logo

For the Inventor, By the Inventor

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.

Patent No.:

US 12767621 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Jul. 07, 2023

Process and catalysts for the production of ethylene and propylene from low-carbon syngas

Applicant:

Greyrock Technology, Llc, Sacramento, CA (US);

Inventors:

Robert Schuetzle, Sacramento, CA (US);

Dennis Schuetzle, Grass Valley, CA (US);

Assignee:

Greyrock Technology, LLC, Sacramento, CA (US);

Attorneys:

McKinney Law Group APC

Jeffrey A. McKinney

Primary Examiner:

Youngsul Jeong

Assistant Examiner:

Jason Y Chong

Int. Cl.
CPC ...
C07C 1/04 (2006.01); B01J 21/00 (2006.01); B01J 23/00 (2006.01); B01J 23/06 (2006.01); C07C 11/04 (2006.01); C07C 11/06 (2006.01);
U.S. Cl.
CPC ...
C07C 11/06 (2013.01); B01J 21/005 (2013.01); B01J 23/005 (2013.01); B01J 23/06 (2013.01); C07C 1/04 (2013.01); C07C 11/04 (2013.01);
Abstract

An improved process and catalysts for efficiently producing ethylene and propylene from low-carbon syngas is described. The process comprises contacting the low-carbon syngas with a ZnO-impregnated ZnMoOspinel catalyst or a ZnO-impregnated ZnAlOspinel catalyst; wherein the said catalysts demonstrate selectivities of up to about 80% for C2-C4 alkenes, at syngas H/CO ratios of 1.0 to 3.0, at temperatures of 250 to 425° C. (482-797° F.), at pressures of 150 to 350 psi, and at space velocities of 4,000 to 15,000 hrwith CO conversion efficiencies of 40-55%.

Find Patent Forward Citations

Schuetzle, Robert. (2026). Process and catalysts for the production of ethylene and propylene from low-carbon syngas (U.S. Patent No. 12767621). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12767621

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…