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.:
Date of Patent:
Mar. 15, 2022
Filed:
Jul. 23, 2020
Saudi Arabian Oil Company, Dhahran, SA;
Jgc Catalysts and Chemicals, Ltd., Kawasaki, JP;
Japan Cooperation Center Petroleum, Tokyo, JP;
Omer Refa Koseoglu, Dhahran, SA;
Robert Peter Hodgkins, Dhahran, SA;
Mitsunori Watabe, Kanagawa, JP;
Koji Uchida, Kanagawa, JP;
Saudi Arabian Oil Company, Dhahran, SA;
JGC Catalysts and Chemicals Ltd., Saiwai-ku, JP;
Japan Cooperation Center Petroleum, Tokyo, JP;
Abstract
Methods for interconverting olefins in an olefin-rich hydrocarbon stream include contacting the olefin-rich hydrocarbon stream with a catalyst system in an olefin interconversion unit to produce an interconverted effluent comprising ethylene and propylene. The contacting may be conducted at a reaction temperature from 450° C. to 750° C., a reaction pressure from 1 bar to 5 bar, and a residence time from 0.5 seconds to 1000 seconds. The catalyst system includes a framework-substituted beta zeolite. The framework-substituted beta zeolite has a *BEA aluminosilicate framework that has been modified by substituting a portion of framework aluminum atoms of the *BEA aluminosilicate framework with beta-zeolite Al-substitution atoms independently selected from the group consisting of titanium atoms, zirconium atoms, hafnium atoms, and combinations thereof.