Improvement of the heats of reaction in endothermic reactions of methylcyclohexane with zeolites

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• 作者：Joongyeon Kim^a ; Sun Hee Park^a ; Byung-Hee Chun^a ; Byung Hun Jeong^b ; Jeong Sik Han^b ; Sung Hyun Kim^a ; ^{kimsh@korea.ac.kr}
• 关键词：Heat of reaction ; Methylcyclohexane ; Zeolites ; Low-molecular-weight hydrocarbons ; Olefins
• 刊名：Catalysis Today
• 出版年：2012
• 期刊代码：13_09205861
• 类别：ce
• 出版时间：20 May, 2012
• 卷：185
• 期：1
• 页码：47-53
• 文件大小：1092 K

摘要

Endothermic reactions of methylcyclohexane (MCH) with zeolites were investigated in a batch reactor to increase the heats of reaction. Conversion and product distribution affected the heat of reaction. The heat of reaction with HZSM-5, which led to the formation of low-molecular-weight hydrocarbon products, was larger than the heats of reaction with other zeolites. To improve the heat of reaction with HZSM-5, Pt/HZSM-5 (1 wt.%Pt) was used in endothermic reactions. In endothermic reactions with Pt/HZSM-5, the heats of reaction increased, and there was a high yield of olefins, which were formed by dehydrogenation of paraffin on metal sites. A high conversion and high yield of low-molecular-weight hydrocarbons and olefins led to an increase in the heat of reaction.