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Hongchen Guo

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Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Chemical Engineering
Discipline:Industrial Catalysis. Physical Chemistry (including Chemical Physics)
Business Address:521 Room,Chemical Engineering Building B,West Campus, Dalian University of Technology.
Contact Information:+86-411-84986120
E-Mail:hongchenguo@dlut.edu.cn
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丙烯醚化合成二异丙醚催化剂研究

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Indexed by:期刊论文

Date of Publication:2005-02-25

Journal:燃料化学学报

Included Journals:PKU、ISTIC、CSCD、Scopus

Volume:33

Issue:1

Page Number:107-111

ISSN No.:0253-2409

Key Words:二异丙醚(DIPE);丙烯;水合;醚化

Abstract:比较了Hβ沸石、树脂、ZSM-5沸石等常用于丙烯醚化合成二异丙醚(DIPE)催化剂的性能,考察了助剂对Hβ沸石孔结构、酸度及催化活性的影响.结果表明,Hβ沸石上丙烯醚化合成DIPE的催化活性优于ZSM-5沸石,而树脂催化剂可催化丙烯水合生成异丙醇(IPA)反应.TiO2、ZrO2、碱土金属、稀土元素和VB族元素均使Hβ沸石的B酸中心减少,L酸中心增多.总酸量较大、L酸中心较多的催化剂,更有利于DIPE的生成.孔性质对催化剂活性的影响较小.TiO2可以大幅度提高DIPE选择性和时空产率,对提高丙烯转化率并无贡献.ZrO2可提高DIPE选择性、丙烯转化率和DIPE的时空产率,副产丙酮,且C6杂质较多.同时添加一种碱土金属、一种稀土元素和一种VB族元素制备的Hβ沸石催化剂具有较好的合成DIPE活性,在165 ℃、7.0 MPa、水/丙烯摩尔比0.5和LHSV 0.5 h-1时,DIPE的初始收率达到39%.运转1 000 h后,DIPE收率仅下降了3%.