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Title: Process for producing fluid fuel from coal

Abstract

Process for producing fluid fuel from coal. Moisture-free coal in particulate form is slurried with a hydrogen-donor solvent and the heated slurry is charged into a drum wherein the pressure is so regulated as to maintain a portion of the solvent in liquid form. During extraction of the hydrocarbons from the coal, additional solvent is added to agitate the drum mass and keep it up to temperature. Subsequently, the pressure is released to vaporize the solvent and at least a portion of the hydrocarbons extracted. The temperature of the mass in the drum is then raised under conditions required to crack the hydrocarbons in the drum and to produce, after subsequent stripping, a solid coke residue. The hydrocarbon products are removed and fractionated into several cuts, one of which is hydrotreated to form the required hydrogen-donor solvent while other fractions can be hydrotreated or hydrocracked to produce a synthetic crude product. The heaviest fraction can be used to produce ash-free coke especially adapted for hydrogen manufacture. The process can be made self-sufficient in hydrogen and furnishes as a by-product a solid carbonaceous material with a useful heating value.

Inventors:
 [1];  [2];  [3];  [4]
  1. Winchester, MA
  2. Waltham, MA
  3. Lexington, MA
  4. Arlington, MA
Issue Date:
OSTI Identifier:
862896
Patent Number(s):
4039424
Assignee:
Arthur D. Little, Inc. (Cambridge, MA)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
E(49-18)-1754
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; producing; fluid; fuel; coal; moisture-free; particulate; form; slurried; hydrogen-donor; solvent; heated; slurry; charged; drum; pressure; regulated; maintain; portion; liquid; extraction; hydrocarbons; additional; added; agitate; mass; temperature; subsequently; released; vaporize; extracted; raised; conditions; required; crack; produce; subsequent; stripping; solid; coke; residue; hydrocarbon; products; removed; fractionated; cuts; hydrotreated; fractions; hydrocracked; synthetic; crude; product; heaviest; fraction; ash-free; especially; adapted; hydrogen; manufacture; self-sufficient; furnishes; by-product; carbonaceous; material; useful; heating; value; heating value; especially adapted; hydrocarbon products; donor solvent; carbonaceous material; solid carbonaceous; particulate form; liquid form; solid carbon; hydrogen-donor solvent; hydrocarbon product; fluid fuel; conditions required; synthetic crude; coal process; carbon product; producing fluid; /208/201/

Citation Formats

Hyde, Richard W, Reber, Stephen A, Schutte, August H, and Nadkarni, Ravindra M. Process for producing fluid fuel from coal. United States: N. p., 1977. Web.
Hyde, Richard W, Reber, Stephen A, Schutte, August H, & Nadkarni, Ravindra M. Process for producing fluid fuel from coal. United States.
Hyde, Richard W, Reber, Stephen A, Schutte, August H, and Nadkarni, Ravindra M. Sat . "Process for producing fluid fuel from coal". United States. https://www.osti.gov/servlets/purl/862896.
@article{osti_862896,
title = {Process for producing fluid fuel from coal},
author = {Hyde, Richard W and Reber, Stephen A and Schutte, August H and Nadkarni, Ravindra M},
abstractNote = {Process for producing fluid fuel from coal. Moisture-free coal in particulate form is slurried with a hydrogen-donor solvent and the heated slurry is charged into a drum wherein the pressure is so regulated as to maintain a portion of the solvent in liquid form. During extraction of the hydrocarbons from the coal, additional solvent is added to agitate the drum mass and keep it up to temperature. Subsequently, the pressure is released to vaporize the solvent and at least a portion of the hydrocarbons extracted. The temperature of the mass in the drum is then raised under conditions required to crack the hydrocarbons in the drum and to produce, after subsequent stripping, a solid coke residue. The hydrocarbon products are removed and fractionated into several cuts, one of which is hydrotreated to form the required hydrogen-donor solvent while other fractions can be hydrotreated or hydrocracked to produce a synthetic crude product. The heaviest fraction can be used to produce ash-free coke especially adapted for hydrogen manufacture. The process can be made self-sufficient in hydrogen and furnishes as a by-product a solid carbonaceous material with a useful heating value.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

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