Patent ID: 9273257
Filing Date: 2016-03-01
CPC Classification: B01J,C10G,C10L,Y02E,Y02P

Claim Text:
1. A method of continuously producing biodiesel comprising: (a) collecting a raw material, wherein said raw material comprises a mixture of fatty acids and oils; (b) contacting said raw material with glycerol and a Lewis acid catalyst in a first reaction chamber of a Continuously Stirred Tank Reactor System (CSTR System) at a selected pressure and temperature, wherein said contacting occurs in the absence of any added sulfuric acid, phosphoric acid, or alkyl/aryl sulfonic acids; (c) separating from the mixture product of step (b) water in a gas phase; (d) neutralizing the separated product of step (c) with a trace base; and (e) contacting the mixture product of steps (b), (c) and (d) with a second alcohol and an alkali catalyst in a second reaction chamber of said CSTR System to form said biodiesel comprising a fatty acid ester in about from 3 hours to about 4 hours, wherein the fatty acid ester conversion rate is at least about 95%.