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:
Nov. 14, 2017
Filed:
Sep. 22, 2014
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventor:
Fariha Avais, Mount Prospect, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 51/02 (2006.01); B01J 8/28 (2006.01); C10G 11/18 (2006.01);
U.S. Cl.
CPC ...
C10G 51/026 (2013.01); B01J 8/28 (2013.01); C10G 11/182 (2013.01); C10G 11/187 (2013.01); B01J 2208/00796 (2013.01);
Abstract
A method is provided for increasing production of middle distillate hydrocarbons from conversion of a heavy hydrocarbon feed in a fluid catalytic cracking system having a primary riser and a secondary riser, wherein the method comprises providing regenerated catalyst to the primary riser and operating the primary riser under severe conditions and providing spent catalyst to the secondary riser and operating the secondary riser under moderate conditions.