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Title: Coal liquefaction process

Abstract

A process is described for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved liquid fraction is obtained from a vacuum distillation zone and is entirely recycled to extinction. Lower boiling distillable dissolved liquid is removed in vapor phase from the dissolver zone and passed without purification and essentially without reduction in pressure to a catalytic hydrogenation zone where it is converted to an essentially colorless liquid product boiling in the transportation fuel range. 1 fig.

Inventors:
Publication Date:
OSTI Identifier:
7260509
Patent Number(s):
US 4569749; A
Application Number:
PPN: US 6-642579
Assignee:
Gulf Research Development Co., Pittsburgh, PA (United States); Mitsui SRC Development Co., Ltd., Tokyo (Japan); Ruhrkohle AG (Germany) PTO; EDB-94-121117
DOE Contract Number:  
AC22-82PC50001
Resource Type:
Patent
Resource Relation:
Patent File Date: 20 Aug 1984
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; AUTOMOTIVE FUELS; PRODUCTION; COAL LIQUEFACTION; CHEMICAL ENGINEERING; COAL LIQUIDS; HYDROGENATION; PROCESS SOLUTIONS; RECYCLING; CHEMICAL REACTIONS; DISPERSIONS; ENGINEERING; FLUIDS; FUELS; LIQUEFACTION; LIQUIDS; MIXTURES; SOLUTIONS; THERMOCHEMICAL PROCESSES; 010405* - Coal, Lignite, & Peat- Hydrogenation & Liquefaction; 010402 - Coal, Lignite, & Peat- Purification & Upgrading

Citation Formats

Wright, C.H.. Coal liquefaction process. United States: N. p., 1986. Web.
Wright, C.H.. Coal liquefaction process. United States.
Wright, C.H.. Tue . "Coal liquefaction process". United States.
@article{osti_7260509,
title = {Coal liquefaction process},
author = {Wright, C.H.},
abstractNote = {A process is described for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved liquid fraction is obtained from a vacuum distillation zone and is entirely recycled to extinction. Lower boiling distillable dissolved liquid is removed in vapor phase from the dissolver zone and passed without purification and essentially without reduction in pressure to a catalytic hydrogenation zone where it is converted to an essentially colorless liquid product boiling in the transportation fuel range. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {2}
}