US 12,006,219 B2
Thermo-chemical processing of coal via solvent extraction
William Schaffers, Laramie, WY (US); David Bell, Laramie, WY (US); John Myers, Laramie, WY (US); Kaspars Krutkramelis, Laramie, WY (US); and Paul Behrens, Laramie, WY (US)
Assigned to UNIVERSITY OF WYOMING, Laramie, WY (US)
Appl. No. 17/436,526
Filed by University of Wyoming, Laramie, WY (US)
PCT Filed Mar. 12, 2020, PCT No. PCT/US2020/022300
§ 371(c)(1), (2) Date Sep. 3, 2021,
PCT Pub. No. WO2020/186011, PCT Pub. Date Sep. 17, 2020.
Claims priority of provisional application 62/817,184, filed on Mar. 12, 2019.
Prior Publication US 2022/0177312 A1, Jun. 9, 2022
Int. Cl. C01B 32/184 (2017.01); C08L 95/00 (2006.01); C10B 57/08 (2006.01); C10G 1/04 (2006.01)
CPC C01B 32/184 (2017.08) [C08L 95/00 (2013.01); C10B 57/08 (2013.01); C10G 1/042 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method of processing a coal-based feed stock to make a high value product, said method comprising:
providing said coal-based feedstock, wherein said coal-based feedstock is at least partially derived from coal;
contacting said coal-based feedstock with one or more solvents under solvent treatment conditions for generating a soluble phase product and a remainder insoluble phase product; and
fractionating said soluble phase product generating at least two fractions under conditions such that at least one of said fractionated products is said high value product;
wherein said fractionating comprises a partial precipitation, fractional crystallization, fractional freezing or any combination of these, thereby generating one or more one or more precipitated fractions and one or more remainder liquid phase fractions.