Method and apparatus for removing micronized coal from steam

Patent · Tue Oct 14 00:00:00 EDT 1980

OSTI ID:6858558

Vlnaty, J

Micronized coal is removed from coal-bearing steam by spraying stabilized petroleum oil into the steam and directing the resultant stream at a separation surface on which a coal-oil slurry is deposited and collected. Apparatus includes conduits which direct the resultant stream downward into a housing and normal to a surface on which the slurry is deposited by impact forces. In additional apparatus disclosed, the resultant stream is directed from a horizontal conduit circumferentially along the interior wall of a horizontally disposed cylindrical chamber at the top of the chamber and the coal-oil slurry deposited on the wall by centrifugal force is collected in a trough situated below a longitudinal slot at the bottom of the chamber. In both types of apparatus, after separation of the slurry the velocity of the steam is reduced to settle out remaining oil droplets and is then discharged to the atmosphere.

• Assignee: Dravo Corp
• Patent Number(s): US 4227892
• OSTI ID: 6858558
• Resource Relation: Patent File Date: Filed date 4 Dec 1978
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL FINES
SEPARATION PROCESSES
COAL PREPARATION
FUEL SLURRIES
PRODUCTION
PETROLEUM
STEAM
COMMINUTION
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MIXTURES
SLURRIES
SUSPENSIONS
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage
010400 - Coal
Lignite
& Peat- Processing