Title:
炭酸ガスの地中貯留システム
Document Type and Number:
Japanese Patent JP4924140
Kind Code:
B2
Abstract:
[PROBLEMS] To effect long-term stable reservation/isolation of carbon dioxide in an aquifer by pressure feeding into the aquifer the carbon dioxide in the state of being dissolved in a solvent (seawater or water) at high concentration close to the level of saturation concentration. [MEANS FOR SOLVING PROBLEMS] The system comprises a carbon dioxide compressor (2) for compressing carbon dioxide to a liquid or supercritical condition; a pressure feeding pump (3) for effecting compression/delivery of a solvent consisting of seawater and/or water; one or more dissolving tanks (4) for allowing injection of compressed carbon dioxide and solvent therein to thereby cause the solvent to dissolve the carbon dioxide into a carbon dioxide dissolution water; and an injection well (5) extending from the ground surface to the aquifer, used to press fit the resultant carbon dioxide dissolution water into the underground aquifer. Each of the dissolving tanks (4) has a hermetically sealed container (10) provided at its inferior portion with a carbon dioxide fill port (11) for injection of carbon dioxide fed from the carbon dioxide compressor (2) and with a solvent fill port (12) for injection of the solvent fed from the solvent pressure feeding pump (3). The container (10) is filled with a granular filler (16).
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Inventors:
Yuji Sekine
Hirokazu Kishi
Masayuki Masuda
Hirokazu Kishi
Masayuki Masuda
Application Number:
JP2007082078A
Publication Date:
April 25, 2012
Filing Date:
March 27, 2007
Export Citation:
Assignee:
THE TOKYO ELECTRIC POWER COMPANY,INCORPORATED
International Classes:
B01J19/00; B01F1/00
Domestic Patent References:
| JP6170215A | ||||
| JP10146523A | ||||
| JP2001348584A |
Attorney, Agent or Firm:
Hisashi Izumi