Research articles
ScienceAsia 38(2012): 90-94 |doi:
10.2306/scienceasia1513-1874.2012.38.090
Methanolysis of soybean oil over KCl/CaO solid base catalyst for biodiesel production
WinÿWinÿMar, EkasithÿSomsook*
ABSTRACT: A KCl-doped CaO catalyst synthesized by a wet impregnation method under microwave irradiation was studied in the transesterification of refined soybean oil with methanol at 338ÿK. The catalyst was characterized using powder X-ray diffraction, N2 adsorption-desorption, transmission electron microscopy, and FT-IR techniques. The basic strength of the catalysts was also determined by the Hammett indicator method. The KCl/CaO catalyst exhibited a chemical stability in the reaction medium as well as a good resistance to feedstocks with high acidity.
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| NANOCASTÿLaboratory, CentreÿforÿCatalysis, DepartmentÿofÿChemistry, andÿCentreÿforÿInnovationÿinÿChemistry, FacultyÿofÿScience, MahidolÿUniversity, Bangkokÿ10400ÿThailand |
* Corresponding author, E-mail: scess@mahidol.ac.th
Received 26 Nov 2011, Accepted 29 Feb 2012
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