逐级酸处理对锡盟褐煤的结构及热解特性的影响:气相产物的生成

张晋玲 王美君 陈望舒 付春慧 任秀荣 常丽萍

引用本文: 张晋玲, 王美君, 陈望舒, 付春慧, 任秀荣, 常丽萍. 逐级酸处理对锡盟褐煤的结构及热解特性的影响:气相产物的生成[J]. 燃料化学学报, 2013, 41(10): 1160-1165. shu
Citation:  ZHANG Jin-ling, WANG Mei-jun, CHEN Wang-shu, FU Chun-hui, REN Xiu-rong, CHANG Li-ping. Effects of step acid treatment process on the structure and pyrolysis characteristics of Ximeng brown coal: formation of gaseous products[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1160-1165. shu

逐级酸处理对锡盟褐煤的结构及热解特性的影响:气相产物的生成

    通讯作者: 常丽萍,Tel/Fax:0351-6010482,E-mail:lpchang@tyut.edu.cn。
  • 基金项目:

    国家自然科学基金(21176165, 1261110) (21176165, 1261110)

    高等学校博士学科点专项科研基金博导类资助课题(20111402110009) (20111402110009)

    山西省科技基础条件平台建设项目(2012091018) (2012091018)

    山西省研究生优秀创新项目。 

摘要: 为了考察逐级酸处理对锡盟褐煤热解过程中气相产物生成的影响,对锡盟褐煤进行了HF-HNO3-HCl逐级处理,原煤和酸处理煤样采用固定床热解-气相色谱法在线分析气相产物释放行为和变化的研究。结果表明,逐级酸处理过程对锡盟褐煤热解过程中含氢气体、含氧气体和含硫气体的释放有着明显的影响。不同气体的形成途径、形成阶段和温区不同,导致酸处理过程对其的影响有明显的差异。逐级酸处理的煤样,除因矿物质对煤热解气相产物的影响减弱外,HNO3处理样还因其氧化作用引起了气相产物释放趋势的变化,使得含氢气体的释放量降低、含氧气体释放量增加;降低了H2S的累积释放转化率而促进COS的释放。

English

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  • 收稿日期:  2012-12-26
  • 网络出版日期:  2013-02-07
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