Process for making metallurgical coke
An improved process for making metallurgical coke is provided as follows. An effluent slurry consisting essentially of coal extract, solvent and undissolved coal is obtained from the liquefaction of coal by solvent extraction. Solvent is removed from the slurry by distillation to produce a bottoms product which contains non-distillable extract, undissolved coal and residual solvent. The bottoms product is flowable at elevated temperatures below its carbonizing temperature and solidifiable at lower temperatures. The bottoms product is blended with sufficient finely divided hot coaly solids (Unsuitable per se for making metallurgical coke) in a hot blending zone which is maintained at a temperature above the softening point of the nondistillable coal extract and below the coking temperature thereof to produce a solidifiable product which, in particulate solidified state, serves as part or all of the feedstock to a coking zone to produce coke suitable for use in a blast furnace.
- Assignee:
- Conoco Inc
- Patent Number(s):
- US 4201655
- OSTI ID:
- 6003267
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
COAL
COAL EXTRACTS
COAL LIQUEFACTION
COKE
COKING
DECOMPOSITION
DISPERSIONS
DISTILLATION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
LIQUEFACTION
MATERIALS
MIXTURES
PRODUCTION
SEPARATION PROCESSES
SLURRIES
SOLVENT EXTRACTION
SUSPENSIONS
THERMOCHEMICAL PROCESSES