Plasma/catalyst system for reduction of NOx in diesel engine exhaust

Bae Hyeock Chun, Hyeong Sang Lee, Chang Soo Nam, Kwang Min Chun, Jae Hong Ryu, Kwan Young Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

NOx reduction by a plasma/catalyst system was tested with modeled gas and real exhaust gas. Ag/Al2O3 was used as the catalyst. The oxidation of NO to NO2 by the plasma was increased as HC concentration and input energy density increase. The presence of H2O in the reactant gas led to the production of acid by plasma. The catalytic activity for NOx reduction was enhanced by the assistance of plasma especially in the lower temperature region. This activity was a little suppressed in the presence of H2O, but the acid was not detected in the effluent gas treated by the plasma/catalyst system. The NOx conversion to N2 was evaluated by a gas chromatography in the model gas with helium as the balance gas. The result in helium balance gas showed the selectivity to N2 depended on the catalyst temperature and was also enhanced by the assistance of plasma. The 50% of NOx removal from the diesel exhaust gas was achieved by the plasma /catalyst system.

Original languageEnglish
Title of host publicationSAE Technical Papers
DOIs
Publication statusPublished - 2000 Dec 1
EventInternational Fall Fuels and Lubricants Meeting and Exposition - Baltimore, MD, United States
Duration: 2000 Oct 162000 Oct 19

Other

OtherInternational Fall Fuels and Lubricants Meeting and Exposition
CountryUnited States
CityBaltimore, MD
Period00/10/1600/10/19

Fingerprint

Exhaust systems (engine)
Diesel engines
Plasmas
Catalysts
Gases
Exhaust gases
Helium
Acids
Catalyst selectivity
Gas chromatography
Effluents
Catalyst activity
Oxidation
Temperature

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Cite this

Chun, B. H., Lee, H. S., Nam, C. S., Chun, K. M., Ryu, J. H., & Lee, K. Y. (2000). Plasma/catalyst system for reduction of NOx in diesel engine exhaust. In SAE Technical Papers https://doi.org/10.4271/2000-01-2897

Plasma/catalyst system for reduction of NOx in diesel engine exhaust. / Chun, Bae Hyeock; Lee, Hyeong Sang; Nam, Chang Soo; Chun, Kwang Min; Ryu, Jae Hong; Lee, Kwan Young.

SAE Technical Papers. 2000.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chun, BH, Lee, HS, Nam, CS, Chun, KM, Ryu, JH & Lee, KY 2000, Plasma/catalyst system for reduction of NOx in diesel engine exhaust. in SAE Technical Papers. International Fall Fuels and Lubricants Meeting and Exposition, Baltimore, MD, United States, 00/10/16. https://doi.org/10.4271/2000-01-2897
Chun, Bae Hyeock ; Lee, Hyeong Sang ; Nam, Chang Soo ; Chun, Kwang Min ; Ryu, Jae Hong ; Lee, Kwan Young. / Plasma/catalyst system for reduction of NOx in diesel engine exhaust. SAE Technical Papers. 2000.
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