Carbon dioxide recovery device and carbon dioxide recovery system

• US 9,283,515 B2
• Filed: 05/07/2012
• Issued: 03/15/2016
• Est. Priority Date: 05/11/2011
• Status: Active Grant

• Current Assignee: Kawasaki Jukogyo Kabushiki Kaisha
• Original Assignee: Kawasaki Jukogyo Kabushiki Kaisha
• Inventors: Ogino, Tomoyuki
• Primary Examiner(s): Lawrence, Frank
• Application Number:
  US14/117,235
• Publication Number:
  US 20140216263A1
• Time in Patent Office: 1,408 Days
• Field of Search: 961/31, 961/43, 961/53, 962/34, 962/42, 423/226, 423228-230
• US Class Current: 1/1
• CPC Class Codes: B01D 2253/25 Coated, impregnated or composite adsorbents
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 53/1425 Regeneration of liquid absorbents
• CPC Class Codes: B01D 53/1475 Removing carbon dioxide
• CPC Class Codes: B01D 53/62 Carbon oxides
• CPC Class Codes: C01B 32/50 Carbon dioxide
• CPC Class Codes: Y02C 20/40 of CO2
• CPC Class Codes: Y02P 20/151 Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Abstract

A carbon dioxide recovery device can perform a carbon dioxide adsorption treatment, a carbon dioxide separation treatment, a carbon dioxide adsorbing material repair treatment, and a carbon dioxide adsorbing material manufacture treatment. The carbon dioxide recovery device includes: a casing including a fluid treatment passage, a gas supply port through which a fluid is supplied to the fluid treatment passage, and a gas exhaust port through which the gas supplied to the fluid treatment passage is discharged; a plurality of housing tanks provided in a fluid treatment passage and each configured to house carbon dioxide adsorbing materials K; and an adsorbing liquid supplying portion configured to supply an adsorbing liquid to the housing tanks. Passage opening-closing mechanisms configured to store the adsorbing liquid in or discharge the adsorbing liquid from the housing tanks are respectively provided at bottom portions of the housing tanks.

Claims

1. A carbon dioxide recovery device configured to:

cause a carbon dioxide adsorbing material to adsorb carbon dioxide contained in a treatment target gas, the carbon dioxide adsorbing material being prepared by causing a porous substance to support an adsorbing liquid for adsorbing the carbon dioxide;

separate the carbon dioxide adsorbed by the carbon dioxide adsorbing material; and

causing the carbon dioxide adsorbing material or the porous substance to support the adsorbing liquid,

the carbon dioxide recovery device comprising;

a casing including

a fluid treatment passage through which a fluid flows,

one or two or more gas supply ports through which a gas is supplied to the fluid treatment passage, and

one or two or more gas exhaust ports through which the gas supplied to the fluid treatment passage is discharged;

a housing tank provided in the fluid treatment passage and configured to house the carbon dioxide adsorbing material; and

an adsorbing liquid supplying portion configured to supply the adsorbing liquid to the housing tank, wherein

a passage opening-closing mechanism configured to open or close the fluid treatment passage to discharge or store the adsorbing liquid supplied to the housing tank is provided at a bottom portion of the housing tank or under the housing tank.

2. The carbon dioxide recovery device according to claim 1, wherein:

the passage opening-closing mechanism includes a movable plate-shaped member and a fixed plate-shaped member;

a large number of through holes are dispersively formed on each of the movable plate-shaped member and the fixed plate-shaped member; and

when the movable plate-shaped member has moved to a predetermined open position or closed position, an open state where a large number of first through holes that are the large number of through holes of the movable plate-shaped member respectively overlap a large number of second through holes that are the large number of through holes of the fixed plate shaped member is realized, or a closed state where the large number of first through holes of the movable plate-shaped member do not overlap the large number of second through holes of the fixed plate-shaped member is realized.

3. The carbon dioxide recovery device according to claim 1, further comprising a circulation line, which includes the fluid treatment passage as a part thereof and through which an inactive gas circulates, wherein

the inactive gas dries the carbon dioxide adsorbing material in the housing tank.

4. The carbon dioxide recovery device according to claim 3, wherein a condenser configured to condense moisture contained in the inactive gas and a heater configured to heat the inactive gas are disposed in the circulation line of the inactive gas.

5. The carbon dioxide recovery device according to claim 1, wherein:

the housing tank is one of a plurality of housing tanks provided along an upper-lower direction in the casing; and

the passage opening-closing mechanism is one of a plurality of passage opening-closing mechanisms provided at the bottom portions of the plurality of housing tanks.

6. The carbon dioxide recovery device according to claim 5, wherein:

the plurality of housing tanks are one or two or more upper housing tanks provided at an upper side in the casing and one or two or more lower housing tanks provided at a lower side in the casing; and

the adsorbing liquid supplying portion is configured to supply the adsorbing liquid to an uppermost housing tank among said one or two or more upper housing tanks and an uppermost housing tank among said one or two or more lower housing tanks.

7. The carbon dioxide recovery device according to claim 1, wherein the adsorbing liquid supplying portion sprays the adsorbing liquid in the form of liquid droplets to the carbon dioxide adsorbing material or porous substance in the housing tank.

8. A carbon dioxide recovery system comprising a plurality of carbon dioxide recovery devices, each of which is the carbon dioxide recovery device according to claim 1, wherein

one of the carbon dioxide recovery devices performs an adsorption treatment of adsorbing the carbon dioxide contained in the treatment target gas, and the other carbon dioxide recovery device(s) performs a regeneration treatment of separating the carbon dioxide adsorbed by the carbon dioxide adsorbing material, a repair treatment of causing the carbon dioxide adsorbing material to support the adsorbing liquid, and a manufacture treatment of causing the porous substance to support the adsorbing liquid.