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Li-CaO catalysed tri-glyceride transesterification for biodiesel applications

Watkins, R.S., Lee, A.F. and Wilson, K. (2004) Li-CaO catalysed tri-glyceride transesterification for biodiesel applications. Green Chemistry, 6 (7). pp. 335-340. ISSN 1463-9262

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Abstract

A series of Li-promoted CaO catalysts with Li loadings in the range 0.26–4.0 wt% have been prepared which are effective in the transesterification of glyceryl tributyrate and methanol to methyl butanoate. A Li content of 1.23 wt% provides the optimum activity towards methyl butanoate formation. Li doping increases the base strength of CaO, and XPS and DRIFTS measurements reveal that the optimum loading correlates with the formation of an electron deficient surface Li+ species and associated –OH species at defect sites on the support. High Li loadings result in bulk LiNO3 formation and a drop in surface area and corresponding catalytic activity.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Chemistry (York)
Depositing User: York RAE Import
Date Deposited: 03 Sep 2009 09:39
Last Modified: 03 Sep 2009 09:39
Published Version: http://dx.doi.org/10.1039/b404883k
Status: Published
Publisher: Royal Society of Chemistry
Identification Number: 10.1039/b404883k
URI: http://eprints.whiterose.ac.uk/id/eprint/6132

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