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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：中科院大连化学物理研究所
学位：博士
所在单位：化工学院
学科：工业催化
办公地点：西部校区化工实验楼B423
联系方式：gxiong@dlut.edu.cn
电子邮箱：gxiong@dlut.edu.cn
Ethylation of coking benzene with ethanol over nano-sized ZSM-5 zeolites: Effects of rare earth oxides on catalyst stability
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论文类型：期刊论文
发表时间：2012-08-05
发表刊物：CATALYSIS COMMUNICATIONS
收录刊物：SCIE、EI、Scopus
卷号：25
页面范围：18-21
ISSN号：1566-7367
关键字：Coking benzene; Nano-sized ZSM-5 zeolites; Catalyst stability; Y2O3
摘要：The ethylation of coking benzene with ethanol over nano-sized ZSM-5 zeolites modified with Y2O3, La2O3 and CeO2 was investigated in a fixed-bed reactor. Nano-sized ZSM-5 zeolite modified with Y2O3 was more stable than the other two samples during the reaction. The results from NH3-TPD. Py-IR, and TG-DTA show that the strong Bronsted acid sites were eliminated, consequently suppressing coke deposits during the reaction. Combined with the results from H-1 NMR and Xe-129 NMR spectra, it is concluded that the hydrated Yttrium ions with small size reached deep location in zeolite channel. (C) 2012 Elsevier B.V. All rights reserved.