APPARATUS FOR CONCENTRATING METHANE GAS

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 (JP)
YAMAMOTO HAKUEI (JP)
MIYAKE HARUO (JP)
SAWAHARA HIROMICHI (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 (JP)
MORI TAKASHI (JP)
YAMAMOTO HAKUEI (JP)
MIYAKE HARUO (JP)
SAWAHARA HIROMICHI (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:

JP2002363581A	2002-12-18
JPH07185209A	1995-07-25
JPH0228722U	1990-02-23
JPH04118004A	1992-04-20

Other References: