Soot elimination and NO sub x and SO sub x reduction in diesel-engine exhaust by a combination of discharge plasma and oil dynamics

Journal Article · Sat Feb 01 04:00:00 EST 1992 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/27.120185· OSTI ID:5418179

Higashi, M; Uchida, S; Suzuki, N ^[1]; Fujii, K ^[2]

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1. Niles Parts Co., Ltd., Tokyo (JP)
2. Dept. of Electrical and Electronic Engineering, Ibaraki Univ., Ibaraki (JP)

This paper reports that the soot included in the exhaust gas from a 2-L diesel-engine car has been eliminated almost completely, independent of the load and cruising speed, by a plasma reactor mounted downstream of the engine exhaust and a novel technique using a combination of discharge plasma and oil dynamics. The NO{sub x} (NO{sub 2} + NO) and SO{sub x} components have also been reduced about 70% at a rotational speed of 1200 rpm and a load of 7 kg-m corresponding to about 60% of maximum torque (about 11.4 kg-m at 1200 rpm). The reduction rate of NO{sub x} in this investigation is about 20% more efficient than ordinary treatment using a discharge plasma only. In summary, the three major air pollutants - soot, NO{sub x}, and SO{sub x} - were simultaneously removed from diesel-engine exhaust gas.

• OSTI ID: 5418179
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 20:1; ISSN ITPSB; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330701* -- Emission Control-- Nitrogen Oxides
330703 -- Emission Control-- Sulfur Dioxide
330704 -- Emission Control-- Hydrocarbons
AIR POLLUTION
AUTOMOBILES
CHALCOGENIDES
DIESEL ENGINES
DYNAMICS
ENGINES
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INHIBITION
INTERNAL COMBUSTION ENGINES
MECHANICS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLASMA
POLLUTION
REMOVAL
SOOT
SULFUR COMPOUNDS
SULFUR OXIDES
VEHICLES
WASTES