Process for increasing the fuel yield of coal liquefaction products by extraction of asphaltenes, resins and aromatic compounds from said coal liquefaction products

Patent · Tue Jan 09 00:00:00 EST 1979

OSTI ID:6330241

Paraskos, J A; Smith, E W

A process is described for increasing the fuel yield of coal liquefaction products by extracting the asphaltenes, resins and aromatic compounds from said coal liquefaction products. This is accomplished by contacting said coal liquefaction products with a halogenated aliphatic solvent to form two phases, one containing tar and the other containing said solvent and the remainder of said coal liquefaction products, separating said phases from each other and treating said tar phase with a second solvent to recover asphaltenes, resins and/or aromatics in said tar phase. The resulting asphaltenes, resins and/or aromatics are suitable for upgrading to produce additional synthetic fuel.

• Assignee: Gulf Research and Development Co.
• Patent Number(s): US 4133740
• OSTI ID: 6330241
• Resource Relation: Patent File Date: Filed date 21 Oct 1977
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
AROMATICS
REFINING
ASPHALTENES
COAL LIQUIDS
PURIFICATION
RESINS
COAL LIQUEFACTION
REMOVAL
YIELDS
ASPHALTS
BITUMENS
LIQUEFACTION
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
PROCESSING
TAR
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction