Biodiesel Production from Cottonseed & Pongamia Oil (original) (raw)

2009

Abstract

Indiscriminate use of fossil fuels coupled with serious gaseous emissions has led to the search for alternative to diesel fuel in recent years. Among oil resources, cotton seed & Pongamia oil were choosen to investigate the kinetics of transesterifi cation for conversion to biodiesel (methyl/ethyl ester). The paper reviews the transesterification, effect of various parameters, oils and biodiesel properties with emphasis on the kinetics of reactions as well as techno-econom ic evaluation of biodiesel production. The kinetic data indicate that the reaction of conversion from Triglycerides (TG) to Diglycerides (DG) is fastest, slower from Diglycerides to Monoglyceride s (MG) & slowest from MG to methyl ester and glycerine. It is evidenced by the kinetic data that at 70°C & 6:1 molar ratio, the value of K 1 to K 3 increases while K 4 -K 6 decreases in the case of cotton seed oil while value of K 1 -K 6 decreases in the case of Pongamia oil giving only 56% and 69% yield of ME respectivel...

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