Li-CaO catalysed tri-glyceride transesterification for biodiesel applications

Robert S. Watkins, Adam F. Lee, Karen Wilson

Research output: Contribution to journalArticle

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.
Original languageEnglish
Pages (from-to)335-340
Number of pages6
JournalGreen Chemistry
Volume6
Issue number7
DOIs
Publication statusPublished - Jul 2004

Fingerprint

Glycerides
Biofuels
Transesterification
Biodiesel
X-ray spectroscopy
defect
Methanol
methanol
Catalyst activity
X ray photoelectron spectroscopy
surface area
catalyst
Doping (additives)
electron
Defects
Catalysts
Electrons
tributyrin

Cite this

Watkins, Robert S. ; Lee, Adam F. ; Wilson, Karen. / Li-CaO catalysed tri-glyceride transesterification for biodiesel applications. In: Green Chemistry. 2004 ; Vol. 6, No. 7. pp. 335-340.
@article{d982d14cd6df49aead5abbf111454644,
title = "Li-CaO catalysed tri-glyceride transesterification for biodiesel applications",
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.",
author = "Watkins, {Robert S.} and Lee, {Adam F.} and Karen Wilson",
year = "2004",
month = "7",
doi = "10.1039/b404883k",
language = "English",
volume = "6",
pages = "335--340",
journal = "Green Chemistry",
issn = "1463-9262",
publisher = "Royal Society of Chemistry",
number = "7",

}

Li-CaO catalysed tri-glyceride transesterification for biodiesel applications. / Watkins, Robert S.; Lee, Adam F.; Wilson, Karen.

In: Green Chemistry, Vol. 6, No. 7, 07.2004, p. 335-340.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Li-CaO catalysed tri-glyceride transesterification for biodiesel applications

AU - Watkins, Robert S.

AU - Lee, Adam F.

AU - Wilson, Karen

PY - 2004/7

Y1 - 2004/7

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=4444365070&partnerID=8YFLogxK

UR - http://pubs.rsc.org/en/Content/ArticleLanding/2004/GC/b404883k#!divAbstract

U2 - 10.1039/b404883k

DO - 10.1039/b404883k

M3 - Article

AN - SCOPUS:4444365070

VL - 6

SP - 335

EP - 340

JO - Green Chemistry

JF - Green Chemistry

SN - 1463-9262

IS - 7

ER -