Abstract
AbstractThe most used method of biodiesel production is the transesterification of vegetable oils by a basic homogeneous catalyst. A heterogeneous reaction mixture is formed by this process which contains two phases: an ester phase and a glycerol phase. From this mixture, biodiesel is gained by sedimentation. The quality and quantity of both phases are affected by the conditions of the sedimentation process. It was studied how the conditions (independent variables: temperature of separation, amount of added water, time of sedimentation, etc.) affect the quantity and the quality of both phases (dependent variables). The Plackett–Burman statistic system was used for experiment planning. The relationship between independent and dependent variables was found and described by multidimensional linear regression. The created model allows the calculation of the optimum conditions of biodiesel production so that the quality of the biodiesel fulfills the EN 14214.
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