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US 2019/0169491 A1Published application
Fracking proppant and method of manufacture
AssigneeDynamic Material Systems, LLC
InventorsArnold Hill, William Easter
Life of this patent
Estimating the term…
Abstract
A material useful as a proppant comprises a core chemically reacted in situ from coal dust and a polymer derived ceramic material, such that at least a portion of the coal dust is chemically converted to a ceramic, nanoparticles, graphene, nanofibers or combinations of any of these.
Claims24
A material useful as a proppant comprises:
- a plurality of particles or rods comprised of a pyrolyzed mixture of coal dust and polymer derived ceramic material, wherein the coal dust comprises carbon and water and is mixed with the polymer derived ceramic material to form a composite mixture, prior to pyrolysis, and the composite mixture is formed into the plurality of particles or rods prior to pyrolysis;
- and
- during pyrolysis, a substantial portion of the coal dust chemically reacts, in situ, forming, after pyrolysis is complete, ceramic, graphene, nanotubes, or nanofibers or any combination of ceramic, graphene, nanotubes or nanofibers, such that the plurality of particles or rods comprise a porous ceramic composite after pyrolysis.
A material useful as a proppant comprises:
- a plurality of extruded, elongated rods having a rod length much greater than a rod diameter, each of the rods being comprised of a mixture of coal dust and polymer derived ceramic material, when initially extruded prior to pyrolysis, wherein the coal dust comprises carbon and water and is mixed with the polymer derived ceramic material to form a composite mixture, the composite mixture being extruded under pressure into rods;
- and
- during pyrolysis, a substantial portion of the coal dust chemically reacts, in situ, forming, after pyrolysis is complete, ceramic, graphene, nanotubes, or nanofibers or any combination of ceramic, graphene, nanotubes or nanofibers, such that the plurality of rods comprise a porous ceramic composite after pyrolysis.
Dependencies are inferred from the claim text.