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：
0817 ;
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.
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页码：1 / 7
页数：7
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