US 12,448,576 B2
Membrane-based treatment of biodiesel compositions to remove impurities
Nikolai M Kocherginsky, Urbana, IL (US)
Assigned to NEXT-ChemX Corporation, Austin, TX (US)
Filed by NEXT-ChemX Corporation, Austin, TX (US)
Filed on May 1, 2023, as Appl. No. 18/310,379.
Claims priority of provisional application 63/337,147, filed on May 1, 2022.
Prior Publication US 2023/0348801 A1, Nov. 2, 2023
Int. Cl. C10G 53/10 (2006.01); C10G 53/08 (2006.01)
CPC C10G 53/10 (2013.01) [C10G 53/08 (2013.01); C10G 2300/1055 (2013.01); C10G 2400/04 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method for the treatment of a biodiesel composition to remove impurities from the biodiesel composition, comprising the steps of:
contacting a first surface of a membrane support with a biodiesel composition comprising at least one impurity selected from the group consisting of glycerol, methanol and alkali metal compounds; and
contacting a second surface of the membrane support, opposite the first surface, with an acidic washing solution,
wherein the at least one impurity is transported from the biodiesel composition to the acidic washing solution to form a refined biodiesel product.