N<sub>2</sub> Formation from Coal Nitrogen During Pyrolysis and Combustion

刘海峰; 刘银河; 刘艳华; 车得福

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N₂ Formation from Coal Nitrogen During Pyrolysis and Combustion

更新时间：2025-12-08

- N₂ Formation from Coal Nitrogen During Pyrolysis and Combustion
- Vol. 42, Issue 3, Pages: 350-353(2008)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： X131.1
- Online First：10 March 2008，
  
  Published：2008
- 稿件说明：
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刘海峰, 刘银河, 刘艳华, et al. N₂ Formation from Coal Nitrogen During Pyrolysis and Combustion[J]. 2008, 42(3): 350-353.
DOI：

刘海峰, 刘银河, 刘艳华, et al. N₂ Formation from Coal Nitrogen During Pyrolysis and Combustion[J]. 2008, 42(3): 350-353. DOI：

摘要

利用气相色谱设备实验研究了国内4种煤在热解及燃烧过程中煤中燃料氮向N

的转化特性.研究结果表明:在煤的热解过程中

燃料氮能够转化为N

煤种不同

的转化率也不同; 神木煤氮的N

转化率最高

焦作煤最低; 随热解温度的升高

燃料氮的N

转化率升高; 在煤燃烧过程中

燃料氮同样能够转化为对环境无害的N

转化率同样与温度有关且随着温度的升高而增加

但当燃烧温度达到1 100 ℃时

除神木煤外

其他煤中燃料氮的N

转化率均有明显下降; 无论是热解还是燃烧

所研究煤中的矿物质均能够促进燃料氮向N

的转化; 无论脱灰与否

低温燃烧时燃料氮的N

转化率远比低温热解时高

但在1 100 ℃下的热解与燃烧时

转化率与煤种有关.

Abstract

Four kinds of native coals were applied to investigate for N

formation from coal nitrogen during pyrolysis or combustion with a gas chromatographic analysis system. The experimental results show that a part of coal nitrogen can be converted into N

during pyrolysis. The percentage of N

formation from fuel nitrogen is highest for Shenmu and lowest for Jiaozuo coal. N

formation percentage formed increases with the increase of temperature. During coal combustion

can also be formed from coal nitrogen

and N

formation percentage also depends on temperature. The percentage of N

forma

tion from coal nitrogen increases with temperature at the temperature lower than or equal to 900 ℃ for the coals studied while it decreases obviously at 1 100 ℃ except Shenmu coal. The minerals in the coals studied can enhance the N

formation whether during pyrolysis or during combustion process. The percentage of N

formation during low temperature combustion is greater than that during low temperature pyrolysis while it depends on coal types at 1 100 ℃.

关键词

Keywords

references

LEPPALAHTI J.X射线光电子能谱确定铜川煤及其焦中氮的形态 [J].西安交通大学学报,2001, 35(7):661-665.LIU Yanhua, CHE Defu, LI Yintang, et al. X-ray photoelectron spectroscopy determination of the forms of nitrogen in Tongchuan coal and its chars [J]. Journal of Xi'an Jiaotong University, 2001,35(7): 661-665.

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Related Institution

State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University

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⁰

N2 Formation from Coal Nitrogen During Pyrolysis and Combustion

DOI：

摘要

Abstract

关键词

Keywords

references

N₂ Formation from Coal Nitrogen During Pyrolysis and Combustion