	US 11,724,941 B2
	Synthesis of micron and nanoscale carbon spheres and structures using hydrothemal carbonization
Marko Hakovirta, Raleigh, NC (US); Daniel Saloni, Raleigh, NC (US); and Richard Venditti, Raleigh, NC (US)
Assigned to North Carolina State University, Raleigh, NC (US)
Appl. No. 16/970,265
Filed by North Carolina State University, Raleigh, NC (US)
PCT Filed Feb. 15, 2019, PCT No. PCT/US2019/018312 § 371(c)(1), (2) Date Aug. 14, 2020, PCT Pub. No. WO2019/161272, PCT Pub. Date Aug. 22, 2019.
Claims priority of provisional application 62/631,108, filed on Feb. 15, 2018.
Prior Publication US 2021/0107796 A1, Apr. 15, 2021
Int. Cl. C01B 32/05 (2017.01); C01B 32/318 (2017.01)

CPC C01B 32/318 (2017.08) [C01B 32/05 (2017.08); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/64 (2013.01)]

39 Claims

1. A method for preparing a carbon powder from a cellulose-containing liquid, the method comprising exposing the cellulose-containing liquid to a hydrothermal carbonization process to convert carbonaceous material present therein into a carbon powder;

wherein the cellulose-containing liquid comprises about 5% micro—and/or nanofibrillated cellulose by weight in water.