PROCESS FOR PRODUCTION OF BIODIESEL FUEL COMPOSITIONS AND EQUIPMENT THEREFOR

摘要

A process for the production of biodiesel fuel compositions, by which gum, phospholipids, and free fatty acids can be removed at a low cost via simple and easy steps to an extent necessary and sufficient for conducting the transesterification efficiently. Namely, a process for the production of biodiesel fuel compositions which comprises the first step of adding an organic acid to a crude vegetable oil to solidify the gum or phospholipids contained in the oil, the second step of removing the solidified gum or phospholipids from the oil, and the third step of subjecting the resulting oil to transesterification.