甲烷在多孔介质中过滤燃烧制氢的数值模拟  

Numerical simulation of methane-air filtration combustion in porous media for hydrogen production

作　　者：解茂昭[1] 马坤[1] 芦宁[1] 史俊瑞[2] 

机构地区：[1]大连理工大学能源与动力学院,辽宁大连116024 [2]沈阳工程学院沈阳市循环流化床燃烧技术重点实验室,辽宁沈阳110136

出　　处：《热科学与技术》2009年第1期69-73,共5页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目(50476013)

摘　　要：对燃料极富条件下(φ>2.0)甲烷在多孔介质中的部分氧化重整制取氢气的工艺过程进行了数值模拟。建立了一维定常双温度模型,采用详细化学反应机理GRI1.2,着重研究燃烧区峰值温度、主要化学组分的分布规律和氢气的转化效率。讨论了混合气体流速、当量比等参数对甲烷转化特性的影响。数值模拟结果与文献[4]的实验结果基本吻合。The conversion of methane to hydrogen by partial oxidation in a porous media reactor was investigated over a range of large fuel-air equivalence （φ〉2.0） by numerical simulation. A one-dimensional two-temperature model was presented and the detailed GRI 1.2 mechanism was used for methane oxidation. The distributions of peak combustion temperatures, and main chemical species as well as the percent conversion of CH4 to H2 were predicted. Influences of parameters affecting combustion characteristics, i.e. the inlet gas velocity, equivalence ratio, were examined. The computational results were validated against the experimental data of Kennedy et al,and a reasonable agreement was observed.

关 键 词：多孔介质 过滤燃烧 制氢 数值模拟 

分 类 号：TQ533[化学工程—煤化学工程]