The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 17, 2026

Filed:

Apr. 06, 2023
Applicant:

Uop Llc, Des Plaines, IL (US);

Inventors:

Anton N. Mlinar, Vernon Hills, IL (US);

Stanley J. Frey, Palatine, IL (US);

Geoffrey W. Fichtl, Chicago, IL (US);

Matthew C. Cole, Evanston, IL (US);

Charles P. Luebke, Mount Prospect, IL (US);

Joe R. Haas, Northbrook, IL (US);

Assignee:

UOP LLC, Des Plaines, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 53/04 (2006.01); B01D 3/14 (2006.01); B01D 3/34 (2006.01); C10B 53/02 (2006.01); C10C 5/00 (2006.01); C10G 21/28 (2006.01);
U.S. Cl.
CPC ...
B01D 3/343 (2013.01); B01D 3/143 (2013.01); B01D 3/148 (2013.01); B01D 3/34 (2013.01); C10C 5/00 (2013.01); C10G 21/28 (2013.01); C10G 53/04 (2013.01); C10B 53/02 (2013.01); C10G 2300/1011 (2013.01);
Abstract

A solvent stripping process has been developed for separating the pyrolysis oil in an extracted phase feed stream from an organic solvent used for extraction. The process involves using a stripping solvent to strip the organic solvent from the pyrolysis oil in a stripping column. The stripping column bottom stream comprising the pyrolysis oil and part of the stripping solvent can be separated into a vapor stream comprising the stripping solvent and a liquid stream comprising the pyrolysis and a portion of the stripping solvent. The stripping column overhead stream comprising the stripping solvent and the organic solvent can be separated in a recovery column into a recovery column overhead stream comprising the stripping solvent and a recovery column bottom stream comprising the organic solvent.


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