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Evaluation of a Non-Thermal Plasma System for Remediation of NOx in Diesel Exhaust
Technical Paper
1999-01-3639
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
With ever more stringent CO2 emissions mandates, many automobile manufacturers are seeking the fuel economy benefits of diesel and lean-burn gasoline engines. At the same time the emissions standards that diesel and gasoline engines will have to meet in the next decade continue to reduce. Proposed solutions for meeting the stringent emissions standards all appear to have limitations, such as propensities to poisoning from sulfur, narrow operating temperature windows, and requirements for controls that give rapid rich excursions. Non-thermal plasma-catalyst systems have shown good performance in bench testing while being largely unaffected by these same issues. A two-stage system with a unique non-thermal plasma reactor combined with a zeolite-based catalyst has been constructed and shown to work over a wide temperature range. Exhaust from a 2.0 ℓ Opel Direct Injection (DI) diesel engine has been treated, achieving at least 60% nitrogen oxide (NOx) conversion efficiency at idle using a slipstream device. A larger device treats the entire exhaust of the Opel and achieves similar results. In both cases the exhaust is carried in heated lines before its composition is monitored simultaneously for NO and NOx with chemiluminescent NOx analyzers. Further characteristics of these systems as well as their possible application to production systems will be discussed.
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Authors
- Mark D. Hemingway - Delphi Automotive Systems
- Dave Goulette - Delphi Automotive Systems
- Gene Ripley - Delphi Automotive Systems
- Tom Thoreson - Delphi Automotive Systems
- Joachim Kupe - Delphi Automotive Systems
- Darrell Herling - Pacific Northwest National Laboratory
- Suresh Baskaran - Pacific Northwest National Laboratory
- Monty Smith - Pacific Northwest National Laboratory
- Del Lessor - Pacific Northwest National Laboratory
- Jud Virden - Pacific Northwest National Laboratory
Topic
Citation
Hemingway, M., Goulette, D., Ripley, G., Thoreson, T. et al., "Evaluation of a Non-Thermal Plasma System for Remediation of NOx in Diesel Exhaust," SAE Technical Paper 1999-01-3639, 1999, https://doi.org/10.4271/1999-01-3639.Also In
Non-Thermal Plasma for Exhaust Emission Control: Nox, Hc, and Particulates
Number: SP-1483; Published: 1999-10-25
Number: SP-1483; Published: 1999-10-25
References
- Urashima Kuniko Reduction of NOx from Combustion Flue Gases by Superimposed Barrier Discharge Plasma Reactors IEEE Transactions on Industry Applications 33 4 July Aug 1997
- Hoard John Balmer M. Lou Plasma-Catalysis for Diesel NOx Remediation Proceedings of the 1998 Diesel Engine Emission Reduction Workshop July 1998
- Penetrante B. M. NOx Conversion Chemistry in Plasma-Assisted Catalysis Proceedings of the 1998 Diesel Engine Emission Reduction Workshop July 1998
- Mizuno Akira NOx Removal Process Using Pulsed Discharge Plasma IEEE Transactions on Industry Applications 31 5 Sept Oct 1995
- Oda Tetsuji Nitric Oxide Decomposition in Air by Using Nonthermal Plasma Processing with Additives and Catalyst IEEE Transactions on Industry Applications 34 2 March April 1998
- Balmer M. Lou Tonkyn Russ Yoon I. Steven Hoard John Nitrogen Measurement from NOx Reduction for a Plasma Catalyst System in Simulated Diesel Exhaust Proceedings of the 1998 Diesel Engine Emission Reduction Workshop July 1998
- Gunderson M. Proceedings of the 1997 Diesel Engine Emission Reduction Workshop July 1997
- Feng R. Automated System for Power Measurement in Silent Discharge 1996
- Braun Dieter Behavior of NOx in Air-fed Ozonizers Pure & Appl. Chem. 60 5 741 746 1988 Great Britain
- Cross J. A. Electrostatics: Principles, Problems and Applications 23 IOP Publishing Limited 1987 Great Britain
- Yoshimura M. Bowen H K Electrical Breakdown Strength of Alumina at High Temperatures Journal of American Ceramic Society 64 7 404 410 1981