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:
Sep. 30, 2025
Filed:
Feb. 03, 2023
Johnson Matthey Public Limited Company, London, GB;
Johnson Matthey Catalysts (Germany) Gmbh, Redwitz an der Rodach, DE;
Maria Theresia Brandmair, Redwitz an der Rodach, DE;
Joseph Fedeyko, Wayne, PA (US);
Simon Knoll, Redwitz an der Rodach, DE;
Tilman Knorr, Redwitz an der Rodach, DE;
Johnson Matthey Public Limited Company, London, GB;
Johnson Matthey Catalysts (Germany) GmbH, Redwitz an der Rodach, DE;
Abstract
A method and exhaust gas treatment system for treating an ammonia-containing exhaust gas, for example a livestock house exhaust gas. The exhaust gas treatment system comprises a plurality of sorbent beds comprising a copper-doped small-pore zeolite, a valve system configured to establish independently for each sorbent bed fluid communication in a first or second configuration, wherein in the first configuration a flow of ammonia-containing exhaust gas contacts the sorbent bed at a temperature of less than 50° C. for storing the ammonia; and in the second configuration a flow of heated gas maintains the sorbent bed at a temperature of at least 300° C. for releasing and treating the ammonia in situ.