Shape selectivity of beta and MCM-49 zeolites in liquid-phase alkylation of benzene with ethylene
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- 作者：Yanchun Shi ; Enhui Xing ; Wenhua Xie ; Fengmei Zhang ; zhangfm.ripp@sinopec.com" class="auth_mail" title="E-mail the corresponding author ; Xuhong Mu ; Xingtian Shu
- 关键词：Shape selectivity ; Beta ; MCM-49 ; Liquid-phase alkylation ; Ethylbenzene
- 刊名：Journal of Molecular Catalysis A: Chemical
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：418-419
- 期：Complete
- 页码：86-94
- 全文大小：1051 K
文摘
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H-beta zeolite with 12 MR channels has better accessibility of active centers.
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Inner channel alkylation of benzene with ethylene leads to poor EB selectivity.
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Acids in 10 MR channels of MCM-49 form little EB due to transition state selectivity.
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Better diffusion into supercages via 10 MR windows of MCM-49 improves performance.