ScholarWorks@숙명여자대학교

초록

The use of lipases in biodiesel production has gained attention as a more sustainable and efficient alternative to chemical catalysts, attributed to their operational reusability and minimal environmental impact. As an innovative approach in this study, a blended alcohol composed of 20 mol% methanol and 80 mol% 1-butanol was employed as the acyl acceptor in the enzymatic synthesis of biodiesel. Lipozyme TL IM-catalyzed transesterification was conducted in a packed bed reactor to produce biodiesel from soybean oil and the blended alcohol, using tert-butanol as the solvent. The effects of tert-butanol amount, temperature, and water content on biodiesel synthesis were investigated as a function of the reaction time. Optimum conditions were a tert-butanol to soybean oil volume ratio of 1:3. a temperature of 30 degrees C, and a water content of 0.3% (based on the total substrate weight). The highest biodiesel yield of approximately 93% was obtained under the optimum conditions. In addition, a biodiesel yield of approximately 80% was obtained in the continuous process over 60 reaction cycles.

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