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Catalytic synthesis of ethylbenzene by alkylation of benzene with diethyl carbonate over HZSM-5

Paper ID Volume ID Publish Year Pages File Format Full-Text
52981 46892 2009 6 PDF Available
Title
Catalytic synthesis of ethylbenzene by alkylation of benzene with diethyl carbonate over HZSM-5
Abstract

The catalytic synthesis of ethylbenzene by alkylation of benzene with diethyl carbonate was carried out over HZSM-5 with Si/Al ratios from 50 to 250. The catalysts were characterized by XRD, SEM, 29Si and 27Al MAS-NMR, NH3-TPD and pyridine IR techniques. HZSM-5 with a Si/Al ratio of 200 exhibited the best benzene conversion and ethylbenzene selectivity because of its ideal acid strength. Strongly acidic sites may lead to an excessive decomposition of diethyl carbonate. The effects of temperature, feed ratio, WHSV and time-on-stream on catalytic activity and product selectivity were studied, and a possible mechanism is presented.

Keywords
Ethylbenzene; Alkylation; Benzene; Diethyl carbonate; HZSM-5
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Catalytic synthesis of ethylbenzene by alkylation of benzene with diethyl carbonate over HZSM-5
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 702–707
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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