Numerical Simulation of NO_x Formation in Coal Combustion with Inlet Natural Gas Burning  

作　　者：张宇 周力行 魏小林 盛宏至 

机构地区：[1]Institute of MechanicsChinese Academy of Sciences,Beijing 100080,China [2]The State Key Laboratory of Clean Coal CombustionTsinghua University,Beijing 100084,China

出　　处：《Chinese Journal of Chemical Engineering》2005年第3期318-323,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No. 50376068).

摘　　要：A full two-fluid model of reacting gas-particle flows and coal combustion is used to simulate coal combustion with and without inlet natural gas added in the inlet. The simulation results for the case without natural gas burning is in fair agreement with the experimental results reported in references. The simulation results of different natural gas adding positions indicate that the natural gas burning can form lean oxygen combustion enviroment at the combustor inlet region and the NOx concentration is reduced. The same result can be obtained from chemical equilibrium analysis.A full two-fluid model of reacting gas-particle flows and coal combustion is used to simulate coal combustion with and without inlet natural gas added in the inlet. The simulation results for the case without natural gas burning is in fair agreement with the experimental results reported in references. The simulation results of different natural gas adding positions indicate that the natural gas burning can form lean oxygen combustion enviroment at the combustor inlet region and the NOx concentration is reduced. The same result can be obtained from chemical equilibrium analysis.

关 键 词：coal combustion natural gas BURNING NOx formation numerical simulation 

分 类 号：TQ534.3[化学工程—煤化学工程]