Application of Enzymatic Method for Production of Biofuel from Domestic Oily Seed Resources

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Fayyaz, Mohammad Reza | 2009

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39626 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Kariminia, Hamid Reza; Shayegan, Jalaleddin
Abstract:
The enzymatic transesterification of castor oil with methanol in a solvent free media is carried out using lipase catalyst. The influence of several operation conditions on the production of biodiesel was analyzed i.e. the amount of enzyme, molar ratio of methanol to castor oil, reaction temperature and reaction time. It is observed that with increase in molar ratio, reaction time and enzyme amount, the amount of product (biodiesel) increased. When reaction temperature increased, the amount of biodiesel increased firstly and then decreased. The optimum conditions for the reaction were as follows: enzyme amount 300 mg, molar ratio of methanol to oil 9:1 and temperature 55°C. The maximum methyl ester concentration was 2298 ppm after 72 hours reaction in optimum conditions.
Keywords:
Methanol ; Esterification ; Lipase Enzyme ; Castor Oil ; Biodiesel

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