Study on Catalytic Cracking of Cyclohexane to Produce Light Olefins

被引：0

作者：

Chen Hui ^{[1
]}

Wang Peng ^{[1
]}

Yan Jiasong ^{[1
]}

机构：

[1] SINOPEC Research Institute of Petroleum Processing

来源：

China Petroleum Processing & Petrochemical Technology | 2020年 / 22卷 / 01期

关键词：

cyclohexane; light olefins; catalytic cracking; reaction pathway; IR spectroscopy;

D O I：

暂无

中图分类号：

TQ221.2 [不饱和脂烃];

学科分类号：

摘要：

Catalytic cracking of cyclohexane(CHA) over ZSM-5, Beta, and USY zeolite catalysts was examined in a fixed fluidized bed reactor(ACE) at 773 K. The adsorption of cyclohexane in ZSM-5, Beta, and USY catalysts was investigated by IR spectroscopy. The IR results demonstrated that the zeolite structure has a remarkable influence on adsorption. Beta zeolite has stronger adsorption of cyclohexane than ZSM-5 and USY zeolites. During the cracking of cyclohexane, path Ⅰ(cyclohexane →methycyclopentane →light olefins) and path Ⅱ(cyclohexane → cyclohexene → light olefins) were found as two important reaction pathways to produce light olefins. A mixture of ZSM-5 and Beta zeolites is better suited for path Ⅰ, and a combination of ZSM-5 and USY zeolites is suitable for path Ⅱ. When pathway Ⅰ and pathway Ⅱ had the same proportion in cyclohexane conversion, pathway Ⅱ would be a better choice for light olefins production.

引用

页码：1 / 7

页数：7

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