Direct coal liquefaction process

Patent · Tue Oct 26 00:00:00 EDT 1993

OSTI ID:5458907

Rindt, J R; Hetland, M D

An improved multistep liquefaction process for organic carbonaceous mater which produces a virtually completely solvent-soluble carbonaceous liquid product. The solubilized product may be more amenable to further processing than liquid products produced by current methods. In the initial processing step, the finely divided organic carbonaceous material is treated with a hydrocarbonaceous pasting solvent containing from 10% and 100% by weight process-derived phenolic species at a temperature within the range of 300 C to 400 C for typically from 2 minutes to 120 minutes in the presence of a carbon monoxide reductant and an optional hydrogen sulfide reaction promoter in an amount ranging from 0 to 10% by weight of the moisture- and ash-free organic carbonaceous material fed to the system. As a result, hydrogen is generated via the water/gas shift reaction at a rate necessary to prevent condensation reactions. In a second step, the reaction product of the first step is hydrogenated.

• DOE Contract Number: FC21-86MC10637
• Assignee: Energy and Environmental Research Center Foundation, Grand Forks, ND (United States)
• Patent Number(s): US 5256278; A
• Application Number: PPN: US 7-843909
• OSTI ID: 5458907
• Resource Relation: Patent File Date: 27 Feb 1992
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL LIQUEFACTION
PERFORMANCE
COAL LIQUIDS
HYDROGENATION
CARBONACEOUS MATERIALS
HYDROGEN PRODUCTION
SOLVENT EXTRACTION
CHEMICAL REACTIONS
EXTRACTION
FLUIDS
LIQUEFACTION
LIQUIDS
MATERIALS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction