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OALib Journal期刊
ISSN: 2333-9721
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基于镍基载氧体的串行流化床煤化学链燃烧实验
, PP. 649-656
Keywords: 载氧体,串行流化床,煤,化学链燃烧
Abstract:
？以nio/al2o3为载氧体,在1kwth串行流化床反应器上进行了煤化学链燃烧实验,通过四个参数:碳转换效率ηc,coal、煤气化产物的转换效率、碳捕集效率ηc,cap及煤燃烧效率ηcombust对煤燃烧过程进行表征,考察了燃料反应器温度tfr、过量空气系数α、隔离器水煤比sls/c、燃料反应器水煤比sfr/c和热负荷等参数的影响。结果表明,tfr和sls/c的增大有利于煤气化产物的转换;tfr、α和sls/c的增大有助于ηc,coal的提高,随着sfr/c由0.8增加到1.8,ηc,coal呈先增加再减小的趋势,并在sfr/c=1.2达到最大值;ηcombust和ηc,coal变化趋势保持一致,主要受飞灰含碳量中残碳损失的影响;tfr提高有助于提高ηc,cap,而α和sls/c的增大使得ηc,cap降低。
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