Sorbent article for CO;capture

• US 9,205,365 B2
• Filed: 01/03/2014
• Issued: 12/08/2015
• Est. Priority Date: 02/28/2011
• Status: Expired due to Fees

• Current Assignee: Corning Incorporated
• Original Assignee: Corning Incorporated
• Inventors: Jiang, Dayue, Song, Zhen, Wang, Jianguo
• Primary Examiner(s): Smith, Duane
• Assistant Examiner(s): HOLECEK, CABRENA L
• Application Number:
  US14/146,950
• Publication Number:
  US 20140116250A1
• Time in Patent Office: 704 Days
• US Class Current: 1/1
• CPC Class Codes: B01D 2253/106 Silica or silicates
• CPC Class Codes: B01D 2253/202 Polymeric adsorbents
• CPC Class Codes: B01D 2253/25 Coated, impregnated or composite adsorbents
• CPC Class Codes: B01D 2253/3425 Honeycomb shape
• 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 53/04 with stationary adsorbents B01D53/025 takes precedence
• CPC Class Codes: B01J 20/103 comprising silica
• 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 20/28045 Honeycomb or cellular structures; Solid foams or sponges
• CPC Class Codes: B01J 20/28057 Surface area, e.g. B.E.T specific surface area
• CPC Class Codes: B01J 20/28097 being coated, filled or plugged with specific compounds
• CPC Class Codes: B01J 20/3204 Inorganic carriers, supports or substrates
• CPC Class Codes: B01J 20/327 Polymers obtained by reactions involving only carbon to carbon unsaturated bonds
• CPC Class Codes: B01J 20/3272 Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
• CPC Class Codes: Y02C 20/40 of CO2

Abstract

A sorbent article having a substrate having porous channel walls defining open channels, and an organic-inorganic hybrid sorbent material distributed on a surface of the porous channel walls, wherein the sorbent material is derived from an amino-functionalized alkoxysilane and a polyamine, wherein the sorbent material is present in an amount equal to or greater than 10 g/l, wherein at least some of the sorbent material resides in the porous channel walls and forms CO₂ adsorption sites within the interior of the porous channel walls. The article may be useful, for example, for removing CO₂ from a gas.

Claims

1. A sorbent article for removing CO₂ from a gas, the article comprising:

a substrate comprising porous channel walls defining open channels; and

an organic-inorganic hybrid sorbent material distributed on a surface of the porous channel walls;

wherein the sorbent material is derived from an epoxide-functionalized alkoxysilane and a polyamine;

wherein the sorbent material is present in an amount equal to or greater than 10 g/l;

wherein at least some of the sorbent material resides in the porous channel walls and forms CO₂ adsorption sites within the interior of the porous channel walls; and

wherein the organic-inorganic sorbent material has microstructural homogeneity.

2. The article of claim 1, wherein the polyamine is a silylated polyamine.

3. The article of claim 1, wherein the polyamine is a non-silylated polyamine.

4. The article of claim 3, wherein the sorbent material is derived from an epoxide-functionalized alkoxysilane and a non-silylated polyamine in the presence of an amino-functionalized alkoxysilane.

5. The article of claim 1, wherein the sorbent material comprises an SPEI-silica material.

6. The article of claim 1, wherein the substrate is honeycomb shaped.

7. The article of claim 1, wherein the porosity of the channel walls is greater than 60%.

8. The article of claim 1, wherein the sorbent material is capable of capturing CO₂ at one temperature and releasing the CO₂ at a higher temperature.

9. A method of removing CO₂ from a fluid, the method comprising:

contacting an article of claim 1 with a fluid stream comprising CO₂.

10. The method of claim 9, further comprising releasing at least a portion of sorbed CO₂ from the article.

11. The article of claim 1, wherein the sorbent material is dispersed in a liquid.