No Destruction and Regeneration in CO_2 Enriched CH_4 Flame : A Fundamental Study on CO_2 Recycled Coal Combustion
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概要
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The effect of initial CO_2 concentraion on NO destruction and regeneration was investigated as part of our ongoing research on NO emission from CO_2 recycled coal combustion, which could realize easy CO_2 recovery and drastic NO reduction simultaneously. Experiments were carried out in a flat flame burner for CH_4 / O_2 / Ar / NO / CO_2 flame at various excess oxygen ratios(from 0.6 to 1.2) and CO_2 concentrations(from 0% to 48%). It was found that CO_2 has a pronounced negative effect on the destruction of NO under fuel-rich condition. In contrast, under fuel-lean condition, the effect of CO_2 becomes smaller even at high CO_2 concentration. Kinetic Modeling showed that a large part of NO is regenerated through the reaction N+CO_2=NO+CO at high CO_2 concentrations. The effect of CO_2 is not so significant under fuel-lean condition because this reaction is no longer competitive with other NO formation reactions in this case.
- 一般社団法人日本機械学会の論文
- 1998-11-15
著者
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Okazaki Ken
Department Of Innovative Medical Technology Graduate School Of Medical Sciences Kyushu University
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Feng Bo
On Leave From National Laboratory Of Coal Combustion Huazhong University Of Science And Technology
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Ando Takashi
Department Of Immunology Faculty Of Medicine University Of Yamanashi
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Okazaki Ken
Department Of Energy Engineering Toyohashi University Of Technology
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Ando Takashi
Department Of Mechanical Engineering And Science Tokyo Institute Of Technology
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Ando Takashi
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences Univers
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