公开(公告)号：US12195696B2

公开(公告)日：2025-01-14

申请号：US18526669

申请日：2023-12-01

Applicant: ReGen III Corp.

Inventor： Gordon Driedger ,  Zachary Moore

IPC: C10M175/00 ,  C10G67/04 ,  C10G67/14 ,  C10M175/02

Abstract: A method for re-refining used oils comprises contacting feedstock comprising purified used oil with extraction solvent to perform continuous liquid-liquid solvent extraction, to produce an extract stream comprising the extraction solvent and an extract dissolved in the extraction solvent. The feedstock and the extraction solvent are agitated by a variable speed agitator during the solvent extraction at a selected agitation speed. The extract is separated from the extraction solvent and subjected to a continuous flow liquid phase hydrogenation treatment to produce an oil product. A system for performing the method includes a purification unit for purifying the used oil; an extraction column for extracting the extract from the feedstock; and a continuous flow liquid phase hydrogenation unit. The extraction column comprises an agitator configured to agitate the feedstock and the extraction solvent flowing through the extraction column at a variable agitation speed.

公开(公告)号：US20240132799A1

公开(公告)日：2024-04-25

申请号：US18526669

申请日：2023-12-01

Applicant: ReGen III Corp.

Inventor： Gordon Driedger ,  Zachary Moore

IPC: C10M175/00 ,  C10G67/04 ,  C10G67/14 ,  C10M175/02

CPC classification number: C10M175/005 ,  C10G67/0436 ,  C10G67/14 ,  C10M175/0033 ,  C10M175/0041 ,  C10M175/02 ,  C10G2300/1007 ,  C10G2300/202 ,  C10G2300/302 ,  C10G2300/802 ,  C10G2400/10

Abstract: A method for re-refining used oils comprises contacting feedstock comprising purified used oil with extraction solvent to perform continuous liquid-liquid solvent extraction, to produce an extract stream comprising the extraction solvent and an extract dissolved in the extraction solvent. The feedstock and the extraction solvent are agitated by a variable speed agitator during the solvent extraction at a selected agitation speed. The extract is separated from the extraction solvent and subjected to a continuous flow liquid phase hydrogenation treatment to produce an oil product. A system for performing the method includes a purification unit for purifying the used oil; an extraction column for extracting the extract from the feedstock; and a continuous flow liquid phase hydrogenation unit. The extraction column comprises an agitator configured to agitate the feedstock and the extraction solvent flowing through the extraction column at a variable agitation speed.

公开(公告)号：US11873463B2

公开(公告)日：2024-01-16

申请号：US17426223

申请日：2020-02-05

Applicant: ReGen III Corp.

Inventor： Gordon Driedger ,  Zachary Moore

IPC: C10M175/00 ,  C10G67/04 ,  C10G67/14 ,  C10M175/02

CPC classification number: C10M175/005 ,  C10G67/0436 ,  C10G67/14 ,  C10M175/0033 ,  C10M175/0041 ,  C10M175/02 ,  C10G2300/1007 ,  C10G2300/202 ,  C10G2300/302 ,  C10G2300/802 ,  C10G2400/10

Abstract: A method for re-refining used oils comprises contacting feedstock comprising purified used oil with extraction solvent to perform continuous liquid-liquid solvent extraction, to produce an extract stream comprising the extraction solvent and an extract dissolved in the extraction solvent. The feedstock and the extraction solvent are agitated by a variable speed agitator during the solvent extraction at a selected agitation speed. The extract is separated from the extraction solvent and subjected to a continuous flow liquid phase hydrogenation treatment to produce an oil product. A system for performing the method includes a purification unit for purifying the used oil; an extraction column for extracting the extract from the feedstock; and a continuous flow liquid phase hydrogenation unit. The extraction column comprises an agitator configured to agitate the feedstock and the extraction solvent flowing through the extraction column at a variable agitation speed.