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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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o2/co2燃烧方式下煤焦？no反应特性研究
, PP. 12-17
Keywords: 锅炉,o2/co2燃烧,no还原,煤焦,co2排放,nox排放
Abstract:
利用固定床反应器装置对李家塔烟煤和锦界烟煤在高浓度co2气氛下煤焦异相还原no的反应特性进行了实验研究,考察了反应气氛、制焦气氛、升温速率、煤粉粒径、煤焦中矿物质对煤焦异相还原no的影响规律。结果表明:反应气氛中高浓度co2的存在不利于煤焦还原no;相较n2气氛,高浓度co2气氛下,反应过程中生成了大量co,但其并未对no还原起促进作用;制焦气氛主要影响煤焦的含碳量,而对煤焦反应性的影响较小;升温速率对煤焦还原no能力的影响较小;煤粉粒径越小其煤焦还原no能力越强;煤焦中矿物质对煤焦还原no能力的影响不尽相同,取决于煤焦中矿物质的具体组分。
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