Comparison of Cu鈥揅e鈥揨r and Cu鈥揨n鈥揂l mixed oxide catalysts for water-gas shift

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• 关键词：Cu&#8211 ; Zn&#8211 ; Al ; Cu&#8211 ; Ce&#8211 ; Zr ; mixed metal oxides ; water ; gas shift
• 刊名：Topics in Catalysis
• 出版时间：August, 2007
• 出版年：2007
• 期刊代码：58_10225528
• 类别：mt
• 卷：45
• 期：1-4
• 页码：101-104
• 数据来源：sp

摘要

Cu–Zn–Al and Cu–Ce–Zr mixed oxide catalysts were prepared by two different methods, co-precipitation and flame spray pyrolysis. The performance of the catalysts was evaluated using the water-gas shift reaction with and without CO₂ and H₂ added to the feed. Cu–Ce–Zr catalysts are found not to be superior to Cu–Zn–Al catalysts in terms of initial activity and short-term stability. Their apparent activation energy appears to be less affected by increased concentrations of CO₂ and H₂.