公开(公告)号：US12031107B2

公开(公告)日：2024-07-09

申请号：US17917514

申请日：2021-03-30

Applicant: BASF SE

Inventor： Paul Klingelhoefer ,  Michael Schier

IPC: C11C3/02 ,  C10L1/02 ,  C11C3/10

CPC classification number: C11C3/02 ,  C10L1/026 ,  C11C3/10 ,  C10L2200/0476 ,  C10L2200/0484

Abstract: A method of producing fatty acid alkyl ester from an organic oil source containing at least one free fatty acid, wherein the vegetable and/or animal waste oil has an acid number of at least 30 mg KOH/g and wherein the method comprises the steps of a) reacting the oil source with glycerol at a temperature, which is at least 110° C. and does not exceed 180° C. during the reaction, in the presence of a catalyst comprising at least methane sulfonic acid or the homo anhydride thereof; and b) acidic transesterification at a temperature, which is at least 110° C. and does not exceed 160° C. during the reaction of the reaction product from step a) with an alkanol; and c) isolating the fatty acid alkyl ester from the reaction product of step b).

公开(公告)号：US11591545B2

公开(公告)日：2023-02-28

申请号：US17284020

申请日：2019-10-07

Applicant: BASF SE

Inventor： Paul Klingelhoefer ,  Michael Koch ,  Michael Schier ,  Juergen Schneider

IPC: C11C3/02 ,  C07C67/08 ,  B01J31/02 ,  C07C67/03

Abstract: The present invention relates to a method of producing fatty acid alkyl ester from an organic oil source containing at least one free fatty acid, wherein the oil source has an acid number of at least 30 mg KOH/g oil source and wherein the method comprises the steps of a) reacting the oil source with glycerol at a temperature, which does not exceed 180° C. during the reaction, in the presence of a catalyst comprising at least one alkyl or aryl sulfonic acid or an homoanhydride thereof; and b) transesterification of the reaction product from step a) with an alkanol; and c) isolating the fatty acid alkyl ester from the reaction product of step b).