个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:盘锦校区管委会副主任兼教学与科研工作部部长
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:化工学院
学科:工业催化. 物理化学
办公地点:化工实验楼B427
联系方式:18641143913
电子邮箱:guoxw@dlut.edu.cn
An approach to prepare nanosized HZSM-22 with enhanced lifetime in the methanol to hydrocarbon (MTH) reaction
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论文类型:期刊论文
发表时间:2015-01-01
发表刊物:RSC ADVANCES
收录刊物:SCIE、EI、Scopus
卷号:5
期号:108
页面范围:88928-88935
ISSN号:2046-2069
摘要:Nanosized HZSM-22 has been successfully prepared using ball milling combined with alkaline and acid leaching treatment. The samples were characterized by XRD, XRF, nitrogen physical adsorption-desorption, SEM and solid state NMR. The results showed that the size of the zeolite crystal was greatly reduced after ball milling treatment, and that the crystallinity of the milled sample can be almost totally restored after further alkaline and acid treatment. The prepared nanosized HZSM-22 exhibited enhanced catalytic stability compared with the parent sample in the MTH reaction. Detailed product analysis implied that the improvement of the diffusion effect and the correspondingly reduced secondary reaction would be the most important factor for the long-term MTH operation over the nanosized catalyst.