Direct coal liquefaction process
Abstract
An improved multistep liquefaction process for organic carbonaceous mater which produces a virtually completely solvent-soluble carbonaceous liquid product. The solubilized product may be more amenable to further processing than liquid products produced by current methods. In the initial processing step, the finely divided organic carbonaceous material is treated with a hydrocarbonaceous pasting solvent containing from 10% and 100% by weight process-derived phenolic species at a temperature within the range of 300.degree. C. to 400.degree. C. for typically from 2 minutes to 120 minutes in the presence of a carbon monoxide reductant and an optional hydrogen sulfide reaction promoter in an amount ranging from 0 to 10% by weight of the moisture- and ash-free organic carbonaceous material fed to the system. As a result, hydrogen is generated via the water/gas shift reaction at a rate necessary to prevent condensation reactions. In a second step, the reaction product of the first step is hydrogenated.
- Inventors:
-
- Grand Forks, ND
- Issue Date:
- Research Org.:
- Univ. of North Dakota, Grand Forks, ND (United States)
- OSTI Identifier:
- 868979
- Patent Number(s):
- 5256278
- Assignee:
- Energy and Environmental Research Center Foundation (EERC Foundation) (Grand Forks, ND)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
- DOE Contract Number:
- FC21-86MC10637
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- direct; coal; liquefaction; process; improved; multistep; organic; carbonaceous; mater; produces; virtually; completely; solvent-soluble; liquid; product; solubilized; amenable; processing; products; produced; current; methods; initial; step; finely; divided; material; treated; hydrocarbonaceous; pasting; solvent; containing; 10; 100; weight; process-derived; phenolic; species; temperature; range; 300; degree; 400; typically; minutes; 120; presence; carbon; monoxide; reductant; optional; hydrogen; sulfide; reaction; promoter; amount; ranging; moisture-; ash-free; fed; result; generated; via; water; gas; shift; rate; prevent; condensation; reactions; hydrogenated; organic carbon; organic carbonaceous; solvent containing; liquefaction process; carbon monoxide; coal liquefaction; carbonaceous material; hydrogen sulfide; reaction product; finely divided; liquid products; liquid product; carbonaceous liquid; products produced; shift reaction; processing step; gas shift; virtually complete; /208/44/
Citation Formats
Rindt, John R, and Hetland, Melanie D. Direct coal liquefaction process. United States: N. p., 1993.
Web.
Rindt, John R, & Hetland, Melanie D. Direct coal liquefaction process. United States.
Rindt, John R, and Hetland, Melanie D. Fri .
"Direct coal liquefaction process". United States. https://www.osti.gov/servlets/purl/868979.
@article{osti_868979,
title = {Direct coal liquefaction process},
author = {Rindt, John R and Hetland, Melanie D},
abstractNote = {An improved multistep liquefaction process for organic carbonaceous mater which produces a virtually completely solvent-soluble carbonaceous liquid product. The solubilized product may be more amenable to further processing than liquid products produced by current methods. In the initial processing step, the finely divided organic carbonaceous material is treated with a hydrocarbonaceous pasting solvent containing from 10% and 100% by weight process-derived phenolic species at a temperature within the range of 300.degree. C. to 400.degree. C. for typically from 2 minutes to 120 minutes in the presence of a carbon monoxide reductant and an optional hydrogen sulfide reaction promoter in an amount ranging from 0 to 10% by weight of the moisture- and ash-free organic carbonaceous material fed to the system. As a result, hydrogen is generated via the water/gas shift reaction at a rate necessary to prevent condensation reactions. In a second step, the reaction product of the first step is hydrogenated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}