Qr code
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:
E-Mail:
Click:Times

Open Time: ..

The Last Update Time: ..

Current position: Home >> Scientific Research >> Paper Publications
不同晶粒度HZSM-5沸石汽油降烯烃性能

Hits:

Indexed by:Journal Article

Date of Publication:2003-10-10

Journal:大连理工大学学报

Included Journals:CSCD、ISTIC、PKU、EI、Scopus

Volume:43

Issue:5

Page Number:571-576

ISSN:1000-8608

Key Words:HZSM-5;烯烃;FCC汽油;芳构化;异构化;烷基化

Abstract:考察了HZSM-5沸石晶粒度对降低FCC汽油(<70 ℃馏分)烯烃的影响.结果表明,在固定床反应器上,不同晶粒度的HZSM-5沸石都表现出很强的降烯烃能力, 可使FCC汽油中烯烃体积分数从61%降至11%~17%,但辛烷值均不降低.HZSM-5沸石对汽油的降烯烃作用得益于其优异的芳构化、异构化和烷基化性能.HZSM-5沸石的晶粒度对其催化活性与稳定性影响很大,纳米级HZSM-5沸石的活性高、稳定性好.因其粒度小、微孔短、孔口多以及位于孔口和外表面的酸中心数量多,对烷基芳烃和异构烷烃等"胖分子"的扩散阻力小,从而减小了积碳对在纳米级HZSM-5沸石上芳构化、芳烃烷基化和直链烃异构化反应的影响.HZSM-5沸石作为汽油降烯烃催化剂,须经过适当的改性以调节产品油的组成,其纳米晶体是理想的催化剂改性母体.