Method of producing a colloidal fuel from coal and a heavy petroleum fraction. [partial liquefaction of coal in slurry, filtration and gasification of residue]

Patent · Fri Nov 13 04:00:00 EST 1981

OSTI ID:5098516

Longanbach, J R

A method is provided for combining coal as a colloidal suspension within a heavy petroleum fraction. The coal is broken to a medium particle size and is formed into a slurry with a heavy petroleum fraction such as a decanted oil having a boiling point of about 300 to 550/sup 0/C. The slurry is heated to a temperature of 400 to 500/sup 0/C for a limited time of only about 1 to 5 minutes before cooling to a temperature of less than 300/sup 0/C. During this limited contact time at elevated temperature the slurry can be contacted with hydrogen gas to promote conversion. The liquid phase containing dispersed coal solids is filtered from the residual solids and recovered for use as a fuel or feed stock for other processes. The residual solids containing some carbonaceous material are further processed to provide hydrogen gas and heat for use as required in this process.

• DOE Contract Number: AC01-79ER10062
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE82020888
• OSTI ID: 5098516
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
014000* -- Coal
Lignite
& Peat-- Combustion
02 PETROLEUM
025000 -- Petroleum-- Combustion
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUEL OILS
FUEL SLURRIES
FUELS
GASIFICATION
HYDROGENATION
LIQUID FUELS
MATERIALS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
RESIDUES
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES