Title :
A novel plasma reactor for NOx control using photocatalyst and hydrogen peroxide injection
Author :
Kim, Hyun Ha ; Tsunoda, Kazuhiko ; Katsura, Seiichiro ; Mizuno, Akira
Author_Institution :
Dept. of Ecological Eng., Toyohashi Univ. of Technol., Japan
Abstract :
The authors have developed a new type of plasma reactor combining discharge plasma with a photocatalyst (TiO2) which improves the performance of NOx removal. This reactor is designated as a plasma-driven catalyst (PDC) reactor. The authors found that hydrogen peroxide (H2O2) is a very effective additive in this PDC reactor and the formation of undesirable by-product (such as O 3, N2O) was reduced significantly. Comparative test results showed that the combination of discharge plasma with TiO 2 catalyst is a very effective method in NOx, removal over a conventional wire-cylinder reactor. NOx was effectively oxidized to HNO3 on the TiO2 catalyst and trapped on the catalyst surface. Specific energy consumption of this de-NOx process is significantly reduced, in particular, with the injection of H2O2
Keywords :
air pollution control; catalysis; catalysts; corona; nitrogen compounds; plasma devices; H2O2; NO; NOx control; NOx removal; TiO2; TiO2 catalyst; de-NOx process; discharge plasma; hydrogen peroxide injection; photocatalyst injection; plasma-driven catalyst reactor; specific energy consumption; Atmospheric-pressure plasmas; Chemical technology; Energy consumption; Inductors; Industry Applications Society; Plasma applications; Plasma chemistry; Plasma materials processing; Plasma temperature; Surface discharges;
Journal_Title :
Industry Applications, IEEE Transactions on
