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Title:
METHOD AND DEVICE FOR GLOBAL WARMING PREVENTION
Document Type and Number:
WIPO Patent Application WO/1999/025461
Kind Code:
A1
Abstract:
A low-cost and practical global warming prevention method and device that can decompose N¿2?O contained in gases to be treated at a relatively low temperature. Specifically, a method and device for global warming prevention, wherein, a method of thermally or catalytically decomposing N¿2?O contained in gasses to be treated is characterized by comprising the steps of: dividing the flow of gases containing N¿2?O, preheating a part of the divided gas flows, thermally decomposing N¿2?O in the divided gas flow to form a heated gas flow, supplying the remaining unprocessed gas flows into the heated gas flow to continue decomposing N¿2?O to prevent global warming.

Inventors:
Tagawa, Katsushi (3-9 Atagocho 1-chome Nobeoka-shi Miyazaki, 882-0872, JP)
Miura, Koji (4-4-406, Midorigaoka 2-chome Nobeoka-shi Miyazaki, 882-0863, JP)
Kodama, Souhei (4-1-201, Midorigaoka 2-chome Nobeoka-shi Miyazaki, 882-0863, JP)
Shimizu, Atsushi (1397-308, Hirabarucho 1-chome Nobeoka-shi Miyazaki, 882-0866, JP)
Tanaka, Katsutoshi (2075-1-202, Nagahamacho 2-chome Nobeoka-shi Miyazaki, 882-0854, JP)
Application Number:
PCT/JP1998/005148
Publication Date:
May 27, 1999
Filing Date:
November 16, 1998
Export Citation:
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Assignee:
ASAHI KASEI KOGYO KABUSHIKI KAISHA (2-6 Dojimahama 1-chome Kita-ku Osaka-shi Osaka, 530-8205, JP)
Tagawa, Katsushi (3-9 Atagocho 1-chome Nobeoka-shi Miyazaki, 882-0872, JP)
Miura, Koji (4-4-406, Midorigaoka 2-chome Nobeoka-shi Miyazaki, 882-0863, JP)
Kodama, Souhei (4-1-201, Midorigaoka 2-chome Nobeoka-shi Miyazaki, 882-0863, JP)
Shimizu, Atsushi (1397-308, Hirabarucho 1-chome Nobeoka-shi Miyazaki, 882-0866, JP)
Tanaka, Katsutoshi (2075-1-202, Nagahamacho 2-chome Nobeoka-shi Miyazaki, 882-0854, JP)
International Classes:
B01D53/34; B01D53/56; B01D53/86; C07C51/31; C07C55/14; (IPC1-7): B01D53/56; B01D53/76; B01D53/86; C01B21/22
Foreign References:
JPH09508346A
JPH06277453A
JPS61257940A
JPS4914378A
JPH054027A
JPH05339003A
JPH07196639A
Other References:
See also references of EP 1040862A1
None
Attorney, Agent or Firm:
Hagino, Taira (Eikoh Patent Office ARK Mori Building, 28th floor 12-32, Akasaka 1-chome Minato-ku Tokyo, 107-6028, JP)
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