Coal-oil slurry preparation

Patent · Tue Jul 12 04:00:00 EDT 1983

OSTI ID:5528801

Tao, J C

A pumpable slurry of pulverized coal in a coal-derived hydrocarbon oil carrier which slurry is useful as a low-ash, low-sulfur clean fuel, is produced from a high sulfur-containing coal. The initial pulverized coal is separated by gravity differentiation into a high density refuse fraction containing the major portion of non-coal mineral products and sulfur, a lowest density fraction of low sulfur content and a middlings fraction of intermediate sulfur and ash content. The refuse fraction is gasified by partial combustion producing a crude gas product from which a hydrogen stream is separated for use in hydrogenative liquefaction of the middlings fraction. The lowest density fraction is mixed with the liquefied coal product to provide the desired fuel slurry. Preferably there is also separately recovered from the coal liquefaction LPG and pipeline gas.

• Assignee: International Coal Refining Co.
• Patent Number(s): US 4392940
• OSTI ID: 5528801
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
CARBONACEOUS MATERIALS
CHEMICAL PREPARATION
COAL
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FREIGHT PIPELINES
FUEL OILS
FUEL SLURRIES
FUELS
HYDRAULIC TRANSPORT
LIQUID FUELS
MATERIALS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PIPELINES
SLURRIES
SLURRY PIPELINES
SUSPENSIONS
SYNTHESIS
TRANSPORT