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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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神府烟煤水煤浆快速热解焦结构演化及其反应性的研究
, PP. 422-429
Keywords: 水煤浆,快速热解,比表面积,气化活性
Abstract:
？利用高频热解装置对神府烟煤水煤浆及其原煤进行了600~1200℃条件下的快速热解实验,考察了两者快速热解后的煤焦产率、焦-c产率随热解温度的变化规律.利用xrd、氮气气体吸附法、sem等测试手段对比分析了水煤浆及煤粉热解后煤焦的微晶结构、孔隙特征及表观结构;在热重分析仪上进行co2气化反应活性的测定,对比了水煤浆和煤粉热解后煤焦的气化活性.实验表明,随着热解温度的升高,水煤浆和煤粉的热解焦产率、焦-c产率均逐渐降低,热解温度低于900℃时,两者热解焦产率、焦-c产率趋于一致,热解温度高于900℃时,水煤浆热解焦产率和焦-c产率明显低于煤粉热解焦;高温热解条件下,水煤浆热解焦的微晶有序化程度比煤粉热解焦略高,比表面积明显高于煤粉热解焦,水煤浆热解焦的气化活性优于煤粉热解焦.
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