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Evaluation of the activity and stability of alkali-doped metal oxide catalysts for application to an intensified method of biodiesel production

MacLeod, C. S., Harvey, A. P., Lee, Adam Fraser and Wilson, Karen 2008. Evaluation of the activity and stability of alkali-doped metal oxide catalysts for application to an intensified method of biodiesel production. Chemical Engineering Journal 135 (1-2) , pp. 63-70.

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Abstract

A series of alkali-doped metal oxide catalysts were prepared and evaluated for activity in the transesterification of rapeseed oil to biodiesel. Of those evaluated, LiNO3/CaO, NaNO3/CaO, KNO3/CaO and LiNO3/MgO exhibited >90% conversion in a standard 3 h test. There was a clear correlation between base strength and activity. These catalysts appeared to be promising candidates to replace conventional homogeneous catalysts for biodiesel production as the reaction times are low enough to be practical in continuous processes and the preparations are neither prohibitively difficult nor costly. However, metal leaching from the catalyst was detected, and this resulted in some homogeneous activity. This would have to be resolved before these catalysts would be viable for large-scale biodiesel production facilities.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
T Technology > TP Chemical technology
Uncontrolled Keywords: Biodiesel ; Renewable fuel ; Transesterification ; Heterogeneous catalysis ; Process intensification.
Publisher: Elsevier
ISSN: 1385-8947
Last Modified: 19 Mar 2016 22:21
URI: http://orca-mwe.cf.ac.uk/id/eprint/12948

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