Sorbent article for CO2 capture

Patent metadata

Field	Value
Publication number	US-9205365-B2
Application number	US-201414146950-A
Country	US
Kind code	B2
Filing date	Jan 3, 2014
Priority date	Feb 28, 2011
Publication date	Dec 8, 2015
Grant date	Dec 8, 2015

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 CO 2 adsorption sites within the interior of the porous channel walls. The article may be useful, for example, for removing CO 2 from a gas.

First claim

What is claimed is:

1. A sorbent article for removing CO 2 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 CO 2 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 CO 2 at one temperature and releasing the CO 2 at a higher temperature.

9. A method of removing CO 2 from a fluid, the method comprising: contacting an article of claim 1 with a fluid stream comprising CO 2 .

10. The method of claim 9 , further comprising releasing at least a portion of sorbed CO 2 from the article.

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

Assignees

• Corning Inc

Inventors

• Jiang Dayue
• Song Zhen
• Wang Jianguo

Classifications

• B01J20/28097

  being coated, filled or plugged with specific compounds · CPC title

• B01D2253/106

  Silica or silicates · CPC title

• B01D2257/504

  Carbon dioxide · CPC title

• B01D2253/25

  Coated, impregnated or composite adsorbents · CPC title

• B01J20/3204

  Inorganic carriers, supports or substrates · CPC title