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:
Oct. 31, 2023
Filed:
Dec. 30, 2021
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Nitin P. Chitgopekar, Hoffman Estates, IL (US);
William Yanez, Crystal Lake, IL (US);
Ka L. Lok, Buffalo Grove, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24H 8/00 (2022.01); F22B 1/18 (2006.01); F22D 1/28 (2006.01); F22D 1/12 (2006.01);
U.S. Cl.
CPC ...
F22B 1/1884 (2013.01); F22D 1/12 (2013.01); F22D 1/28 (2013.01);
Abstract
A method for improving the efficiency of a fired heater without an air preheat system is described. The method involves the use of an additional outboard convection section which is separate from the regular convection section of the fired heater. The outboard convection section uses the boiler feed water or an alternate cold sink to reduce the temperature of the flue gas, thereby improving the efficiency.