원문정보
초록
영어
The enzymatic production of biodiesel is being considered as an eco-friendly process. In lipase-catalyzed process, when alcohol concentration exceeded its solubility limits, lipase becomes deactivatedby the insoluble alcohol. Besides alcohol, glycerol accumulates in the reaction mixture to such an extent that the activity of the enzyme is suppressed. Fatty acid methyl ester(FAME) also could have an effect on the reaction rate of biodiesel production. However, most of the earlier kinetic studies have been described only with the inhibition by alcohol and/or substrate oil. In this study, a new kinetic model including the glycerol inhibition and FAME enhancement effects was proposed.
The kinetic equations were used to determine the feeding rate of alcohol for fed-batch biodiesel production. The proposed model was verified with the experimental results of the reaction of soybean oil. The proposed model can be used to determine the optimal alcohol feeding rate and to design a bioreactor for biodiesel production.