Journal
BIOMASS & BIOENERGY
Volume 35, Issue 3, Pages 1329-1338Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2010.12.049
Keywords
Biodiesel; Waste cooking palm oil; Response surface methodology; Sr/ZrO2 catalyst; Optimization
Funding
- Ministry of Science, Technology and Innovation (MOSTI)
- Ministry of Higher Education (MOHE) [78402]
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Heterogeneous transesterification of waste cooking palm oil (WCPO) to biodiesel over Sr/ZrO2 catalyst and the optimization of the process have been investigated. Response surface methodology (RSM) was employed to study the relationships of methanol to oil molar ratio, catalyst loading, reaction time, and reaction temperature on methyl ester yield and free fatty acid conversion. The experiments were designed using central composite by applying 2(4) full factorial designs with two centre points. Transesterification of WCPO produced 79.7% maximum methyl ester yield at the optimum methanol to oil molar ratio = 29:1, catalyst loading = 2.7 wt%, reaction time = 87 min and reaction temperature = 115.5 degrees C. (C) 2011 Elsevier Ltd. All rights reserved.
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