Evaluation of Corona Reactors of Several Geometries for a Plasma Assisted Nitrogen Oxide Emission Reduction Device

Conference · Wed Aug 09 04:00:00 EDT 2000

OSTI ID:950753

Herling, Darrell R; Smith, Monty R; Hemingway, Mark D; Goulette, David; Silvis, Thomas W

Proposed vehicle emissions regulations for the near future have prompted automotive manufactures and component suppliers to focus heavily on developing more efficient exhaust aftertreatment devices to lower emissions from spark and compression ignition engines. One of the primary pollutants from lean-burn engines, especially from diesels, are oxides of nitrogen (NOx). Current three-way catalytic converters will not have adequate performance to meet future emission reduction requirements. Therefore, there is a need for researchers and engineers to develop efficient exhaust aftertreatment devices that will reduce NOx emissions from lean-burn engines. These devices must have very high conversion of NOx gases, be unaffected by exhaust-gas impurity such as sulfur, and have minimal impact on vehicle operations and fuel economy. An effective technology for NOx control that is currently receiving a lot of attention is a non-thermal plasma system. This system is comprised of a two-stage corona generation device (plasma reactor) and reduction catalyst that reduces nitric oxide and nitrogen dioxide emissions to nitrogen.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 950753
• Report Number(s): PNNL-SA-33505; VT0401000
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
CATALYSTS
CATALYTIC CONVERTERS
COMPRESSION
ENGINEERS
ENGINES
EVALUATION
FUEL CONSUMPTION
GASES
IGNITION
LUBRICANTS
NITRIC OXIDE
NITROGEN
NITROGEN DIOXIDE
NITROGEN OXIDES
NOx reduction
NTP
Non-Thermal Plasma
OXIDES
PLASMA
POLLUTANTS
REGULATIONS
SULFUR
emissions