

Abstract

In order to verify the feasibility of blending a large proportion of ammonia in a coal-fired unit

a numerical simulation model was established using a 660 MW wall type tangentially-fired boiler as an example. The impact of ammonia blending ratio

ammonia injection location

and primary and secondary air distribution methods on combustion in the furnace was analyzed. Results show that blending ammonia in coal-fired boiler leads to a decrease in flue gas temperature and an increase in NO

mass concentration in the furnace. The greater the ammonia blending ratio

the more significant the decrease in flue gas temperature and the increase in NO

mass concentration. When the ammonia blending ratio increases to 40%

the average flue gas temperature in the furnace drops by approximately 50 K

and the outlet NO

mass concentration increases by 29.4%. Measures such as blending ammonia in higher-level burners and increasing the primary air ratio can reduce the NO

mass concentration at the furnace outlet while ensuring complete combustion of ammonia and coal.

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references

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