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Title: Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature

Abstract

An aftertreatment system includes a first oxidation catalyst, a second oxidation catalyst, and a turbocharger. The first oxidation catalyst is upstream of the turbocharger and includes a first oxidation catalyst formulation. The second oxidation catalyst is downstream of the turbocharger and includes a second oxidation catalyst formulation different than the first oxidation catalyst formulation. The second oxidation catalyst formulation is configured to promote conversion of nitric oxide (NO) to nitrogen dioxide (NO 2).

Inventors:
; ;
Issue Date:
Research Org.:
Cummins Inc., Columbus, IN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1467418
Patent Number(s):
10,022,667
Application Number:
15/663,457
Assignee:
Cummins Inc. (Columbus, IN)
DOE Contract Number:  
EE0006795
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017 Jul 28
Country of Publication:
United States
Language:
English

Citation Formats

Zha, Yuhui, Heichelbech, John K., and Cunningham, Michael J. Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature. United States: N. p., 2018. Web.
Zha, Yuhui, Heichelbech, John K., & Cunningham, Michael J. Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature. United States.
Zha, Yuhui, Heichelbech, John K., and Cunningham, Michael J. Tue . "Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature". United States. https://www.osti.gov/servlets/purl/1467418.
@article{osti_1467418,
title = {Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature},
author = {Zha, Yuhui and Heichelbech, John K. and Cunningham, Michael J.},
abstractNote = {An aftertreatment system includes a first oxidation catalyst, a second oxidation catalyst, and a turbocharger. The first oxidation catalyst is upstream of the turbocharger and includes a first oxidation catalyst formulation. The second oxidation catalyst is downstream of the turbocharger and includes a second oxidation catalyst formulation different than the first oxidation catalyst formulation. The second oxidation catalyst formulation is configured to promote conversion of nitric oxide (NO) to nitrogen dioxide (NO2).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}

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