ScienceAsia 38(2012): 90-94 |doi:
Methanolysis of soybean oil over KCl/CaO solid base catalyst for biodiesel production
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 338˙K. 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.
|NANOCAST˙Laboratory, Centre˙for˙Catalysis, Department˙of˙Chemistry, and˙Centre˙for˙Innovation˙in˙Chemistry, Faculty˙of˙Science, Mahidol˙University, Bangkok˙10400˙Thailand
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Received 26 Nov 2011, Accepted 29 Feb 2012