Separation of ash and char in the formation of carbon black from coal
A partial combustion process is described for forming carbon black from coal in which the ash and char formed in the process are separated from the carbon black. The process consists of: introducing coal, fuel and air into the top of a vertically oriented down-draft slagging combustor having a slag receiving chamber at the bottom thereof and operating above the melting point of ash to form a rapidly flowing partially combusted stream of molten ash, char, carbon black and flue gas; aggregating the molten ash in the combustor so that aggregated molten ash separates from the partially combusted stream and is deposited in the slag receiving chamber at the bottom of the slagging combustor; removing the separated molten ash from the combustor; introducing the partially combusted stream of char, carbon black and flue gas from the slagging combustor into a char removal chamber and flowing the stream therein at a rate such that the char is deposited at the bottom of the char removal chamber; removing the deposited char from the char removal chamber; and introducing carbon black and flue gas from the char removal chamber to a separator and separating the carbon black from the flue gas.
- Assignee:
- Phillips Petroleum Co., Bartlesville, OK
- Patent Number(s):
- US 4689210
- OSTI ID:
- 6107834
- Resource Relation:
- Patent File Date: Filed date 18 Feb 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ASHES
SEPARATION PROCESSES
CARBON BLACK
PRODUCTION
CHARS
REMOVAL
COAL
COMBUSTION PRODUCTS
AGGLOMERATION
AIR FLOW
COMBUSTORS
DEASHING
DEPOSITION
FLUE GAS
FUELS
MELTING POINTS
SEPARATION EQUIPMENT
SLAGS
CARBON
CARBONACEOUS MATERIALS
ELEMENTS
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
GAS FLOW
GASEOUS WASTES
MATERIALS
NONMETALS
PHYSICAL PROPERTIES
PYROLYSIS PRODUCTS
RESIDUES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WASTES
014000* - Coal
Lignite
& Peat- Combustion