Transalkylation of Phenol with Cumene on Zeolite Catalysts
详细信息 查看全文
- 作者：Shengjun Huang ; Shuang Zhang ; Lili Yu ; Zhenni Liu ; Wenjie Xin ; Sujuan Xie ; Longya Xu
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2013
- 出版时间：August 14, 2013
- 年：2013
- 卷：52
- 期：32
- 页码：10996-11000
- 全文大小：238K
- 年卷期：v.52,no.32(August 14, 2013)
- ISSN：1520-5045
文摘
Liquid-phase transalkylation of phenol with cumene was studied over various zeolites. Among the evaluated catalysts, ZSM-5 zeolites showed higher activities (ca. 50% phenol conversion) and usage efficiencies of isopropyl groups (ca. 80%) at 200 掳C and 1.5 MPa. The higher catalytic performances of ZSM-5 zeolites are closely related to their channel structure and moderate cumene uptake capacities. It has been shown that the activities are related to the strong acidity of ZSM-5 zeolites. The passivation of external acid sites on ZSM-5 zeolite enhances the selectivity for para-isopropylphenol.