Analysis of the flame formed during oxidation of pulverized coal by an O-2-CO2 mixture

被引:89
作者
Nozaki, T
Takano, S
Kiga, T
Omata, K
Kimura, N
机构
[1] ISHIKAWAJIMA HARIMA HEAVY IND CO LTD,KOTO KU,TOKYO 135,JAPAN
[2] ELECT POWER DEV CO LTD,CHUO KU,TOKYO,JAPAN
关键词
D O I
10.1016/S0360-5442(96)00143-0
中图分类号
O414.1 [热力学];
学科分类号
摘要
Pulverized coal combustion with oxygen and recycled flue gas constitutes a promising system to recover CO2 from the exhaust gases of boilers. Our previous combustion tests on this system suggest emissions of smaller amounts of NOx than in conventional combustion and reduced ignition stability of the burner. In order to improve the combustibility of the O-2/CO2-pulverized-coal burner, numerical simulations and combustion tests were performed. An oxygen-injection nozzle was added to the burner. Simulation results predicted the effectiveness of direct oxygen injection and were confirmed qualitatively by bench-scale combustion tests on gas temperatures.
引用
收藏
页码:199 / 205
页数:7
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