Patent · US Active

Method of producing biodiesel

US11591545B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

BASF SE

Inventors

Paul Klingelhoefer · Mannheim, DE
Michael Koch · Speyer, DE
Michael Schier · San Francisco, US
Juergen Schneider · Freinsheim, DE

Key dates

Filing date	Oct 7, 2019
Grant date	Feb 28, 2023
Priority date	—
Expiry date	Oct 7, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.