Drying low rank coal and retarding spontaneous ignition
Patent
·
OSTI ID:5934366
A method is described of passivating and cooling heated dried coal comprising: (a) heating particulate coal to a temperature between about 190 and about 230/sup 0/F to dry to the desired level: and (b) coating the resulting heated particulate coal with an aqueous emulsion of a hydrocarbon selected from the group consisting of petroleum resid, light cycle oil, heavy cycle oil, clarified slurry oil, durene, asphaltenes, coal tar and coal tar pitch.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4828575
- OSTI ID:
- 5934366
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010600 -- Coal
Lignite
& Peat-- Properties & Composition
ADDITIVES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL FINES
COAL PREPARATION
COMBUSTION
DRYING
EMULSIFICATION
EMULSIFIERS
OXIDATION
PASSIVATION
PETROLEUM PRODUCTS
SPONTANEOUS COMBUSTION
THERMOCHEMICAL PROCESSES
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010600 -- Coal
Lignite
& Peat-- Properties & Composition
ADDITIVES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL FINES
COAL PREPARATION
COMBUSTION
DRYING
EMULSIFICATION
EMULSIFIERS
OXIDATION
PASSIVATION
PETROLEUM PRODUCTS
SPONTANEOUS COMBUSTION
THERMOCHEMICAL PROCESSES