昭通褐煤的热解提质及其对气化反应性能的影响

赵慧明 贾挺豪 王美君 鲍卫仁 常丽萍

引用本文: 赵慧明, 贾挺豪, 王美君, 鲍卫仁, 常丽萍. 昭通褐煤的热解提质及其对气化反应性能的影响[J]. 燃料化学学报, 2016, 44(08): 904-910. shu
Citation:  ZHAO Hui-ming, JIA Ting-hao, WANG Mei-jun, BAO Wei-ren, CHANG Li-ping. Upgrading of Zhaotong coal by pyrolysis and its effect on the gasification reactivity[J]. Journal of Fuel Chemistry and Technology, 2016, 44(08): 904-910. shu

昭通褐煤的热解提质及其对气化反应性能的影响

    通讯作者: 常丽萍
  • 基金项目:

    国家自然科学基金(U1510111) 

    国家自然科学基金青年基金(21406152) 

    山西省国际科技合作项目(2015081042) 

    山西省回国留学人员科研资助项目(2014-028) 

    太原理工大学引进人才基金(tyut-rc201366a) 

    太原理工大学青年基金(2013Z024)资助 

摘要: 为了对储量相对丰富的昭通褐煤进行合理有效的分级转化利用,采用固定床程序升温热解的方法研究了不同温度下煤的热解行为,借助GC-MS和拉曼光谱对所得焦油和煤焦进行了表征分析,并在850℃下对不同热解温度制得的煤焦进行了水蒸气等温气化特性评价。结果表明,热解温度为700℃时,热解气体有效组分(H2、CO、CH4)的累积物质的量占总释放量的70%,此温度下热解气低位热值增长速率最快(以500℃下热解气低位热值为基准计算,其值为90%);酚类化合物在500-700℃大量生成析出,而温度高于700℃时,酚类化合物的分解反应加剧。不同热解温度下所制煤焦的表观气化反应速率随热解温度的升高不断降低,气化产物中CO2与CO的物质的量逐渐升高,700℃热解制得的煤焦在水蒸气气氛下气化所得合成气中有效组分H2与CO的比率最高。

English

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  • 收稿日期:  2016-02-29
  • 网络出版日期:  2016-04-23
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