To address the over-oxidation issue in syngas production from methane partial oxidation reaction,the syngas selectivity is improved through coupling a mixed conductor oxygen permeable membrane reactor with methane partial oxidation reaction.The performance of membrane reactor is tested by using Ni/γ-Al2O3 and Ni/SBA-15 as catalysts.Results show that after the test,the mesoporous structure of Ni/SBA-15 catalyst collapsed and its performance decreased.In comparison,the conversion of methane over the membrane reactor with Ni/γ-Al2O3 as catalyst reaches 92％at 950℃,and the CO selectivity is as high as 99％.After 500 min of stability test,the membrane reactor presents good methane conversion and chemical stability.
关键词
混合导体膜/合成气/催化剂/膜反应器/甲烷部分氧化
Key words
mixed conductor membrane/syngas/catalyst/membrane reactor/partial oxidation of methane
维普
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