Stability of Biodiesel from Non Edible Oils

Alternate fuels are being explored world over due to increasing environmental concern and diminishing petroleum reserves. In South Asian countries like India, Pakistan, Sri Lanka etc, biodiesel can be harvested and sourced from non-edible seed oils like Jatropha. In fact, implementation of biodiesel from Jatropha in India will lead to many advantages like providing green cover to wasteland, support to agricultural and rural economy, and reduction in dependency on imported crude oil and reduction in air pollution. Although biodiesel is environmentally compatible, it is susceptible to oxidation. The research on biodiesel stability has been put on top priority. Biodiesel from Jatropha curcas oil is relatively unstable on storage and forms residual products such as insoluble gums and aldehydes that may cause engine problems like filter clogging, injector coking, and corrosion of metal parts. The present paper deals with the the review of work done for stability of biodiesel from Jatropha curcas oil all over the world.