Activated carbon fibers for filtration and methods of manufacture
AssigneeCarbon Holdings Intellectual Properties, LLC
InventorsCharles Agee Atkins, Charles Hill
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Abstract
Activated carbon fibers and methods of stabilizing, carbonizing, and activating carbon fibers are disclosed. The activated carbon fibers can be used in filtration, chemical capture, energy storage, and other applications. A method of producing an activated carbon fiber material for filtration or gas adsorption can include melt blowing pitch to form pitch fibers, stabilizing the pitch fibers to form stabilized pitch fibers, carbonizing the stabilized pitch fibers to form carbon fibers, and activating the carbon fibers to form activated carbon fibers with a specific surface area of at least 1900 m2/g.
Claims20
A method of producing an activated carbon fiber material for filtration or gas adsorption, the method comprising:
- melt blowing pitch to form pitch fibers;
- stabilizing the pitch fibers to form stabilized pitch fibers;
- carbonizing the stabilized pitch fibers to form carbon fibers;
- and
- activating the carbon fibers to form activated carbon fibers with a specific surface area of at least 1900 m2/g.
A filtration or gas adsorption material comprising:
- activated carbon fibers having diameters of 20 μm or less and a specific area of at least 1900 m2/g.
A method of producing an activated carbon fiber material, the method comprising:
- forming pitch fibers;
- and
- simultaneously carbonizing and activating the pitch fibers into activated carbon fibers in an environment comprising carbon dioxide (CO2) and water (H2O).
Dependencies are inferred from the claim text.