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:
Mar. 31, 2026

Filed:

Oct. 29, 2020
Applicant:

Exxonmobil Product Solutions Company, Spring, TX (US);

Inventors:

Xianchun Wu, Longview, TX (US);

Daryl Bitting, Longview, TX (US);

Kenny Randolph Parker, Afton, TN (US);

Michael Gary Polasek, Longview, TX (US);

David Eugene Slivensky, Tatum, TX (US);

Damon Ray Billodeaux, Longview, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 1/10 (2006.01); B01D 53/68 (2006.01); C10G 1/00 (2006.01); C10G 1/02 (2006.01);
U.S. Cl.
CPC ...
C10G 1/10 (2013.01); B01D 53/685 (2013.01); C10G 1/002 (2013.01); C10G 1/02 (2013.01); B01D 2251/404 (2013.01); B01D 2251/604 (2013.01); B01D 2251/606 (2013.01); B01D 2257/2025 (2013.01); B01D 2258/02 (2013.01); C10G 2300/1003 (2013.01); C10G 2300/201 (2013.01); C10G 2300/308 (2013.01); C10G 2300/4006 (2013.01);
Abstract

A pyrolysis method and system are provided that utilizes a multistage dehalogenation method to effectively remove halogen-containing compounds that are present in an initial recycled plastic feedstock. More particularly, the multistage dehalogenation system and process may involve physical sorting the plastic feedstock, melting and separating the feedstock, and subjecting the feedstock a two-stage pyrolysis with intermediate HCl removal.


Find Patent Forward Citations

Quick Actions:

Wu, Xianchun. (2026). Pyrolysis method and system for recycled waste (U.S. Patent No. 12590252). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12590252

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