Numerical investigation on hydrogen production by CH_4-Rich combustion in an alumina foam

查看全文 作　　者：ZHAO PingHui, YE TaoHong, ZHU MinMing, JIANG Hai & CHEN YiLiang Thermal Science & Energy Engineering Department, University of Science & Technology of China, Hefei 230027, China

出　　处：《Science China(Technological Sciences)》索引2009年第52卷第10期,共7页

基　　金：Supported by the China Postdoctoral Science Foundation (Grant No. 20080440713);the National Hi-Tech Research and Development Program ('863' Project) (Grant Nos. 2007AA05Z105, 2007AA05Z236);the National Natural Science Foundation of China (Grant No. 50776036) 摘　　要：The two-phase volume-averaged model with the detailed chemistry reaction mechanism GRI 3.0 was adopted in the quasi-steady-state simulation of hydrogen production by CH4-rich filtration combustion in an alumina foam under fully developed conditions. The relations among the combustion wave velocity, the inlet gas velocity and the equivalence ratio were discussed, and their influences on the distributions of temperature and species in the alumina foam and on H2 yield, CH4 conversion, H2 selectivity and CO selectivity were analyzed in detail. The results show that the combustion wave velocity increases with the increase of equivalence ratio or inlet gas velocity. The H2 yield exceeded 50% with equivalence ratio between 2.0 and 3.0 and combustion wave velocity larger than 0.4 mm/s. The H2 selectivity exceeded 50% with equivalence ratio larger than 2.0 and CO selectivity exceeded 80% with equivalence ratio between 1.8 and 2.0 and combustion wave velocity larger than 0.4 mm/s. 关键词：fuel-rich COMBUSTION in AN ALUMINA foam COMBUSTION wave velocity superadiabatic flame temperature H2 yield H2 selectivity

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Numerical investigation on hydrogen production by CH_4-Rich combustion in an alumina foam

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