Adsorbent

• US 9,192,913 B2
• Filed: 09/04/2012
• Issued: 11/24/2015
• Est. Priority Date: 09/05/2011
• Status: Active Grant

• Current Assignee: Kuraray Company Limited
• Original Assignee: Kuraray Company Limited
• Inventors: Inubushi, Yasutaka, Hori, Takashi, Kurihara, Toyoaki, Ogi, Hiroyuki
• Primary Examiner(s): LAWRENCE JR, FRANK M
• Application Number:
  US14/342,641
• Publication Number:
  US 20140224120A1
• Time in Patent Office: 1,176 Days
• Field of Search: 95/90, 95/96, 951/48, 959/00, 951/16, 951/17, 95127-130, 951/36, 95138-141, 951/43, 961/08, 206/0.7, 502/402, 502/526
• US Class Current: 1/1
• CPC Class Codes: B01D 2253/112 Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
• CPC Class Codes: B01D 2253/202 Polymeric adsorbents
• CPC Class Codes: B01D 2253/204 Metal organic frameworks (MOF's)
• CPC Class Codes: B01D 2253/25 Coated, impregnated or composite adsorbents
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 2257/7025 Methane
• CPC Class Codes: B01D 2259/4525 for storage and dispensing systems
• 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 53/0462 Temperature swing adsorption
• CPC Class Codes: B01D 53/047 Pressure swing adsorption
• CPC Class Codes: B01J 20/223 containing metals, e.g. organo-metallic compounds, coordination complexes
• CPC Class Codes: B01J 20/26 Synthetic macromolecular compounds
• CPC Class Codes: B01J 20/261 obtained by reactions only involving carbon to carbon unsaturated bonds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F
• CPC Class Codes: B01J 20/262 obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G
• CPC Class Codes: B01J 20/264 derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
• CPC Class Codes: B01J 2220/44 Materials comprising a mixture of organic materials materials coated or impregnated on a carrier B01J20/32
• CPC Class Codes: C01B 13/0281 in getters
• CPC Class Codes: C01B 17/167 Separation
• CPC Class Codes: C01B 17/60 Isolation of sulfur dioxide from gases
• CPC Class Codes: C01B 21/0455 characterised by the adsorbent
• CPC Class Codes: C01B 21/20 : Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
• CPC Class Codes: C01B 23/0057 : characterised by the adsorbent
• CPC Class Codes: C01B 3/508 : by selective and reversible uptake by an appropriate medium, i.e. the uptake being based on physical or chemical sorption phenomena or on reversible chemical reactions the appropriate mediums per se C01B3/0005
• CPC Class Codes: C01C 1/006 : making use of solid ammonia storage materials, e.g. complex ammine salts
• CPC Class Codes: C07C 7/12 : by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
• CPC Class Codes: C07C 9/04 : Methane production by treatment of sewage C02F11/04; natural gas, synthetic natural gas C10L3/06
• CPC Class Codes: C07C 9/06 : Ethane
• CPC Class Codes: F17C 1/00 : Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge pressurised apparatus for purposes other than storage, see the relevant subclasses such as A62C, B05B; associated with vehicles, see the appropriate subclass of classes B60 - B64; pressure vessels in general F16J12/00 ; autoclaves B01J3/04; tank vehicles B60P3/22; railway tank wagons for carrying fluent materials B61D5/00; accumulators for supplying fluid under pressure F15B1/04; liquefied gas stoves F24C3/00
• CPC Class Codes: F17C 11/00 : Use of gas-solvents or gas-sorbents in vessels absorbing compositions for acetylene C10L3/04; absorbing compositions for hydrogen C01B3/0005
• CPC Class Codes: F17C 11/005 : for hydrogen
• CPC Class Codes: F17C 11/007 : for hydrocarbon gases, such as methane or natural gas, propane, butane or mixtures thereof [LPG]
• CPC Class Codes: Y02C 20/20 : of methane
• CPC Class Codes: Y02C 20/40 : of CO2
• CPC Class Codes: Y02P 20/151 : Reduction of greenhouse gas [GHG] emissions, e.g. CO2
• CPC Class Codes: Y02P 20/156 : Methane [CH4]

Abstract

An object of the present invention is to provide an adsorbent material having excellent gas storage performance and gas separation performance.

This object can be achieved by an adsorbent material comprising a composition comprising a metal complex (A) and an elastomer (B), the metal complex (A) containing an anionic ligand and at least one metal ion selected from ions of metals belonging to Groups 1 to 13 of the periodic table, the metal complex (A) being capable of undergoing a volume change upon adsorption, and the mass ratio of the metal complex (A) and the elastomer (B) being within the range of 1:99 to 99:1.

Claims

1. An adsorbent material, comprising a composition comprising:

a metal complex (A); and

an elastomer (B),

wherein;

the metal complex (A) comprises an anionic ligand and at least one metal ion of a Group 1 to 13 metal of the periodic table;

the metal complex (A) undergoes a volume change upon adsorption; and

a mass ratio of the metal complex (A) to the elastomer (B) is within a range of 1;

99 to 99;

1.

2. The adsorbent material according to claim 1, wherein the metal complex (A) futher comprises an organic ligand that undergoes multidentate binding to the metal ion.

3. The adsorbent material according to claim 1, wherein a volume change rate of the metal complex (A) upon adsorption is 0.5 to 50%.

4. The adsorbent material according to claim 1, wherein the elastomer (B) is a thermoplastic elastomer comprising at least one polymer block having a glass transition temperature of 273 K or less.

5. The adsorbent material according to claim 1, which absorbs carbon dioxide, hydrogen, carbon monoxide, oxygen, nitrogen, hydrocarbons having 1 to 4 carbon atoms, noble gases, hydrogen sulfide, ammonia, sulfur oxides, nitrogen oxides, siloxanes, water vapor, or organic vapor.

6. A storage material comprising the adsorbent material of claim 1.

7. The storage material according to claim 6, which is adapted to storing carbon dioxide, hydrogen, carbon monoxide, oxygen, nitrogen, hydrocarbons having 1 to 4 carbon atoms, noble gases, hydrogen sulfide, ammonia, water vapor, or organic vapor.

8. A gas storage device, comprising

a pressure-resistant container that can be hermetically sealed and comprising an inlet and outlet for gas, and a gas storage space therein;

and

the storage material of claim 6 located within the gas storage space.

9. A gaseous-fuel vehicle, comprising an internal combustion engine that is configured to obtain driving force from a fuel gas supplied from the gas storage device of claim 8.

10. A separation material,comprising the adsorbent material of claim 1.

11. The separation material according to claim 10, which separates carbon dioxide, hydrogen, carbon monoxide, oxygen, nitrogen, hydrocarbons having 1 to 4 carbon atoms, noble gases, hydrogen sulfide, ammonia, sulfur oxides, nitrogen oxides, siloxanes, water vapor, or organic vapor.

12. A separation method, comprising contacting the separation material of claim 10 with a gas mixture at a pressure ranging from 0.01 to 10 MPa.

13. The separation method according to claim 12, wherein separation of components in the gas mixture occurs by a pressure swing adsorption process or a temperature swing adsorption process.

14. The adsorbent material according to claim 2, wherein a volume change rate of the metal complex (A) upon adsorption is 0.5 to 50%.

15. The adsorbent material according to claim 2, wherein the elastomer (B) is a thermoplastic elastomer comprising at least one polymer block having a glass transition temperature of 273 K or less.