Title :
Nonthermal plasma processing for dilute VOCs decomposition
Author :
Oda, Tetsuji ; Takahahshi, Tadashi ; Yamaji, Kei
Author_Institution :
Dept. of Electr. Eng., Univ. of Tokyo, Japan
Abstract :
The performance of nonthermal plasma processing for dilute (100 or 1000 ppm) trichloroethylene (TCE) decomposition in air was investigated in combination with titania (TiO2) catalysts. One type of catalyst consisted of 2-3-mm-diameter spherical titania pellets coated with vanadium oxide, V2O5. Homemade various-sized titania pellets sintered at 400°C and 1000°C were also tested. Gas chromatograph mass spectrometer analysis of the plasma-processed gas suggested that the catalyst was effective in enhancing TCE-decomposing energy efficiency, but the catalyst caused the generation of some byproducts. These results indicate that the size and surface state of the catalytic particulates were very important in determining the barrier discharge mode, and the energy efficiency of the plasma process was strongly dependent on the discharge mode
Keywords :
air pollution control; catalysts; chromatography; mass spectroscopy; organic compounds; plasma materials processing; sintering; titanium compounds; vanadium compounds; 1000 C; 2 to 3 mm; 400 C; TiO2; TiO2 catalysts; V2O5; V2O5 coating; air pollution control; barrier discharge mode; byproducts; catalytic particulates; dilute trichloroethylene decomposition; energy efficiency; flue gas cleaning; gas chromatograph mass spectrometer; nonthermal plasma processing; plasma-processed gas; sintered pellets; spherical titania pellets; surface state; titania catalysts; vanadium oxide coating; volatile organic compounds decomposition; Combustion; Electron beams; Energy efficiency; Flue gases; Inductors; Plasma applications; Plasma chemistry; Plasma materials processing; Surface discharges; Volatile organic compounds;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2002.1003443
