Carbon-free dry reforming of methane to syngas over NdCoO₃ perovskite-type mixed metal oxide catalyst

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• 作者：Vasant R. Choudhary ; Kartick C. Mondal ; Ajit S. Mamman and Upendra A. Joshi
• 关键词：CO2 reforming of methane to syngas ; CoNdOx catalyst ; NdCoO3 perovskite ; resistance to carbon formation in CO2 reforming
• 刊名：Catalysis Letters
• 出版年：2005
• 出版时间：2005
• 年：2005
• 卷：100
• 期：3/4
• 页码：271-276
• 全文大小：244 KB

文摘

CoNdO_x (Co/Nd = 1) is a highly promising catalyst for the carbon-free CO₂ reforming of methane. Influence of the Co/Nd ratio on the catalyst performance in the CO₂ reforming and also on the crystalline phases and reduction by temperature programmed reduction (TPR) of the CoNdO_x catalyst has also been investigated. The CoNdO_x (CoNd = 1.0) catalyst consisted of mainly NdCoO₃ perovskite-type mixed metal oxide and it showed not only a high resistance to carbon formation at different process conditions (viz. temperature = 750–900 °C and gas hourly space velocity (GHSV) = 10000–50000 cm3 g–1 h–1) but also high activity and selectivity in the CO₂ reforming process. The high resistance to carbon formation for this catalyst is attributed mostly to strong metal (Co°)–support (Nd₂O₃) interactions.