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:
Dec. 02, 2025
Filed:
Jun. 16, 2022
Uop Llc, Des Plaines, IL (US);
Cameron Kardel, Chicago, IL (US);
Donald Eizenga, Elk Grove Village, IL (US);
James W. Harris, Palatine, IL (US);
Jan De Ren, Bracknell, GB;
Zudtky Wisecarver, Des Plaines, IL (US);
Alexander Green, Palatine, IL (US);
William J. Whyman, Collinsville, OK (US);
Ian Clarke, Reading, GB;
UOP LLC, Rosemont, IL (US);
Abstract
A control process and apparatus provide feed forward control of stoichiometric proportions of hydrogen sulfide and ammonia to a thermal oxidizer and an ammonia scrubber, respectively. To account for unmeasured or uncalculated sulfur feed to the thermal oxidizer, a feed back measurement of sulfur dioxide and ammonia concentration is used to correct the flow rate of hydrogen sulfide to the thermal oxidizer and/or ammonia to the ammonia scrubber.