METAL OXIDE FOAM, AMINE FUNCTIONAL SOLID SORBENT, METHODS AND APPLICATIONS

• US 20130338001A1
• Filed: 01/18/2012
• Published: 12/19/2013
• Est. Priority Date: 01/18/2011
• Status: Active Grant

• Current Assignee: Cornell University
• Original Assignee: Cornell University
• Inventors: Giannelis, Emmanuel P., Fu, Liling, Qi, Genggeng
• Granted Patent: US 10,773,236 B2
• Time in Patent Office: Days
• US Class Current: 502/402
• CPC Class Codes: B01J 20/06 comprising oxides or hydroxides of metals not provided for in group B01J20/04
• CPC Class Codes: B01J 20/103 comprising silica
• CPC Class Codes: B01J 20/22 comprising organic material
• 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 20/28004 Sorbent size or size distribution, e.g. particle size
• CPC Class Codes: B01J 20/28045 Honeycomb or cellular structures; Solid foams or sponges
• CPC Class Codes: B01J 20/28083 being in the range 2-50 nm, i.e. mesopores
• CPC Class Codes: B01J 20/305 Addition of material, later completely removed, e.g. as result of heat treatment, leaching or washing, e.g. for forming pores
• CPC Class Codes: B01J 20/3085 Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
• CPC Class Codes: B01J 20/3204 Inorganic carriers, supports or substrates
• CPC Class Codes: B01J 20/3246 having a well defined chemical structure
• CPC Class Codes: B01J 20/3248 the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
• CPC Class Codes: B01J 20/3257 the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such
• CPC Class Codes: B01J 20/3259 comprising at least two different types of heteroatoms selected from nitrogen, oxygen or sulfur with at least one silicon atom
• CPC Class Codes: B01J 20/3272 Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
• CPC Class Codes: C01B 37/02 Crystalline silica-polymorphs, e.g. silicalites dealuminated aluminosilicate zeolites
• CPC Class Codes: C01G 23/047 Titanium dioxide
• CPC Class Codes: C01G 25/02 Oxides
• CPC Class Codes: C01G 27/02 Oxides
• CPC Class Codes: Y02C 20/40 of CO2

Abstract

Amine functional solid sorbents for carbon dioxide capture and sequestration may be prepared from metal oxide foam solid sorbent supports by treating an appropriate metal oxide foam solid sorbent support with an amine material. Desirable are metal oxide foam solid sorbent supports with a foam structure and morphology at least substantially absent hollow sphere, layered sphere, wormlike and amorphous structure and morphology components. The amine materials may be sorbed into the metal oxide foam solid sorbent support, or alternatively chemically bonded, such as but not limited to covalently bonded, to the metal oxide foam solid sorbent support.

Claims

1. A sorbent support comprising a metal oxide material having a foam like structure and morphology substantially absent hollow sphere, layered sphere, wormlike and amorphous structure and morphology components.

2. The sorbent support of claim 1 wherein the metal oxide material comprises a silica material.

3. The sorbent support of claim 1 wherein the metal oxide material is selected from the group consisting of silica, titania, hafnia and zirconia materials, mixtures thereof, composites thereof and alloys thereof.

4. The sorbent support of claim 1 wherein the sorbent support has a unit cell size from about 20 to about 200 nanometers and a window opening with a pore size from about 10 to about 40 nm.

5. A method for synthesizing a sorbent support comprising reacting in aqueous solution a soluble silica source material, a catalyst material and a surfactant material while optimizing a concentration of the surfactant material and the catalyst material with respect to the soluble silica source material to provide a silica material having a foam like structure and morphology substantially absent hollow sphere, layered sphere, wormlike and amorphous structure and morphology components.

6. The method of claim 5 wherein:

the silica source material comprises sodium silicate;

the surfactant material comprises an ethylene oxide/propylene oxide copolymer; and

the catalyst material comprises ammonium fluoride.

7. The method of claim 6 wherein the aqueous solution comprises a weight range ratio of sodium silicate:

ethylene oxide/propylene oxide surfactant;

ammonium fluoride catalyst is from about 24;

25;

1 to about 8;

11;

1.

8. A sorbent material comprising:

a metal oxide material having a foam like structure and morphology substantially absent hollow sphere, layered sphere, wormlike and amorphous structure and morphology components; and

an amine material incorporated into the metal oxide material.

9. The sorbent material of claim 8 wherein the metal oxide material comprises a silica material.

10. The sorbent material of claim 8 wherein the metal oxide material is selected from the group consisting of silica, titania, hafnia and zirconia materials, mixtures thereof, composites thereof and alloys thereof.

11. The sorbent material of claim 8 wherein the metal oxide material has a unit cell size from about 20 to about 200 nanometers and a window opening with a pore size from about 10 to about 40 nm.

12. The sorbent material of claim 8 wherein the amine material is sorbed into the metal oxide foam.

13. The sorbent material of claim 12 wherein the amine material comprises polyethyleneimine.

14. The sorbent material of claim 12 wherein the amine material comprises tetraethylenepentamine.

15. The sorbent material of claim 8 wherein the amine material is chemically bonded to the metal oxide foam.

16. The sorbent material of claim 15 wherein the amine material is polyethyleneimine.

17. A method for preparing a sorbent material comprising treating a sorbent support comprising a metal oxide material having a foam like structure and morphology substantially absent hollow sphere, layered sphere, wormlike and amorphous structure and morphology components with an amine material to form an amine functional solid sorbent.

18. The method of claim 17 wherein the metal oxide material has a unit cell size from about 20 to about 200 nanometers and a window opening with a pore size from about 10 to about 40 nm.

19. The method of claim 17 wherein the treating comprises an impregnation.

20. The method of claim 19 wherein the impregnation uses a polyethyleneimine material.

21. The method of claim 19 wherein the impregnation uses a tetraethylenepentamine material.

22. The method of claim 17 wherein the treating comprises a chemical reacting to provide a chemically bonded amine material.

23. The method of claim 22 wherein the chemical reacting includes a ring opening polymerization of an oxazoline monomer to provide a chemically bonded polyethyleneimine material.

24. The method of claim 23 wherein the chemical reacting further comprises chemically modifying the sorbent support prior to chemically reacting with the oxazoline monomer.

25. The method of claim 24 wherein the chemical modifying includes an additional chemical reaction with a silane coupling agent.

26. The method of claim 25 wherein the silane coupling agent comprises a halo trialkoxysilane.

27. The method of claim 26 wherein the halo trialkoxysilane comprises iodo trialkoxysilane.

28. A method for preparing a sorbent material comprising:

modifying a sorbent support with a ring opening polymerization initiator to form a ring opening polymerization initiator modified sorbent support; and

reacting the ring opening polymerization initiator modified sorbent support with an oxazoline monomer to provide an amine functional solid sorbent.

29. The method of claim 28 wherein the modifying the sorbent support to form the ring opening polymerization initiator modified sorbent support uses an iodo trialkoxysilane.