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:
Jun. 24, 2025

Filed:

Dec. 14, 2020
Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Joseph F. Dewilde, Midland, MI (US);

Adam Chojecki, Ghent, BE;

Alexey Kirilin, Terneuzen, NL;

Ewa A. Tocha-Bielak, Terneuzen, NL;

David F. Yancey, Midland, MI (US);

Glenn Pollefeyt, Wondelgem, BE;

Davy L.s. Nieskens, Terneuzen, NL;

Andrzej Malek, Midland, MI (US);

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/04 (2006.01); B01J 21/06 (2006.01); B01J 23/10 (2006.01); B01J 29/85 (2006.01); B01J 35/30 (2024.01); B01J 35/61 (2024.01);
U.S. Cl.
CPC ...
C07C 1/043 (2013.01); B01J 21/066 (2013.01); B01J 23/10 (2013.01); B01J 29/85 (2013.01); B01J 35/391 (2024.01); B01J 35/613 (2024.01); C07C 2521/06 (2013.01); C07C 2523/08 (2013.01); C07C 2523/10 (2013.01); C07C 2529/85 (2013.01);
Abstract

A process for preparing Cto Colefins includes introducing a feed stream of hydrogen gas and a carbon-containing gas into a reaction zone of a reactor and converting the feed stream into a product stream including Cto Colefins in the reaction zone in the presence of a hybrid catalyst and in a non-oxidative atmosphere. The hybrid catalyst includes a metal oxide catalyst component comprising gallium oxide and zirconia, and a microporous catalyst component having an 8 membered ring structure. The process also includes periodically introducing an oxidative atmosphere into the reaction zone.


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