Systems and methods for selective catalytic reduction and/or ammonia slip catalyst sulfur protection

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United States of America

PATENT NO 12168951
APP PUB NO 20210324775A1
SERIAL NO

17235684

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Abstract

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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.

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Patent Owner(s)

  • CUMMINS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ancimer, Richard J Toronto, CA 39 161
Cunningham, Michael J Columbus, US 37 484
Luo, Jinyong Columbus, US 16 6
Tang, Yadan Columbus, US 4 1
Wang, Di Columbus, US 212 651
Yezerets, Aleksey Columbus, US 60 547
Zha, Yuhui Columbus, US 5 7

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