Conversions of fuel-N, volatile-N, and char-N to NO and N2O during combustion of a single coal particle in O2/N2 and O2/H2O at low temperature

Yuan Li; Hao Zhou; Ning Li; Runchao Qiu; Kefa Cen

doi:10.1016/j.cjche.2018.01.009

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Conversions of fuel-N, volatile-N, and char-N to NO and N₂O during combustion of a single coal particle in O₂/N₂ and O₂/H₂O at low temperature

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Conversions of fuel-N, volatile-N, and char-N to NO and N₂O during combustion of a single coal particle in O₂/N₂ and O₂/H₂O at low temperature
- Conversions of fuel-N, volatile-N, and char-N to NO and N₂O during combustion of a single coal particle in O₂/N₂ and O₂/H₂O at low temperature
- 中国化学工程学报（英文版） 2018年26卷第9期页码：1967-1977
- Affiliations：
  
  State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University,Hangzhou,China,310027
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.01.009
  中图分类号：
- 纸质出版：2018
- Accepted：
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Yuan Li, Hao Zhou, Ning Li, 等. Conversions of fuel-N, volatile-N, and char-N to NO and N₂O during combustion of a single coal particle in O₂/N₂ and O₂/H₂O at low temperature[J]. 中国化学工程学报（英文版）, 2018,26(9):1967-1977. DOI: 10.1016/j.cjche.2018.01.009.

O during combustion of a single coal particle in O
Yuan Li, Hao Zhou, Ning Li, 等. Conversions of fuel-N, volatile-N, and char-N to NO and N₂O during combustion of a single coal particle in O₂/N₂ and O₂/H₂O at low temperature[J]. 中国化学工程学报（英文版）, 2018,26(9):1967-1977. DOI: 10.1016/j.cjche.2018.01.009. DOI：

O during combustion of a single coal particle in O DOI： 10.1016/j.cjche.2018.01.009.

摘要

Abstract

Oxy-steam combustion is a promising next-generation combustion technology. Conversions of fuel-N

volatile-N

and char-N to NO and N

O during combustion of a single coal particle in O

and O

O were studied in a tube reactor at low temperature. In O

NO reaches the maximum value in the devolatilization stage and N

O reaches the maximum value in the char combustion stage. In O

both NO and N

O reach the maximum values in the char combustion stage. The total conversion ratios of fuel-N to NO and N

O in O

are obviously higher than those in O

due to the reduction of H

O on NO and N

O. Temperature changes the trade-off between NO and N

O. In O

and O

the conversion ratios of fuel-N

volatile-N

and char-N to NO increase with increasing temperature

and those to N

O show the opposite

trends. The conversion ratios of fuel-N

volatile-N

and char-N to NO reach the maximum values at ?O

?=30 vol% in O

. In O

the conversion ratios of fuel-N and char-N to NO reach the maximum values at ?O

?=30 vol%

and the conversion ratio of volatile-N to NO shows a slightly increasing trend with increasing oxygen concentration. The conversion ratios of fuel-N

volatile-N

and char-N to N

O decrease with increasing oxygen concentration in both atmospheres. A higher coal rank has higher conversion ratios of fuel-N to NO and N

O. Anthracite coal exhibits the highest conversion ratios of fuel-N

volatile-N

and char-N to NO and N

O in both atmospheres. This work is to develop efficient ways to understand and control NO and N

O emissions for a clean and sustainable atmosphere.

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