Carbon-based compositions with highly efficient volumetric gas sorption

Patent metadata

Field	Value
Publication number	US-12064747-B2
Application number	US-202318328634-A
Country	US
Kind code	B2
Filing date	Jun 2, 2023
Priority date	Nov 5, 2013
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

First claim

The invention claimed is:

1. A carbon material having:
a tap density of 0.5 g/cm 3 or greater;
a surface area of 1000 m 2 /g or greater;
a total pore volume of 0.5 cm 3 /g or greater; and
a gravimetric methane adsorption of 0.10 g/g or greater at room temperature and 50 bar pressure.

2. The carbon material of claim 1 , wherein the surface area is 1200 m 2 /g or greater.

3. The carbon material of claim 1 , wherein the surface area is 1500 m 2 /g or greater.

4. The carbon material of claim 1 , wherein the total pore volume is 0.7 cm 3 /g or greater.

5. The carbon material of claim 1 , wherein the gravimetric methane adsorption is 0.11 g/g or greater at room temperature and 50 bar pressure.

6. The carbon material of claim 1 , wherein the gravimetric methane adsorption is 0.12 g/g or greater at room temperature and 50 bar pressure.

7. The carbon material of claim 1 , wherein the gravimetric methane adsorption is 0.15 g/g or greater at room temperature and 50 bar pressure.

8. The carbon material of claim 1 , wherein the gravimetric methane adsorption is 0.17 g/g or greater at room temperature and 50 bar pressure.

9. The carbon material of claim 1 , wherein the carbon material comprises a mixture of two or more populations of particles, wherein from 5%-30% of the particles have a surface area below 1500 m 2 /g, from 10%-80% of the particles have a surface area of from 1500 m 2 /g to 1800 m 2 /g and from 5-30% of the particles have a surface area greater than 1800 m 2 /g.

10. The carbon material of claim 1 , wherein the carbon material comprises a mixture of two or more populations of particles, wherein from 20-80% of the particles have a surface area of 1600 m 2 /g or lower and from 20-80% of particles have a surface area of 2000 m 2 /g or higher.

11. The carbon material of claim 1 , wherein the carbon material comprises a pore volume and from 1-40% of the pore volume resides in mesopores, and from 1-50% of the pore volume resides in macropores.

12. The carbon material of claim 1 , wherein the volume average particle size Dv,50 of the carbon material is between 0.1 um and 50 mm.

13. A gas storage device comprising the carbon material of claim 1 .

14. The device of claim 13 , wherein the gas storage capacity retention of the device at 1000 cycles is 80% or greater.

15. The carbon material of claim 1 , further comprising nitrogen, silicon, sulfur or combinations thereof.

16. The carbon material of claim 15 , comprising the silicon.

17. A carbon material having a gravimetric methane adsorption of 0.10 g/g or greater at room temperature and 50 bar pressure, wherein the carbon material comprises a mixture of two or more populations of particles, wherein from 5%-30% of the particles have a surface area below 1500 m 2 /g, from 10%-80% of the particles have a surface area of from 1500 m 2 /g to 1800 m 2 /g and from 5-30% of the particles have a surface area greater than 1800 m 2 /g.

18. The carbon material of claim 17 , wherein the gravimetric methane adsorption is 0.11 g/g or greater at room temperature and 50 bar pressure.

19. The carbon material of claim 17 , wherein the gravimetric methane adsorption is 0.12 g/g or greater at room temperature and 50 bar pressure.

20. The carbon material of claim 17 , wherein the tap density is 0.6 g/cm 3 or greater, the surface area is 1200 m 2 /g or greater and the total pore volume is 0.7 cm 3 /g or greater.

21. The carbon material of claim 17 , wherein the carbon material comprises a pore volume and from 1-40% of the pore volume resides in mesopores, and from 1-50% of the pore volume resides in macropores.

22. The carbon material of claim 17 , wherein the volume average particle size Dv,50 of the carbon material is between 0.1 μm and 50 mm.

23. The carbon material of claim 17 , further comprising nitrogen, silicon, sulfur or combinations thereof.

24. The carbon material of claim 23 , comprising the silicon.

25. A gas storage device comprising the carbon material of claim 17 .

26. The device of claim 25 , wherein a gas storage capacity retention of the device at 1000 cycles is 80% or greater.

27. A carbon material having a gravimetric methane adsorption of 0.10 g/g or greater at room temperature and 50 bar pressure, wherein the carbon material comprises a mixture of two or more populations of particles, wherein from 20-80% of the particles have a surface area of 1600 m 2 /g or lower and from 20-80% of particles have a surface area of 2000 m 2 /g or higher.

28. The carbon material of claim 27 , wherein the gravimetric methane adsorption is 0.11 g/g or greater at room temperature and 50 bar pressure.

29. The carbon material of claim 27 , wherein the specific gravimetric methane adsorption is 0.12 g/g or greater at room temperature and 50 bar pressure.

30. The carbon material of claim 27 , wherein the tap density is 0.6 g/cm 3 or greater, the surface area is 1200 m 2 /g or greater and the total pore volume is 0.7 cm 3 /g or greater.

31. The carbon material of claim 27 , wherein the carbon material comprises a pore volume and from 1-40% of the pore volume resides in mesopores, and from 1-50% of the pore volume resides in macropores.

32. The carbon material of claim 27 , wherein the volume average particle size Dv,50 of the carbon material is between 0.1 μm and 50 mm.

33. The carbon material of claim 27 , further comprising nitrogen, silicon, sulfur or combinations thereof.

34. The carbon material of claim 33 , comprising the silicon.

35. A gas storage device comprising the carbon material of claim 27 .

36. The device of claim 35 , wherein the gas storage capacity retention of the device at 1000 cycles is 80% or greater.

Assignees

• Group14 Technologies Inc

Inventors

• Costantino Henry R
• Chang Alan Tzu-Yang
• Goodwin Chad
• Mekelburg Cory
• Cover Liam
• Kron Benjamin E
• Geramita Katharine
• Feaver Aaron M
• Thompkins Leah A

Classifications

• C01P2006/14

  Pore volume · CPC title

• C01P2006/12

  Surface area · CPC title

• Y02E60/32

  Hydrogen storage · CPC title

• C01B3/0021

  Elemental carbon, e.g. active carbon, carbon nanotubes or fullerenes · CPC title

• C10L3/10

  Working-up natural gas or synthetic natural gas · CPC title