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Transesterification of sunflower oil over MoO3 supported on alumina

Paper ID Volume ID Publish Year Pages File Format Full-Text
41081 45876 2011 9 PDF Available
Title
Transesterification of sunflower oil over MoO3 supported on alumina
Abstract

Samples of MoO3/γ-Al2O3 with different MoO3 loadings (8, 12 and 16 wt%) calcined at different temperatures (800, 950 and 1100 K) have been used in the transesterification of sunflower oil with methanol. Activity was the highest when the samples were calcined at 950 K, the most active catalyst being 16%MoO3–Al2O3. XRD and Raman spectroscopy reveal the presence of many Mo-phases, such as dispersed surface molybdenum specie, bulk MoO3 and Al2(MoO4)3 in the samples. The influence of various parameters, such as Mo-loading, calcination temperature, reaction temperature and mole ratio of reactants (methanol:oil), on the reaction is presented. The reaction studies have been carried out both in a batch reactor and in a fixed-bed flow reactor. The studies reveal that a sound fixed-bed continuous transesterification process for the production of biodiesel can be designed using MoO3–Al2O3.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (87 K)Download as PowerPoint slideHighlights► MoO3 supported on γ-Al2O3 is active for the transesterification of sunflower oil. ► Catalyst is most active when calcined at 950 K; 16% MoO3 is preferred loading. ► The catalyst is also active for converting oil containing free fatty acids. ► The catalyst is suitable for use in a fixed-bed reactor with continuous operation.

Keywords
Transesterification; Biodiesel; Mo–alumina; FAME; Sunflower oil
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Transesterification of sunflower oil over MoO3 supported on alumina
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 409–410, 15 December 2011, Pages 239–247
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
Online Support
Any Questions? feel free to contact us