	US 12,441,941 B2
	Upgrading pyrolysis carbon
Guang Cao, Princeton, NJ (US); James R. Bielenberg, Lebanon, NJ (US); August W. Bosse, Pennington, NJ (US); David C. Dankworth, Princeton, NJ (US); Sumathy Raman, Annandale, NJ (US); and Michael Siskin, Westfield, NJ (US)
Assigned to Exxon Mobil Technology and Engineering Company, Spring, TX (US)
Appl. No. 18/274,021
Filed by ExxonMobil Technology and Engineering Company, Annandale, NJ (US)
PCT Filed Jan. 27, 2022, PCT No. PCT/US2022/014010 § 371(c)(1), (2) Date Jul. 25, 2023, PCT Pub. No. WO2022/169659, PCT Pub. Date Aug. 11, 2022.
Claims priority of provisional application 63/145,590, filed on Feb. 4, 2021.
Prior Publication US 2024/0425759 A1, Dec. 26, 2024
Int. Cl. C01B 3/24 (2006.01); C10G 1/08 (2006.01)

CPC C10G 1/083 (2013.01) [C01B 3/24 (2013.01); C01B 2203/065 (2013.01); C01B 2203/0833 (2013.01); C01B 2203/0855 (2013.01); C01B 2203/0861 (2013.01)]

24 Claims

1. A method for upgrading pyrolysis carbon, comprising:

combining particles of pyrolysis carbon with a solvent to form a slurry, the pyrolysis carbon comprising an atomic hydrogen to carbon ratio of from 0.04 to 0.20; and

exposing the particles of pyrolysis carbon to hydrogen in the presence of a catalyst under slurry hydroprocessing conditions to form an upgraded carbon product comprising an atomic hydrogen to carbon ratio of 0.25 or more; wherein the pyrolysis carbon comprises carbon-based substances formed during pyrolysis of methane to form hydrogen.