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煤焦水蒸气气化动力学模型及参数敏感性研究

帅超 ,  宾谊沅 ,  胡松 ,  向军 ,  孙路石 ,  苏胜 ,  许凯 ,  徐朝芬

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引用本文: 帅超, 宾谊沅, 胡松, 向军, 孙路石, 苏胜, 许凯, 徐朝芬. 煤焦水蒸气气化动力学模型及参数敏感性研究[J]. 燃料化学学报, 2013, 41(5): 558-564. shu
Citation:  SHUAI Chao, BIN Yi-yuan, HU Song, XIANG Jun, SUN Lu-shi, SU Sheng, XU Kai, XU Chao-fen. Kinetic models of coal char steam gasification and sensitivity analysis of the parameters[J]. Journal of Fuel Chemistry and Technology, 2013, 41(5): 558-564. shu

煤焦水蒸气气化动力学模型及参数敏感性研究

    通讯作者: 胡松, E-mail: hssh30@163.com。
  • 基金项目:

    国家自然科学基金(51176062, 21176098) (51176062, 21176098)

    国家重点基础研究发展规划(973计划, 2010CB227003)。 (973计划, 2010CB227003)

摘要: 在热重分析仪上对小龙潭煤焦、府谷煤焦和晋城煤焦水蒸气气化过程进行了研究。使用收缩核模型、混合模型和随机孔模型模拟了三种煤焦水蒸气气化反应过程。结果表明,混合模型总体上模拟效果最好,收缩核模型和随机孔模型对低变质程度的小龙潭煤焦气化过程模拟效果不佳,但是适用于模拟另外两种煤阶较高的煤焦气化过程。求解了三种模型的动力学参数,并分析了不同模型参数出现差异的原因。同时,采用敏感性分析法定量研究了模型中的参数发生偏差时引起模型误差的大小,并通过比较发现反应速率常数k为敏感性因素,而混合模型中反应级数n和随机孔模型中孔结构参数ψ为非敏感性因素。

English

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  • 收稿日期:  2012-10-03
  • 网络出版日期:  2012-12-06
通讯作者: 陈斌, bchen63@163.com
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