Dewaxing process
Patent
·
OSTI ID:6514929
A dewaxing process is disclosed for reducing the pour point of waxy oils in which the oil is cooled by direct contact with a liquid autorefrigerant such as propane. The wax which separates upon cooling is removed by flotation assisted by the bubbles of vaporized autorefrigerant which rise through the oil to form a frothy slurry of wax which can be decanted and the wax recovered from it. A dewaxing solvent such as methyl ethyl ketone may be used to assist separation of the wax.
- Assignee:
- Mobil Oil Corporation
- Patent Number(s):
- US 4447311
- OSTI ID:
- 6514929
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
ALKANES
BUBBLES
COOLING
DEWAXING
ENERGY SOURCES
EXTRACTION
FLOTATION
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
KETONES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PROPANE
REFRIGERANTS
REMOVAL
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SOLVENT EXTRACTION
WAXES
WORKING FLUIDS
020400* -- Petroleum-- Processing
ALKANES
BUBBLES
COOLING
DEWAXING
ENERGY SOURCES
EXTRACTION
FLOTATION
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
KETONES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PROPANE
REFRIGERANTS
REMOVAL
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SOLVENT EXTRACTION
WAXES
WORKING FLUIDS