Carbon dioxide adsorption apparatus and adsorption element and method for manufacture thereof

• US 7,527,677 B2
• Filed: 02/25/2005
• Issued: 05/05/2009
• Est. Priority Date: 02/27/2004
• Status: Active Grant

• Current Assignee: Kawasaki Jukogyo Kabushiki Kaisha (Kawasaki Heavy Industries Limited)
• Original Assignee: Kawasaki Jukogyo Kabushiki Kaisha (Kawasaki Heavy Industries Limited), Shimadzu Corporation
• Inventors: Shoji, Takatoshi, Saito, Hidefumi, Takemura, Yoshihiko
• Primary Examiner(s): LAWRENCE JR, FRANK M
• Application Number:
  US10/590,820
• Publication Number:
  US 20070169624A1
• Time in Patent Office: 1,530 Days
• Field of Search: 951/39, 961/08, 961/53, 961/54, 128/205.28, 502/400, 423/230, 252/181.1, 252/184, 252189-192
• US Class Current: 96/153
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 53/02 by adsorption, e.g. preparative gas chromatography solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01
• CPC Class Codes: B01D 53/1425 Regeneration of liquid absorbents
• CPC Class Codes: B01D 53/1475 Removing carbon dioxide
• CPC Class Codes: B01D 53/18 Absorbing units; Liquid distributors therefor B01D3/16, B01D3/26, B01D3/30 take precedence; packing elements B01J19/30, B01J19/32
• CPC Class Codes: B64D 13/00 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space , or structural parts of the aircraft treatment rooms with artificial climate for medical purposes A61G10/02; respiratory apparatus in general A62B; for vehicles in general B60H
• CPC Class Codes: B64D 2013/0637 with CO2 removers
• CPC Class Codes: Y02A 50/20 Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
• CPC Class Codes: Y02C 20/40 of CO2
• CPC Class Codes: Y02T 50/40 Weight reduction
• CPC Class Codes: Y02T 50/50 On board measures aiming to increase energy efficiency

Abstract

A carbon dioxide adsorption element rapidly adsorbs a large amount of carbon dioxide, and regenerates amine groups for carbon dioxide adsorption rapidly and uniformly with high-temperature air. The carbon dioxide adsorption element 110 for adsorbing carbon dioxide in air comprises a foil-like or plate-like support member 111, a porous aluminum oxide film 112 covering the support member 111, and the amine groups 113 clinging to the inner surface of each pore 112a of the film 112 for carbon dioxide adsorption. The film 112 is formed by oxidation of aluminum or aluminum alloy. The depth direction of each pore 112a of the film is the thickness direction of the support member 111.

Claims

1. A carbon dioxide adsorption element for adsorbing carbon dioxide contained in air, comprising:

a foil-like or plate-like support member,

a porous aluminum oxide film covering said support member,

amine groups clinging to the inner surface of each pore of said film for carbon dioxide adsorption,

said film being formed by oxidation of aluminum or aluminum alloy,

wherein

the depth direction of each pore of said film is the thickness direction of said support member.

2. The carbon dioxide adsorption element according to claim 1, wherein the pores include a large-diameter pore disposed at the surface and a plurality of small-diameter pores opened in the bottom section of said large-diameter pore as each pore formed in said film.

3. The carbon dioxide adsorption element according to claim 1 or 2, wherein the inner diameter of the pore surrounded by said amine groups clinging to the inner surface of each pore of said film is 2 nm to 100 nm.

4. The carbon dioxide adsorption element according to claim 2, wherein the inner diameter of the pore surrounded by said amine groups clinging to the inner surface of said small-diameter pore is 2 nm to 100 nm, and the inner diameter of the pore surrounded by said amine groups clinging to the inner surface of said large-diameter pore is more than 100 nm.

5. The carbon dioxide adsorption element according to claim 1, wherein said support member is made from aluminum or aluminum alloy, and said film is formed by oxidation of the surface layer of said support member.

6. The carbon dioxide adsorption element according to claim 1, wherein said support member includes an electric resistance element having electrical conductivity and connected to a power supply unit for resistance heating, and

carbon dioxide adsorbed by said amine groups is released by resistance heating of said electric resistance element.

7. A carbon dioxide adsorption apparatus comprising:

the carbon dioxide adsorption element according to claim 1,

a coil for generating alternating magnetic flux, and

said support member including an electrically conductive element that has electrical conductivity and is disposed in the position through which the magnetic flux generated by the coil passes, wherein

carbon dioxide adsorbed by said amine groups is released by induction heating of said electrically conductive element.

8. A method for manufacturing a carbon dioxide adsorption element, comprising the steps of:

forming a foil-like support member made from aluminum or aluminum alloy,

forming a porous film by conducting anodization of the surface layer of said support member, and

causing amine groups for carbon dioxide adsorption to cling to the inner surface of each pore of said film.

9. A method for manufacturing a carbon dioxide adsorption element, comprising the steps of:

forming a plate-like support member in which at least the surface layer is made from aluminum or aluminum alloy,

forming a porous film by conducting anodization of the surface layer of said support member, and

causing amine groups for carbon dioxide adsorption to cling to the inner surface of each pore of said film.

10. A carbon dioxide adsorption element for adsorbing carbon dioxide contained in air, comprising:

a support member,

a porous film covering said support member,

amine groups clinging to the inner surface of each pore of said film for carbon dioxide adsorption, and

said support member including an element that is heated by electric energy, wherein

carbon dioxide adsorbed by said amine groups is released by heating said element.

11. The carbon dioxide adsorption element according to claim 10, wherein said support member has a foil-like or plate-like form, and the depth direction of each pore of said film is the thickness direction of said support member.

12. The carbon dioxide adsorption element according to claim 10, wherein said heated element is an electric resistance element having electrical conductivity and connected to a power supply unit for resistance heating, and

carbon dioxide adsorbed by said amine groups is released by resistance heating of said electric resistance element.

13. A carbon dioxide adsorption apparatus comprising:

the carbon dioxide adsorption element according to claim 10,

a coil for generating an alternating magnetic flux, wherein

said heated element is an electrically conductive element that has electrical conductivity and is disposed in the position through which the magnetic flux generated by the coil passes, and

carbon dioxide adsorbed by said amine groups is released by induction heating of said electrically conductive element.