Extraction and upgrading of fossil fuels using fused caustic and acid solutions

Patent · Tue Oct 08 04:00:00 EDT 1985

OSTI ID:5723945

Meyers, R; Hart, W D

A crushed hydrocarbon-bearing material containing hydrocarbon and foreign mineral constituents is dispersed in fused alkali metal caustic to remove the sulfur content and release the foreign mineral matter from the hydrocarbon material for recovery and/or upgrading of the hydrocarbon content. The process permits recovery of 80-95% of the available kerogen or other hydrocarbon in a mineral matrix such as oil shale rock and conditions a solid fossil fuel such as coal, as well as the kerogen or other hydrocarbon released from the mineral matrix, for removal of substantially all remaining ash and other foreign mineral matter by subsequent washing of the hydrocarbon product in an aqueous solution of acid.

• Assignee: TRW Inc.
• Patent Number(s): US 4545891
• OSTI ID: 5723945
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
04 OIL SHALES AND TAR SANDS
040402 -- Oil Shales & Tar Sands-- Surface Methods
ACIDIFICATION
ALKALINE EARTH METAL COMPOUNDS
AQUEOUS SOLUTIONS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CLEANING
COAL
COAL PREPARATION
COMMINUTION
DEASHING
DEMINERALIZATION
DESULFURIZATION
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
KEROGEN
MATERIALS
MINERALS
MIXTURES
OIL SHALES
ORGANIC MATTER
OXYGEN COMPOUNDS
RECOVERY
SEPARATION PROCESSES
SOLUTIONS
WASHING