TY - JOUR AB - Heterogeneous transesterification of waste cooking palm oil (WCPO) to biodiesel over Sr/ZrO(2) 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. AD - Univ Teknol Malaysia, CREG, Fac Chem & Nat Resources Engn, Utm Skudai 81310, Johor, Malaysia AN - WOS:000288306700040 AU - Omar, W. N. N. W. AU - Amin, N. A. S. DA - Mar DO - 10.1016/j.biombioe.2010.12.049 IS - 3 J2 - Biomass Bioenerg KW - biodiesel LA - English N1 - 734ax PY - 2011 SN - 0961-9534 SP - 1329-1338 ST - Optimization of heterogeneous biodiesel production from waste cooking palm oil via response surface methodology T2 - Biomass & Bioenergy TI - Optimization of heterogeneous biodiesel production from waste cooking palm oil via response surface methodology UR - ://WOS:000288306700040 VL - 35 ID - 6822 ER -