IMPROVED PROCESS FOR THE PREPARATION OF FATTY ACID METHYL ESTERS (BIODIESEL) FROM TRIGLYCERIDE OILS USING ECO-FRIENDLY SOLID BASE CATALYST

摘要

This invention relates to an improved process for the preparation of green fatty acid methyl esters (FAME; commonly called as biodiesel) from different triglyceride oils using mixed metal oxides derived from layered double hydroxides (referred here as LDHs) as reusable solid heterogeneous base catalysts. This process uses very low alcohol:oil molar ratio and catalyst and/or products are easily separable after the reaction through simple physical processes. The properties of thus obtained biodiesel meet the standard biodiesel values and can directly be used as transport fuel.