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DALIAN UNIVERSITY OF TECHNOLOGY Login 中文
Hongchen Guo

Professor
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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Current position: Home >> Scientific Research >> Paper Publications

晶粒度对ZSM-5沸石上C4液化气低温芳构化反应的影响

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Indexed by:期刊论文

Date of Publication:2007-08-18

Journal:化学通报(印刷版)

Included Journals:Scopus、PKU、ISTIC、CSCD

Volume:70

Issue:8

Page Number:633-636

ISSN No.:0441-3776

Key Words:晶粒度;ZSM-5沸石分子筛;芳构化;C4液化气;活性稳定性

Abstract:用小型加压固定床反应器对比研究了晶粒度分别为20~50 nm(DNZ)、1~2 μm(IDG)和3~4 μm(NK)的ZSM-5沸石的液化气(含C4烯烃56%、C4烷烃43%)低温芳构化反应性能.用SEM、XRF、XRD、NH3-TPD、吸附量和积炭量测定等方法对催化剂进行了表征.结果表明,纳米沸石催化剂DNZ与微米沸石催化剂IDG、NK虽初始芳构化活性(C5+烃中的芳烃含量)基本相同,但当DNZ、NK、IDG分别运转到192h、144h和168h时,芳烃含量分别降为68%、52%和46%,而积炭量依次为209、162和201mg/g.这是由于纳米ZSM-5沸石具有晶间孔辅助容炭,孔口多和孔道短等特点,因而在液化气低温芳构化反应中表现出比微米ZSM-5沸石更强的抗积炭失活能力.