Atmospheric Pressure Plasma for Diesel Particulate Matter Treatment: A Review

The purification of diesel exhaust gas is of great importance to prevent the atmospheric emission of major pollutants such as diesel particulate matter and nitrogen oxides and meet the environmental regulations. The atmospheric-pressure plasma is attracting increasing interest and is a promising aft...

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Bibliographic Details
Published in:Catalysts 2021-01, Vol.11 (1), p.29
Main Authors: Guo, Xiurong, Ha, Khanh Hop, Du, Danfeng
Format: Article
Language:English
Subjects:
Atmospheric pressure
Carbon
Catalysts
Chemical reactions
Diesel engines
Diesel fuels
diesel particulate matter
Efficiency
Emission
Emission standards
Energy consumption
Exhaust gases
Fluid filters
Gases
Hydrocarbons
Low temperature
Metal oxides
Nitrogen oxides
non-thermal plasma
NOx
Particulate emissions
Plasma
Pollutants
Pollution sources
Thermal plasmas
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Summary:The purification of diesel exhaust gas is of great importance to prevent the atmospheric emission of major pollutants such as diesel particulate matter and nitrogen oxides and meet the environmental regulations. The atmospheric-pressure plasma is attracting increasing interest and is a promising after-treatment technology for purifying diesel emission at low temperatures. However, when compared with the numerous publications on nitrogen oxides reduction by non-thermal plasma, using non-thermal plasma to particulate matter treatment have relatively limited. This work provides a comprehensive review of the plasma applications for diesel particulate matter treatment, including self-regenerating diesel particulate filter, diesel particulate matter removal, and simultaneous removal of diesel particulate matter and nitrogen oxides. The treatment of particulate matter from both simulated particulate matter sources and actual diesel engines also discussed in this comprehensive review. The challenge to this technology is limited energy consumption for plasma, which should be less than 5% (~30 J/L) of the overall fuel consumption. Until now, the atmospheric-pressure plasma has been no commercial implementation in diesel exhaust gas treatment, so more research is needed to be done in this field.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal11010029