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Transesterification of dimethyl carbonate with diethyl carbonate over Al-Zn-MCM-41 and Al-MCM-41 molecular sieves

Paper ID Volume ID Publish Year Pages File Format Full-Text
44498 46034 2006 7 PDF Available
Title
Transesterification of dimethyl carbonate with diethyl carbonate over Al-Zn-MCM-41 and Al-MCM-41 molecular sieves
Abstract

Al-MCM-41 (Si/Al = 50, 100) and Al-Zn-MCM-41 (Si/Al + Zn = 50, 100) were synthesised hydrothermally and characterised by XRD, BET, TPD-Pyridine, FT-IR and 27Al MAS-NMR techniques. Their catalytic activity was tested for the transesterification of dimethyl carbonate (DMC) with diethyl carbonate (DEC). The reaction was carried out at 125, 150, 175 and 200 °C with feed ratio 1:1. Al-Zn-MCM-41 (50) was found to be more active than other catalysts. The DMC conversion was maximum at 175 °C. The study of time-on-stream showed decrease of conversion with increase in stream. The activity of the catalysts followed the order Al-Zn-MCM-41 (50) > Al-Zn-MCM-41 (100) > Al-MCM-41 (50) > Al-MCM-41 (100), which is also the order of the acidity of the catalysts.

Keywords
Ethyl methyl carbonate; Diethyl carbonate; Dimethyl carbonate; Transesterification; Al-MCM-41; Al-Zn-MCM-41
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Transesterification of dimethyl carbonate with diethyl carbonate over Al-Zn-MCM-41 and Al-MCM-41 molecular sieves
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 304, 10 May 2006, Pages 152–158
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
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Full-text PDF Download
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