Patent ID: 8105398
Filing Date: 2012-01-31
Classification: C10L,C11B,C11C,C12P,Y02E,Y02P,Y02W

Abstract:
1. A process for the production of biodiesel ester based fuel from a concentration of algae comprising about 15% by weight solids, the process comprising: i) comminution of the concentration by solid or liquid shearing; ii) production of an organic layer comprising 30-40% fatty acid soaps via alkali lysing of the concentration; iii) collection of the organic layer via settling and skimming; iv) acidulation of the organic layer to produce free fatty acids; v) collection of the free fatty acids via settling and skimming; vi) addition of a C1-C8 alcohol to the fatty acid and heterogeneous esterification; and vii) refining of the resulting ester to produce an ester-based fuel.