Experimental Evaluation of Optimum Conditions for Biological Production of Biodiesel Using Castor Oil

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Ramazani, Safoura | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41506 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Kariminia, Hamid Reza
Abstract:
In this study, biodiesel production using enzymatic method for transestrification of castor oil was investigated. It was found that the yield of biodiesel production is affected by methanol to oil molar ratio, temperature, enzyme amount, water content and reaction time. Effective factors were determined first, using two-factorial design method. Methanol to oil molar ratio was found as the most effective factor. Response surface methodology coupled with central composite design was utilized for statistical modeling of enzymatic biodiesel production and the reaction time was found as a non-significant factor. In another attempt, three factors including methanol to oil molar ratio, temperature, enzyme amount were applied in central composite design with 5 levels. The highest yield of biodiesel production was predicted as methanol to oil molar ratio of 4.82:1.00, temperature of 40℃ and enzyme amount of 4.7% at water content of 10% in an 8 h reaction time
Keywords:
Castor Oil ; Lipase Enzyme ; Optimization ; Enzymatic Transestrification

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