Alkali- and nitrate-free synthesis of highly active Mg-Al hydrotalcite-coated alumina for FAME production

Creasey, J, Chieregato, A, Manayil, J, Parlett, C, Wilson, K and Lee, A 2014, 'Alkali- and nitrate-free synthesis of highly active Mg-Al hydrotalcite-coated alumina for FAME production', Catalysis Science and Technology, vol. 4, no. 3, pp. 861-870.


Document type: Journal Article
Collection: Journal Articles

Title Alkali- and nitrate-free synthesis of highly active Mg-Al hydrotalcite-coated alumina for FAME production
Author(s) Creasey, J
Chieregato, A
Manayil, J
Parlett, C
Wilson, K
Lee, A
Year 2014
Journal name Catalysis Science and Technology
Volume number 4
Issue number 3
Start page 861
End page 870
Total pages 10
Publisher Royal Society of Chemistry
Abstract MgAl hydrotalcite coatings have been grown on alumina via a novel alkali- and nitrate-free impregnation route and subsequent calcination and hydrothermal treatment. The resulting MgHT/Al2O3 catalysts significantly outperform conventional bulk hydrotalcites prepared via co-precipitation in the transesterification of C4C18 triglycerides for fatty acid methyl ester (FAME) production, with rate enhancements increasing with alkyl chain length. This promotion is attributed to improved accessibility of bulky triglycerides to active surface base sites over the higher area alumina support compared to conventional hydrotalcites wherein many active sites are confined within the micropores.
Subject Catalysis and Mechanisms of Reactions
Keyword(s) Layered Double Hydroxides
Curcas Seed Oil
Biodiesel Synthesis
Triglyceride Transesterification
Gamma-Alumina
Neutral pH
Catalysts
Surface
Methanol
Oxide
DOI - identifier 10.1039/c3cy00902e
Copyright notice © 2014 The Royal Society of Chemistry.Creative Commons Attribution 3.0 Unported Licence
ISSN 2044-4753
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