文档介绍：Industrial Crops and Products 8 (1998) 29–35
Application of the factorial design of experiments and response
surface methodology to optimize biodiesel production
G. Vicente, A. Coteron, M. Martinez, J. Aracil *
Department of Chemical Engineering, Faculty of Chemistry, Complutense Uni6ersity, 28040 Madrid, Spain
Received 18 April 1997; received in revised form 3 July 1997; accepted 21 July 1997
Abstract
The production of fatty acid methyl esters, to be used as a diesel substitute (biodiesel), has been studied. The
reaction of refined sunflower oil and methanol was carried out over different types (acid and basic, homogeneous and
heterogeneous) of catalysts. The catalyst that led to largest conversions was sodium hydroxide. No methyl esters were
detected when zirconium-based catalysts and an immobilized lipase were used. The process of biodiesel production
was optimized by application of the factorial design and response surface methodology. Temperature and catalyst
concentration were found to have a positive influence on conversion, concentration effect being larger than
temperature effect. A second-order model was obtained to predict conversions as a function of temperature and
catalyst concentration. Optimum conditions for the production of methyl esters were found to be mild temperatures
(20–50°C) and large catalyst concentrations (%). © 1998 Elsevier Sci