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:
May. 09, 2023
Filed:
May. 30, 2018
Thyssenkrupp Industrial Solutions Ag, Essen, DE;
Thyssenkrupp Ag, Essen, DE;
Jens Mathiak, Castrop-Rauxel, DE;
Michael Groves, Gevelsberg, DE;
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, Essen, DE;
THYSSENKRUPP AG, Essen, DE;
Abstract
A process for catalytic oxidation of ammonia gas by way of an oxygen-containing gas in a presence of a noble metal-containing catalyst may be employed to give nitrogen monoxide. A temperature of an ammonia/air mixed gas may be optimized in respect of nitrogen monoxide selectivity of the reaction before contact with the catalyst. Examination of catalytic NHoxidation according to 4NH+5O→4NO+6HO revealed that an optimum mode of operation of an NHburner in an HNOplant is not to be achieved by maintenance of a constant gauze temperature of the catalyst gauze by automatic setting of the NH:air ratio. Rather, there is an optimum temperature for each process condition that should be set not by changing the NH:air ratio but instead by altering the temperature of the NH/air mixed gas before contact with the catalyst gauzes.