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:
Jul. 01, 2025
Filed:
Aug. 25, 2023
Applicant:
Marathon Petroleum Company Lp, Findlay, OH (US);
Inventors:
Assignee:
Marathon Petroleum Company LP, Findlay, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
F23N 1/02 (2006.01); F23N 3/00 (2006.01); F23N 5/24 (2006.01);
U.S. Cl.
CPC ...
F23N 1/022 (2013.01); F23N 3/002 (2013.01); F23N 5/242 (2013.01); F23N 2225/06 (2020.01); F23N 2900/05001 (2013.01); F23N 2900/05003 (2013.01);
Abstract
Systems and methods for reducing NOand CO emissions in a natural draft heater are disclosed. For example, the disclosure provides embodiments of systems and methods for controlling a draft value within a heater shell to deliver an amount of excess air to a burner to thereby maintain at least one of NOemissions not exceeding 0.025 lb/MMBtu (HHV) and CO emissions not exceeding 0.01 lb/MMBtu (HHV) in a natural draft heater.