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US 2023/0091961 A1Published application
Supercritical CO2 Solvated Process to Convert Coal to Carbon Fibers
AssigneeCarbon Holdings Intellectual Properties, LLC
InventorsCharles Agee Atkins, Matthew Targett
Life of this patent
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Abstract
A method of forming high molecular weight (“HMW”) coal tar can include combining supercritical carbon dioxide (sCO2) and an amount of coal tar, and fractionating the amount of coal tar to form the HMW coal tar. The method can further include forming the amount of coal tar from coal. Forming the amount of coal tar from coal can include extracting the coal tar from an amount of coal using sCO2.
Claims14
A system for processing coal tar, comprising:
- a high molecular weight (“HMW”) coal tar formation apparatus comprising a coal tar input and configured to form HMW coal tar from coal tar using supercritical carbon dioxide (“sCO2”) and a co-solvent;
- a mesophase pitch formation apparatus in communication with the HMW coal tar formation apparatus and configured to form mesophase pitch from HMW coal tar using sCO2;
- a sCO2 source in communication with the HMW coal tar formation apparatus and the mesophase pitch formation apparatus to provide sCO2 thereto;
- and
- a co-solvent source in communication with the HMW coal tar formation apparatus to provide a co-solvent to the HMW coal tar formation apparatus.
2 more elements
A method of processing coal tar, comprising:
- providing an amount of coal tar;
- and
- converting at least some of the amount of coal tar into mesophase pitch using supercritical carbon dioxide (“sCO2”).
A method of forming carbon fibers from coal tar, comprising:
- providing an amount of coal tar;
- converting at least some of the amount of coal tar into mesophase pitch using supercritical carbon dioxide (“sCO2”);
- and
- extruding the mesophase pitch into one or more fibers.
1 more element
Dependencies are inferred from the claim text.