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:
Nov. 10, 2026

Filed:

Jan. 06, 2023
Applicant:

Exxonmobil Chemical Patents Inc., Baytown, TX (US);

Inventors:

Kapil Kandel, Humble, TX (US);

Saurabh S. Maduskar, Houston, TX (US);

Clara M. Buchanan, Houston, TX (US);

Bryan A. Patel, Jersey City, NJ (US);

Derrick B. Callander, Humble, TX (US);

Steven M. Slack, Humble, TX (US);

David H. Hopkins, Escondido, CA (US);

Mei C. Soo, Cypress, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 1/02 (2006.01); B01D 53/02 (2006.01); B01D 53/14 (2006.01); C07C 4/04 (2006.01); C08J 11/12 (2006.01); C10B 49/22 (2006.01); C10B 53/07 (2006.01); C10B 57/14 (2006.01);
U.S. Cl.
CPC ...
C10G 1/02 (2013.01); B01D 53/02 (2013.01); B01D 53/1418 (2013.01); C07C 4/04 (2013.01); C08J 11/12 (2013.01); C10B 49/22 (2013.01); C10B 53/07 (2013.01); C10B 57/14 (2013.01); B01D 2256/24 (2013.01); B01D 2257/20 (2013.01); C08J 2300/30 (2013.01); C10G 2300/1003 (2013.01); C10G 2400/20 (2013.01);
Abstract

Systems and methods are provided for conversion of polymers (such as plastic waste) to olefins and/or feedstocks that can be further processed for formation of olefins, fuels, and/or other products. The systems and methods can include an optional thermal dehalogenation stage followed by an initial pyrolysis stage where a plastic feedstock is at least partially converted to lower boiling products. Prior to, during, and/or after the pyrolysis stage, one or more contaminant removal stages can be used in order to reduce the content of halides and/or other contaminants in the pyrolysis effluent. This can allow at least a portion of the pyrolysis effluent, such as a gas phase portion and/or a liquid phase portion of the pyrolysis effluent, to have a sufficiently low contaminant content to be used as part of a feed to a conventional petrochemical process.


Find Patent Forward Citations

Quick Actions:

Kandel, Kapil. (2026). Contaminant removal during integrated plastic recycle (U.S. Patent No. 12790548). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12790548

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