AMINO ACID SALT ARTICLES AND METHODS OF MAKING AND USING THEM

• US 20110120305A1
• Filed: 11/24/2009
• Published: 05/26/2011
• Est. Priority Date: 11/24/2009
• Status: Active Grant

• Current Assignee: Corning Incorporated
• Original Assignee: Corning Incorporated
• Inventors: Jiang, Dayue David
• Granted Patent: US 8,500,880 B2
• Time in Patent Office: Days
• US Class Current: 95/91
• CPC Class Codes: B01D 2252/20494 Amino acids, their salts or derivatives
• CPC Class Codes: B01D 2253/20 Organic adsorbents
• CPC Class Codes: B01D 2253/3425 Honeycomb shape
• CPC Class Codes: B01D 2257/304 Hydrogen sulfide
• 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 53/62 Carbon oxides
• CPC Class Codes: B01J 20/04 comprising compounds of alkali metals, alkaline earth metals or magnesium
• CPC Class Codes: B01J 20/223 containing metals, e.g. organo-metallic compounds, coordination complexes
• CPC Class Codes: B01J 20/28045 Honeycomb or cellular structures; Solid foams or sponges
• CPC Class Codes: B01J 20/3204 Inorganic carriers, supports or substrates
• CPC Class Codes: B01J 20/3251 comprising at least two different types of heteroatoms selected from nitrogen, oxygen or sulphur
• CPC Class Codes: B01J 20/3425 of sorbents or filter aids comprising organic materials
• CPC Class Codes: B01J 20/3483 by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
• CPC Class Codes: Y02C 20/40 of CO2

Abstract

An article comprising a substrate; and an amino acid salt disposed on the substrate. The article may be useful, for example, in the removal of an acid gas component from a gas.

Claims

1. An article comprising:

an inorganic substrate; and

a particulate solid amino acid salt disposed on the inorganic substrate.

2. The article of claim 1, wherein the substrate is in the form of a honeycomb.

3. The article of claim 1, wherein the substrate comprises glass wool.

4. The article of claim 1, wherein the amino acid salt is an amino acid potassium salt.

5. The article of claim 1, wherein the amino acid salt is an amino acid sodium salt.

6. The article of claim 1, wherein the amino acid salt is derived from glycine, arginie, lysine or histidine.

7. The article of claim 1, wherein the amino acid salt is derived from 6-aminohexanoic acid, proline, sarcosine, methionine, taurine, poly(amino-acid) such as polyarginine, polylysine, polyonithine, or poly histidine.

8. A method of making an article of claim 1, comprising:

providing an inorganic substrate;

applying an amino acid salt solution to the substrate to form a coated substrate; and

drying the coated substrate.

9. A method comprising contacting a gas comprising an acid gas with the article of claim 1 to remove at least a portion of the acid gas from the gas.

12. The method of claim 9, further comprising regenerating the article by removing at least a portion of the acid gas from the article.

13. The method of claim 12, wherein regenerating the article comprises heating the article to a temperature sufficient to remove the acid gas.

14. The method of claim 12, wherein regenerating the article comprises heating the article to a temperature from 60°

C. to 150°

C.

15. The method of claim 9, wherein the acid gas is carbon dioxide.

16. The method of claim 9, wherein the acid gas is hydrogen sulfide.

10. A method comprising:

providing an article comprising a substrate and a solid consisting of an amino acid salt disposed on the substrate; and

contacting a gas comprising an acid gas with the article to remove at least a portion of the acid gas from the gas.

17. The method of claim 10, further comprising regenerating the article by removing at least a portion of the acid gas from the article.

18. The method of claim 17, wherein regenerating the article comprises heating the article to a temperature sufficient to remove the acid gas.

19. The method of claim 10, wherein the acid gas is carbon dioxide.

20. The method of claim 10, wherein the acid gas is hydrogen sulfide.

11. A method comprising contacting a gas comprising an acid gas with a solid particulate amino acid salt to remove at least a portion of the acid gas from the gas.

21. The method of claim 11, further comprising regenerating the particulate amino acid salt.

22. The method of claim 21, wherein regenerating the amino acid salt comprises heating the amino acid salt to a temperature sufficient to remove the acid gas.

23. The method of claim 11, wherein the acid gas is carbon dioxide.

24. The method of claim 11, wherein the acid gas is hydrogen sulfide.