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. 17, 2024
Filed:
Apr. 20, 2021
Systems and methods for selective catalytic reduction and/or ammonia slip catalyst sulfur protection
Cummins Inc., Columbus, IN (US);
Di Wang, Columbus, IN (US);
Richard J. Ancimer, Toronto, CA;
Michael J. Cunningham, Columbus, IN (US);
Aleksey Yezerets, Columbus, IN (US);
Jinyong Luo, Columbus, IN (US);
Yadan Tang, Columbus, IN (US);
Yuhui Zha, Columbus, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
Systems, apparatuses, and methods include predicting a sulfur exposure of one or more copper-zeolite catalysts deployed in an exhaust aftertreatment system; comparing the predicted sulfur exposure to a predefined sulfur exposure threshold; and responsive to the determination, heating the exhaust aftertreatment catalyst to a predefined heat treatment temperature for a predefined time period to desulfate the one or more copper-zeolite catalysts.