水蒸气气氛煤中温催化气化动力学研究

王西明 王兴军 陈凡敏 刘海峰 于广锁 王辅臣

引用本文: 王西明, 王兴军, 陈凡敏, 刘海峰, 于广锁, 王辅臣. 水蒸气气氛煤中温催化气化动力学研究[J]. 燃料化学学报, 2013, 41(10): 1166-1172. shu
Citation:  WANG Xi-ming, WANG Xing-jun, CHEN Fan-min, LIU Hai-feng, YU Guang-suo, WANG Fu-chen. Catalytic gasification kinetics of coal with steam at mid-temperature[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1166-1172. shu

水蒸气气氛煤中温催化气化动力学研究

    通讯作者: 王兴军,E-mail:wxj@ecust.edu.cn,Tel:021-64250734。
  • 基金项目:

    国家重点基础研究发展规划(973计划, 2010CB227000)。 (973计划, 2010CB227000)

摘要: 以碳酸钾为催化剂,用热天平的等温热重法研究了四种不同变质程度煤焦常压下水蒸气催化气化反应动力学。在加和不加碳酸钾条件下,测定了温度为700~850℃煤焦的化学反应控制条件下的碳转化率与时间的关系。碳酸钾催化剂的加入对变质程度越高煤的气化催化作用越大。加碳酸钾的碳转化率与时间的关系用混合模型和修正随机孔模型可以良好的拟合关联,均相模型关联较差。利用修正随机孔模型拟合关联出了四种煤焦催化水蒸气气化反应的活化能和指前因子,活化能为90.317~167.861kJ/mol,指前因子和活化能之间具有补偿效应。

English

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  • 收稿日期:  2013-03-25
  • 网络出版日期:  2013-05-02
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