Title:
光反応による窒素酸化物の除去方法
Document Type and Number:
Japanese Patent JP4214221
Kind Code:
B2
Abstract:
To provide a method for efficiently nitrating nitrogen oxide in gas to remove the same without requiring a special apparatus using a novel photocatalyst comprising an easily available material, effective in a wide wavelength region and having a nitration capacity due to optical reaction markedly high with respect to nitrogen oxide as compared with titanium oxide.
A mixture of a nitrogen oxide-containing gas and oxygen is brought into contact with the photocatalyst, which comprises molten quartz subjected to hydrohalic acid treatment, while irradiated with radiation to nitrate nitrogen oxide by optical reaction to remove the same.
COPYRIGHT: (C)2005,JPO&NCIPI
Inventors:
Ryo Sakaguchi
Mitsuo Suzuki
Tetsuo Yazawa
Koji Kuraoka
Mitsuo Suzuki
Tetsuo Yazawa
Koji Kuraoka
Application Number:
JP2003083951A
Publication Date:
January 28, 2009
Filing Date:
March 25, 2003
Export Citation:
Assignee:
Patent Technology Development Co., Ltd.
National Institute of Advanced Industrial Science and Technology
National Institute of Advanced Industrial Science and Technology
International Classes:
B01D53/56; B01D53/74; B01D53/94; B01D53/86; B01J21/08; B01J27/12; B01J35/02
Domestic Patent References:
| JP2004290747A |
Attorney, Agent or Firm:
Aun Agata
Takatoshi Mizuguchi
Takatoshi Mizuguchi