Home // BIONATURE 2011, The Second International Conference on Bioenvironment, Biodiversity and Renewable Energies // View article

Application of sulfated tin oxide in Transesterification of Waste Cooking Oil: An Optimization Study

Authors:
Man Kee Lam
Keat Teong Lee

Keywords: Keywords- solid acid catalys; sulfated tin oxide; biodiesel; waste cooking oil

Abstract:
Biodiesel is a biodegradable and non-toxic fuel which can be produced through transesterification reaction. However, it is impractical to use the refined vegetable oils as the feedstock for biodiesel production due to its high production cost and priority for food products. Thus, low-grade oil with high free fatty acids (FFA) content, typically waste cooking oil has been a promising choice to improve the economical feasibility of biodiesel. In the present study, superacid sulfated tin oxide catalyst, SO42-/SnO2 has been successfully prepared through impregnation method. Bimetallic effect was also studied at which SnO2 mixed with SiO2 and Al2O3, respectively at different weight ratio in order to enhance the catalytic activity of SnO2. The effect of different reaction parameters such as calcinations temperature and period, reaction temperature, catalyst loading, methanol to oil ratio and reaction time were studied to optimize the reaction conditions. It was found that SO42-/SnO2-SiO2 with weight ratio 3 exhibited an exceptional high activity with optimum yield 92.3% at reaction temperature 150oC, catalyst loading 3 wt%, methanol to oil ratio 15 and reaction time 3 hours.

Pages: 17 to 20

Copyright: Copyright (c) IARIA, 2011

Publication date: May 22, 2011

Published in: conference

ISSN: 2308-4154

ISBN: 978-1-61208-138-0

Location: Venice/Mestre, Italy

Dates: from May 22, 2011 to May 27, 2011