Treating sludges and soil materials contaminated with hydrocarbons

Patent · Tue Nov 29 04:00:00 EST 1988

OSTI ID:6434912

Beer, G L; Li, Y H

This patent describes a system for treating oily sludges containing small amounts of solids, wherein the oily sludges are primarily a flowable liquid mixture, the system comprising: dryer means including an inlet, a vapor outlet and a solids discharge outlet; oxidation means in communication with the solids discharge outlet for receiving dried solids and for combusting hydrocarbons remaining on the dried solids to provide substantially hydrocarbon free solids; a source of solids material having a particle size which averages about one inch or less and having a relatively high liquid absorptive capacity; means for mixing the oily sludge with the solids and for conveying a mixture of the oily sludge and the solids in the form of a substantially thickened sludge to the inlet of the dryer means; and condenser means connected to the vapor outlet of the dryer means for receiving vapors of the oily sludge from the dryer.

• Assignee: Atlantic Richfield Co., Los Angeles, CA
• Patent Number(s): US 4787323
• OSTI ID: 6434912
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020800* -- Petroleum-- Waste Management
CHEMICAL REACTIONS
CONDENSERS
DESIGN
DRYERS
DRYING
ENERGY SOURCES
EVAPORATION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
INDUSTRIAL PLANTS
MANAGEMENT
MATERIALS HANDLING
OXIDATION
PARTICLES
PARTICULATES
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PHASE TRANSFORMATIONS
PROCESSING
SLUDGES
SOLID WASTES
SORPTION
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PROCESSING PLANTS
WASTES