| CO Selective Oxidation in Hydrogen-Rich Gas over Copper-Series Catalysts |
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| 作者姓名： | HanboZou XinfaDong WeimingLin |
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| 作者单位： | [1]SchoolofChemicalandEnergyEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,China [2]SchoolofChemicalandEnergyEngineering,SouthChinaUniversityofTechnology,Guangzhou510650,China／／DepartmentofBiologicalandChemicalEngineering,GuangzhouUniversity,Guangzhou510405,China |
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| 基金项目： | 广东省自然科学基金，教育部博士基金，广东省广州市科技局科研项目 |
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| 摘 要： | The performances of CO selective oxidation in hydrogen-rich gas over four catalytic systems of CuO/ZrO2, CuO/MnO2, CuO/CoO and CuO/CeO2 were compared. The reducibility of these catalysts and the effect of CuO and CeO2 molar ratio of CuO/CeO2 catalysts on the activity of selective CO oxidation are investigated by XRD and TPR methods. The results show that the catalysts with the exception of CuO/ZrO2 have the interactions between CuO and CoO, CeO2 or MnO2, which result in a decrease in the reduction temperature. Among the catalysts studied, CuO/ZrO2 catalyst shows the lowest catalytic activity while CuO/CeO2 catalyst exhibits the best catalytic performance. The CuO(10%)/CeO2 catalyst attains the highest CO conversion and selectivity at 140 and 160℃. The addition of 9% H2O in the reactant feed decreases the activity of CuO/CeO2 catalyst but increases its CO selectivity.
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| 关 键 词： | 一氧化碳 选择性氧化 铜氧化物催化剂 富氢气体 电解质膜燃料电池 |
CO Selective Oxidation in Hydrogen-Rich Gas over Copper-Series Catalysts |
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| HanboZou XinfaDong WeimingLin.CO Selective Oxidation in Hydrogen-Rich Gas over Copper-Series Catalysts[J].Journal of Natural Gas Chemistry,2005,14(1):29-34. |
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| Authors: | Hanbo Zou Xinfa Dong Weiming Lin |
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| Institution: | School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | The performances of CO selective oxidation in hydrogen-rich gas over four catalytic systems of CuO/ZrO2, CuO/MnO2, CuO/CoO and CuO/CeO2 were compared. The reducibility of these catalysts and the effect of CuO and CeO2 molar ratio of CuO/CeO2 catalysts on the activity of selective CO oxidation are investigated by XRD and TPR methods. The results show that the catalysts with the exception of CuO/ZrO2 have the interactions between CuO and CoO, CeO2 or MnO2, which result in a decrease in the reduction temperature. Among the catalysts studied, CuO/ZrO2 catalyst shows the lowest catalytic activity while CuO/CeO2 catalyst exhibits the best catalytic performance. The CuO(10%)/CeO2 catalyst attains the highest CO conversion and selectivity at 140 and 160 ℃. The addition of 9% H2O in the reactant feed decreases the activity of CuO/CeO2 catalyst but increases its CO selectivity. |
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| Keywords: | hydrogen-rich gas copper-series catalyst CuO/CeO2 catalyst selective oxidation carbon monoxide |
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