Sorbent articles for CO 2 capture

• US 8,647,412 B2
• Filed: 05/19/2011
• Issued: 02/11/2014
• Est. Priority Date: 02/28/2011
• Status: Active Grant

• Current Assignee: Corning Incorporated
• Original Assignee: Corning Incorporated
• Inventors: Jiang, Dayue David, Song, Zhen, Wang, Jianguo
• Primary Examiner(s): Hopkins, Robert A
• Assistant Examiner(s): HOLECEK, CABRENA L
• Application Number:
  US13/111,360
• Publication Number:
  US 20120216675A1
• Time in Patent Office: 999 Days
• Field of Search: 951/39, 959/00, 961/08, 961/29, 961/34, 96153-154, 502/400
• US Class Current: 95/139
• 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 which intersect to define a plurality of open channels extending from an inlet end of the substrate to an outlet end of the substrate; and

an organic-inorganic hybrid sorbent material distributed on a surface of the open channels;

wherein the sorbent material is derived from an amino-functionalized alkoxysilane and a silylated 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 an interior of the porous channel walls; and

wherein the organic-inorganic hybrid sorbent material has a microstructural homogeneity.

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

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

4. The article of claim 1, wherein the porous channel walls have a surface porosity of greater than 60%.

5. 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.

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

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

7. The method of claim 6, further comprising releasing at least a portion of sorbed CO₂ from the article.

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