Removal of naphthalene from recirculated wash oil

Patent · Tue Sep 01 00:00:00 EDT 1981

OSTI ID:5784651

Burcaw, K R; Watkins, R E

A bleed stream from the recirculating wash oil in a final cooling system for coke oven gas is centrifugally separated into a waste water stream, a sludge stream and a clean, dry oil stream which is substantially free of solids and has a water content less than 0.5% (Wt.). The clean, dry oil stream is heated to less than about 160/sup 0/C., preferably 125/sup 0/-135/sup 0/C, before entering a naphthalene stripper-wash oil still.

• Assignee: Bethlehem Steel Corp
• Patent Number(s): US 4286971
• OSTI ID: 5784651
• Resource Relation: Patent File Date: Filed date 5 Oct 1979
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COKE OVENS
MATERIALS RECOVERY
CENTRIFUGATION
COOLING SYSTEMS
NAPHTHALENE
OILS
REMOVAL
SLUDGES
WASHING
WASTE OILS
WASTE WATER
AROMATICS
CLEANING
CONDENSED AROMATICS
ENERGY SYSTEMS
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
010401* - Coal & Coal Products- Carbonization- (-1987)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management