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:
Apr. 25, 2023
Filed:
Oct. 05, 2021
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Joseph Craig Sharp, Sugarland, TX (US);
Wayne Spencer Jones, Houston, TX (US);
Kim Hougaard Pedersen, Virum, DK;
UMICORE AG & CO. KG, Hanau-Wolfgang, DE;
Abstract
An apparatus for reducing emissions that has a combustion turbine that feeds exhaust into a heat recovery steam generator (or HRSG) casing in which is positioned an emission reduction system featuring, in gas flow sequence, a first reducing reductant injector (RRI), as in an ammonia injection grid, for providing reducing reductant, preferably ammonia, into turbine exhaust travelling within the HRSG, followed by a first SCR reactor positioned downstream of the first RRI, followed by one of either (i) a turbulence generator (TG) as in a static mixer, or (ii) a second RRIas in a second ammonia injection grid, or (iii) an RRIwith integrated TG supported on injectors of RRI, then followed by a second SCR reactor. The emission reduction system preferably is free of a separate body oxidation catalyst or a separate body ammonia slip catalyst in an effort to utilize a limited volume within the HRSG. Methods of assembling and operating the ERS or T-H combination with ERS are also featured.