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Kinetic Model Based on Ping Pong Bi Bi Mechanism for Enzymatic Interesterification to Produce Biodiesel
Researcher : H. Hermansyah
Published : 2009
Group :Biofuel
Full Report : Special request
Abstract :
Conventional process to produced biodiesel is transesterification of triglycerides and alcohol in the presence of alkaline catalyst. This process has some problem in side product and purification process. To overcome this problem, alkaline catalyst and alcohol can be replaced with lipases and alkyl acetate. Some studies  have been reported that methyl acetate and ethyl acetate can be used as alkyl supplier to synthesis biodiesel from soybean oil and fat using Candida antactica lipase, Candida rugosa lipase and Porcine pancreatic lipase. In this research, the kinetics of interesterification of triglyceride with methyl acetate and Candida antactica to produce biodiesel was further studied. The kinetic model based on reversible Ping Pong Bi Bi mechanism was constructed. The model was applied to the experimental results of interestesterification behavior done by others researchers. The model can describe the interesterification behavior of the reactants and products in their experimental results. The results from this research are kinetics constant for every reaction. Generally, kinetics constant have good sensitivity.

Keywords: Kinetic model, Interesterification, Biodiesel, Lipase