神府烟煤水煤浆快速热解焦结构演化及其反应性的研究

吴磊 周志杰 王兴军 于广锁 王辅臣

引用本文: 吴磊, 周志杰, 王兴军, 于广锁, 王辅臣. 神府烟煤水煤浆快速热解焦结构演化及其反应性的研究[J]. 燃料化学学报, 2013, 41(4): 422-429. shu
Citation:  WU Lei, ZHOU Zhi-jie, WANG Xing-jun, YU Guang-suo, WANG Fu-chen. Structure changes and gasification reactivity of CWS char from Shenfu coal rapid pyrolysis[J]. Journal of Fuel Chemistry and Technology, 2013, 41(4): 422-429. shu

神府烟煤水煤浆快速热解焦结构演化及其反应性的研究

    通讯作者: 周志杰, Tel: 021-46252974, E-mail: zzj@ecust.edu.cn.
摘要: 利用高频热解装置对神府烟煤水煤浆及其原煤进行了600~1 200 ℃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.

English

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  • 收稿日期:  2012-08-16
  • 网络出版日期:  2012-10-14
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