NITROGEN OXIDES EMISSION FROM COAL CHAR COMBUSTION

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NITROGEN OXIDES EMISSION FROM COAL CHAR COMBUSTION

Feng Bo,Liu Hao,Yuan Jiamvei,Lin Zhijie and Liu Dechang(State key Laboratory of Coal Combustion, Huazhong University of Science and technology,Wuhan 430074)

Online:1995-12-25 Published:1995-12-25

煤焦燃烧中氢氧化物生成因素的研究

冯波,刘皓,袁建伟,林志杰,刘德昌

华中理工大学煤燃烧国家重点实验室!武汉430074,华中理工大学煤燃烧国家重点实验室!武汉430074,华中理工大学煤燃烧国家重点实验室!武汉430074,华中理工大学煤燃烧国家重点实验室!武汉430074,华中理工大学煤燃烧国家重点实验室!武汉430074

Abstract

Abstract: The formation characteristics of NO and N2O are studied during combustion of three kinds of coal char in a fixed bed reactor under different oxygen concentration, and temperature conditions. It was found that the main mechanism of NO formation is the decomposition of (- CNO) sites,which come from oxygen adsorption to the char surfaces. N2O,however , can be produced by three pathways, the relative importance of the mechanisms were discussed in terms of the experimental results.

摘要： 在一固定床反应器上研究了3种煤焦在不同氧浓度、不同温度下燃烧时NO及N_2O生成特性,还研究了燃烧后气体停留时间对NO和N_2O生成的影响,以及NO的加入对N_2O对生成的影响.研究表明,煤焦燃烧中NO主要由氧气吸附于(-CN)基上形成(-CNO)基后而生成,而N_2O的生成机理则有3个,本文比较了这3个反应机理的相对重要性.

CLC Number:

TQ534

Feng Bo,Liu Hao,Yuan Jiamvei,Lin Zhijie and Liu Dechang(State key Laboratory of Coal Combustion, Huazhong University of Science and technology,Wuhan 430074). NITROGEN OXIDES EMISSION FROM COAL CHAR COMBUSTION[J]. .

冯波,刘皓,袁建伟,林志杰,刘德昌. 煤焦燃烧中氢氧化物生成因素的研究 [J]. CIESC Journal.

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