Carbon-based compositions with highly efficient volumetric gas sorption
AssigneeGroup 14 Technologies, Inc.
InventorsHenry R. Costantino, Alan Tzu-Yang Chang, Chad Goodwin, Cory Mekelburg, Liam Cover, Benjamin E. Kron, Katharine Geramita, Aaron M. Feaver, Leah A. Thompkins
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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.
Claims32
A carbon material having:
- i) a specific gravimetric methane adsorption of 0.13 g/g or greater at room temperature and 50 bar pressure;
- ii) a tap density of 0.6 g/cm3 or greater;
- iii) a mass average surface area of 1500 m2/g or greater;
- and
- iv) a mass average total pore volume of 0.7 cm3/g or greater.
A carbon material having a specific gravimetric methane adsorption of 0.13 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 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.
A carbon material having a specific gravimetric methane adsorption of 0.13 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 m2/g or lower and from 20-80% of particles have a surface area of 2000 m2/g or higher.
Dependencies are inferred from the claim text.