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Title:
APPARATUS FOR CONCENTRATING METHANE GAS
Document Type and Number:
WIPO Patent Application WO/2005/089906
Kind Code:
A1
Abstract:
An apparatus for concentrating a methane gas, characterized in that it comprises an absorbing section wherein a digested gas containing a methane gas and carbon dioxide is supplied to a porous hollow yarn and carbon dioxide is dissolved in an absorbing fluid from the hollow yarn, a stripping degassing section wherein the absorbing fluid from the absorbing section flows therein from the absorbing section, and a gas except a methane gas and carbon dioxide is supplied into a porous hollow fiber, to thereby recover the carbon dioxide in the absorbing fluid having been dissolved in the absorbing section, through the hollow yarn, and a vacuum degassing section wherein the absorbing fluid from the stripping degassing section flows therein from the stripping degassing section, and the inside of a porous hollow yarn is evacuated, to thereby recover, through a hollow yarn, the carbon dioxide in the absorbing fluid and the gas having been incorporated into the absorbing fluid in the stripping degassing section.

Inventors:
Mori, Takashi (3-1-24-201, Tsuji Minami-ku, Saitama-sh, Saitama 26, 33600, JP)
Yamamoto, Hakuei (4-1-12-104, Oguradai Inzai-sh, Chiba 56, 27013, JP)
Miyake, Haruo (6-8-23-205, Kawaguchi Kawaguchi-sh, Saitama 15, 33200, JP)
Sawahara, Hiromichi c/o Tsukishima Kikai Co. Ltd. (17-15, Tsukuda 2-chome, Chuo-k, Tokyo 51, 10400, JP)
Application Number:
PCT/JP2005/004835
Publication Date:
September 29, 2005
Filing Date:
March 17, 2005
Export Citation:
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Assignee:
Tsukishima Kikai Co., Ltd. (17-15, Tsukuda 2-chome Chuo-k, Tokyo 51, 10400, JP)
Mori, Takashi (3-1-24-201, Tsuji Minami-ku, Saitama-sh, Saitama 26, 33600, JP)
Yamamoto, Hakuei (4-1-12-104, Oguradai Inzai-sh, Chiba 56, 27013, JP)
Miyake, Haruo (6-8-23-205, Kawaguchi Kawaguchi-sh, Saitama 15, 33200, JP)
Sawahara, Hiromichi c/o Tsukishima Kikai Co. Ltd. (17-15, Tsukuda 2-chome, Chuo-k, Tokyo 51, 10400, JP)
International Classes:
B01D3/32; B01D19/00; B01D53/14; B01D53/22; B01D61/00; B01D63/02; C02F1/20; C02F1/50; C02F1/76; C02F11/04; C07B63/00; C07B63/02; C07C7/11; C07C7/144; C07C9/04; C10L3/10; (IPC1-7): B01D53/14; B01D19/00
Foreign References:
JP2002363581A2002-12-18
JPH07185209A1995-07-25
JPH0228722U1990-02-23
JPH04118004A1992-04-20
Other References:
See also references of EP 1733781A1
Attorney, Agent or Firm:
Shiga, Masatake (2-3-1, Yaesu Chuo-k, Tokyo 53, 10484, JP)
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