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:
Feb. 18, 2020
Filed:
Dec. 21, 2017
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Juan C. Vargas, Kingston, GB;
Dharmesh C. Panchal, Surbiton, GB;
Assignee:
UOP LLC, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F28D 7/12 (2006.01); F28F 13/12 (2006.01); B01J 8/18 (2006.01); B01J 8/40 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
F28F 13/12 (2013.01); B01J 8/1818 (2013.01); B01J 8/1836 (2013.01); B01J 8/40 (2013.01); F28D 7/12 (2013.01); B01J 2208/00132 (2013.01); B01J 2208/00938 (2013.01); F28D 2021/0022 (2013.01);
Abstract
A process and apparatus for cooling catalyst in a catalyst cooler is disclosed. Nested tubes in the catalyst cooler have an undulating wall for improving heat transfer from the catalyst bed across the wall to the water inside the tubes. The outer tubes have an end wall at an inlet end opposed to an outlet end of a respective inner tube. The helical wall improves the efficiency of heat transfer to increase cooler duty for heavy feed stocks.