Title:
METHOD OF TREATING EXHAUST GAS AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2005/065805
Kind Code:
A1
Abstract:
A method of purifying an exhaust gas containing nitrogen oxides; and an apparatus therefor. The apparatus includes atmospheric pressure low temperature nonequilibrium plasma reactor (1) for converting air to radical gas; line (22) for feeding the radical gas to oxidation reaction zone (10); line (23) for feeding the exhaust gas to the oxidation reaction zone (10) separately from the radical gas formation line; the oxidation reaction zone (10) for oxidizing the nitrogen oxides contained in the exhaust gas with the radical gas into oxidized gas containing NO2; and reduction reaction zone (11) for bringing the oxidized gas into contact with a reducing agent solution so as to effect reduction reaction of NO2 into nitrogen gas (N2), wherein the oxidation reaction zone (10) and the reduction reaction zone (11) are directly connected to each other. Thus, there are provided an exhaust gas treating apparatus and treating method that suppress the occurrence of reaction by-products (for example, N2O, HNO2, HNO3, NO3- and CO) in the exhaust gas, realizing high efficiency.
Inventors:
OKUBO MASAAKI
YAMAMOTO TOSHIAKI
KUROKI TOMOYUKI
YAMAMOTO TOSHIAKI
KUROKI TOMOYUKI
Application Number:
PCT/JP2004/017049
Publication Date:
July 21, 2005
Filing Date:
November 17, 2004
Export Citation:
Assignee:
OSAKA IND PROMOTION ORG (JP)
OKUBO MASAAKI
YAMAMOTO TOSHIAKI
KUROKI TOMOYUKI
OKUBO MASAAKI
YAMAMOTO TOSHIAKI
KUROKI TOMOYUKI
International Classes:
B01D53/56; B01D53/75; B01D53/79; F01N3/08; (IPC1-7): B01D53/56; B01D53/75; F01N3/08
Foreign References:
| JPS6168126A | 1986-04-08 |
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (OAP TOWER 8-30, Tenmabashi 1-chome, Kita-ku, Osaka-sh, Osaka 26, JP)
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