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:
May. 18, 2021
Filed:
Jul. 18, 2018
Uop Llc, Des Plaines, IL (US);
Dharmesh Chunilal Panchal, Surbiton, GB;
Mohammad Reza Mostofi-Ashtiani, Naperville, IL (US);
Jagjit Singh Lall, Guildford, GB;
Paolo Palmas, Des Plaines, IL (US);
Michael S. Sandacz, Glen Ellyn, IL (US);
Sathit Kulprathipanja, Schaumburg, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A method for fluidizing a spent catalyst in a regenerator during a combustion process. The combustor includes a vessel and an air distributor. The air distributor includes an air grid and a plurality of first nozzles extending from the air grid. Spent catalyst is introduced into the vessel. Air is provided to the vessel via the plurality of first nozzles at a base combustion air rate. Additional air is provided to the vessels via a plurality of second nozzles of a fluffing air distributor at a fluffing air rate that is between 0.5 wt % and 10 wt % of the base combustion air rate to fluidize the catalyst. The second nozzles have outlets that are disposed below the air grid and above a bottom head of the vessel.