CARBON-BASED COMPOSITIONS WITH HIGHLY EFFICIENT VOLUMETRIC GAS SORPTION

• US 20150283534A1
• Filed: 11/05/2014
• Published: 10/08/2015
• Est. Priority Date: 11/05/2013
• Status: Active Grant

• Current Assignee: Group14 Technologies Inc.
• Original Assignee: EnerG2 Technologies, Incorporated (BASF SE)
• Inventors: Costantino, Henry R., Chang, Alan Tzu-Yang, Goodwin, Chad, Cover, Liam, Kron, Benjamin E., Geramita, Katharine, Feaver, Aaron M., Mekelburg, Cory
• Granted Patent: US 10,195,583 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B01J 20/20 comprising free carbon; comprising carbon obtained by carbonising processes
• CPC Class Codes: B01J 20/28004 Sorbent size or size distribution, e.g. particle size
• CPC Class Codes: B01J 20/28011 Other properties, e.g. density, crush strength
• CPC Class Codes: B01J 20/28016 Particle form
• CPC Class Codes: B01J 20/28066 being more than 1000 m2/g
• CPC Class Codes: B01J 20/28073 being in the range 0.5-1.0 ml/g
• CPC Class Codes: C01B 3/0021 Carbon, e.g. active carbon, carbon nanotubes, fullerenes; Treatment thereof
• CPC Class Codes: C01B 3/0084 Solid storage mediums characterised by their shape, e.g. pellets, sintered shaped bodies, sheets, porous compacts, spongy metals, hollow particles, solids with cavities, layered solids
• CPC Class Codes: C01B 32/30 Active carbon
• CPC Class Codes: C01P 2006/12 Surface area
• CPC Class Codes: C01P 2006/14 Pore volume
• CPC Class Codes: C10L 3/06 Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04 liquefying by pressure and cold treatment F25J
• CPC Class Codes: C10L 3/10 Working-up natural gas or synthetic natural gas
• CPC Class Codes: Y02E 60/32 Hydrogen storage
• CPC Class Codes: Y02P 20/133 Renewable energy sources, e.g. sunlight

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.

Claims

1. A composition comprising a plurality of gas storage particles, wherein the packing efficiency of the plurality of gas storage particles is 80% or greater.

2-17. -17. (canceled)

18. A carbon material having a specific gravimetric methane adsorption of 0.13 g/g or greater at room temperature and 50 bar pressure.

19. The carbon material of claim 18, wherein the specific gravimetric methane adsorption is 0.15 g/g or greater.

20. The carbon material of claim 18, wherein the specific gravimetric methane adsorption is 0.17 g/g or greater.

21. The carbon material of claim 18, wherein the tap density is 0.6 g/cm³ or greater, the mass average surface area is 1500 m²/g or greater and the mass average total pore volume is 0.7 cm³/g.

22. The carbon material of claim 18, 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 m²/g, from 10%-80% of the particles have a surface area of from 1500 m²/g to 1800 m²/g and from 5-30% of the particles have a surface area greater than 1800 m²/g.

23. The carbon material of claim 18, 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 m²/g or lower and from 20-80% of particles have a surface area of 2000 m²/g or higher.

24. The carbon material of claim 18, 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.

25. The carbon material of claim 18, wherein the volume average particle size Dv,50 of the carbon material is between 0.1 um and 50 mm.

33. A gas storage device comprising the carbon material of claim 18.

35. The device of claim 33, wherein the gas storage capacity retention of the device at 1000 cycles is 80% or greater.

50. A method for storage of gas, the method comprising charging a gas to the gas storage device of claim 33, and storing the gas at a pressure above atmospheric pressure.

51. The method of claim 50, wherein the gas comprises methane, ethane, hydrogen or natural gas or a combination thereof.

52. The method of claim 50, further comprising discharging the gas from the gas storage device.

53. A composition comprising the carbon material of claim 18 and a gas.

54. The composition of claim 53, wherein the gas comprises methane, ethane, hydrogen or natural gas or a combination thereof.

26-32. -32. (canceled)

34. (canceled)

36-49. -49. (canceled)