Direct use of methane in coal liquefaction

Patent · Wed Jun 19 04:00:00 EDT 1985

OSTI ID:5674192

Sundaram, M S; Steinberg, M

This invention relates to a process for converting solid carbonaceous material, such as coal, to liquid and gaseous hydrocarbons utilizing methane, generally at a residence time of about 20 to 120 minutes at a temperature of 250 to 750/sup 0/C, preferably 350 to 450/sup 0/C, pressurized up to 6000 psi, and preferably in the 1000 to 2500 psi range, preferably directly utilizing methane 50 to 100% by volume in a mix of methane and hydrogen. A hydrogen donor solvent or liquid vehicle such as tetralin, tetrahydroquinoline, piperidine, and pyrolidine may be used in a slurry mix where the solvent feed is 0 to 100% by weight of the coal or carbonaceous feed. Carbonaceous feed material can either be natural, such as coal, wood, oil shale, petroleum, tar sands, etc., or man-made residual oils, tars, and heavy hydrocarbon residues from other processing systems. 1 fig.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE86013732
• OSTI ID: 5674192
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKANES
ALKYLATION
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
DIAGRAMS
ELEMENTS
ENERGY SOURCES
FLOWSHEETS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
HYDROGEN TRANSFER
LIQUEFACTION
MATERIALS
METHANE
NATURAL GAS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
SOLVENTS
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE