| Study on catalysts for combustion of lean CH_4 |
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| 作者姓名： | Zhou Zexing Yin Ling Xu JingKesearch Center for Eco-Fnvironmental Sciences Chinese Academy of Sciences.Beijing China |
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| 作者单位： | Zhou Zexing，Yin Ling，Xu JingKesearch Center for Eco-Fnvironmental Sciences，Chinese Academy of Sciences.Beijing 100085，China |
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| 摘 要： | ＳｔｕｄｙｏｎｃａｔａｌｙｓｔｓｆｏｒｃｏｍｂｕｓｔｉｏｎｏｆｌｅａｎＣＨ＿４ＺｈｏｕＺｅｘｉｎｇ，ＹｉｎＬｉｎｇ，ＸｕＪｉｎｇＫｅｓｅａｒｃｈＣｅｎｔｅｒｆｏｒＥｃｏ－ＦｎｖｉｒｏｎｍｅｎｔａｌＳｃｉｅｎｃｅｓ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃ...
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Study on catalysts for combustion of lean CH_4 |
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| Zhou Zexing,Yin Ling,Xu JingKesearch Center for Eco-Fnvironmental Sciences,Chinese Academy of Sciences.Beijing ,China.Study on catalysts for combustion of lean CH_4[J].Journal of Environmental Sciences,1994(1). |
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| Authors: | Zhou Zexing Yin Ling Xu JingKesearch Center for Eco-Fnvironmental Sciences Chinese Academy of Sciences |
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| Institution: | Zhou Zexing,Yin Ling,Xu JingKesearch Center for Eco-Fnvironmental Sciences,Chinese Academy of Sciences.Beijing 100085,China |
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| Abstract: | in this study, cerarnics honeycomb-supported ABO_3 perovskite type oxides were preparedby changing the composition of A and B site cations, and observed their activities for lean CH.oxidation. In the case of change in A site composition La_(0.3)Sr_(0.2)MnO_3 and La_(0.6)Sr_3MnO_3 is the mostactive catalysts for 1 v% CH_4 and 2 v% CH_4 respectively. But LaMn_(0.5)Co_(0.5)O_3 oxide is the best ac-tive catalyst for 1-2v% CH_4 among the oxides by changing B site compositions of LaBO_3 and su-perior to La_(0.3)Sr_(0.2)MnO_3 and La_(0.6)Sr_(0.4)MnO_3 catalysts.Adding trace Pd improved the activity and characteristics of space velocity for LaMn_(0.5)CO_(0.5)O_3and La_(0.3)Sr_(0.2)MnO_3 Although LaMn_(0.5)Co_(0.5)O_3 +Pd (0.03 wt%) was less active than the Pd catalyst,the activity was more than Pt catalyst at a conversion level below 90%. |
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| Keywords: | catalysts ABO_3 structure oxides catalytic combustion lean CH oxidation |
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