Process for deoiling and dewatering sludges
Patent
·
OSTI ID:6683584
The invention relates to a process for deoiling and dewatering oil- and water-containing sludges by the use of light hydrocarbons. It has been discovered that by contacting refinery sludges with light hydrocarbons, it is possible to obtain excellent phase separation with attendant deoiling of the solids and separation of the oil-hydrocarbon from the water-solids phase. The present process does not require centrifuging. Settling and decanting effect separation of the oil-hydrocarbon from the solids-water phase. Light hydrocarbons suitable for the practice of the invention include butane, pentane and hexane, as well as mixtures and isomers thereof. (7 claims)
- Assignee:
- EDB-83-022415
- Patent Number(s):
- GB 1364942
- OSTI ID:
- 6683584
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020800* -- Petroleum-- Waste Management
ALKANES
BUTANE
EXTRACTION
HEXANE
HYDROCARBONS
INDUSTRIAL PLANTS
MANAGEMENT
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PENTANE
PETROLEUM REFINERIES
PROCESSING
REMOVAL
SEPARATION PROCESSES
SLUDGES
SOLVENT EXTRACTION
WASTE MANAGEMENT
WASTE OILS
WASTE PROCESSING
WATER REMOVAL
020800* -- Petroleum-- Waste Management
ALKANES
BUTANE
EXTRACTION
HEXANE
HYDROCARBONS
INDUSTRIAL PLANTS
MANAGEMENT
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PENTANE
PETROLEUM REFINERIES
PROCESSING
REMOVAL
SEPARATION PROCESSES
SLUDGES
SOLVENT EXTRACTION
WASTE MANAGEMENT
WASTE OILS
WASTE PROCESSING
WATER REMOVAL