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:
Jun. 28, 2022
Filed:
Apr. 28, 2021
Lummus Technology Llc, Bloomfield, NJ (US);
Liang Chen, Bloomfield, NJ (US);
Peter Loezos, Sugar Land, TX (US);
Rama Rao Marri, Katy, TX (US);
Bryan Tomsula, Bloomfield, NJ (US);
Jon A. Hood, Bloomfield, NJ (US);
Hardik Singh, Bloomfield, NJ (US);
Michael Dorsey, Bloomfield, NJ (US);
Justin Breckenridge, Bloomfield, NJ (US);
LUMMUS TECHNOLOGY LLC, Bloomfield, NJ (US);
Abstract
Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.