Method for removing hydrocarbon contaminants from solid materials
Abstract
A system is described for removing hydrocarbons from solid materials. Contaminated solids are combined with a solvent (preferably terpene based) to produce a mixture. The mixture is washed with water to generate a purified solid product (which is removed from the system) and a drainage product. The drainage product is separated into a first fraction (consisting mostly of contaminated solvent) and a second fraction (containing solids and water). The first fraction is separated into a third fraction (consisting mostly of contaminated solvent) and a fourth fraction (containing residual solids and water). The fourth fraction is combined with the second fraction to produce a sludge which is separated into a fifth fraction (containing water which is ultimately reused) and a sixth fraction (containing solids). The third fraction is then separated into a seventh fraction (consisting of recovered solvent which is ultimately reused) and an eighth fraction (containing hydrocarbon waste). 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- EG & G Idaho Inc
- OSTI Identifier:
- 106695
- Patent Number(s):
- 5454878
- Application Number:
- PAN: 8-198,076
- Assignee:
- Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
- DOE Contract Number:
- AC07-76ID01570
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 3 Oct 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; OIL SPILLS; CLEANING; SOILS; HYDROCARBONS; SOLVENT EXTRACTION; RECYCLING; ORGANIC SOLVENTS; WASTE WATER
Citation Formats
Bala, G A, and Thomas, C P. Method for removing hydrocarbon contaminants from solid materials. United States: N. p., 1995.
Web.
Bala, G A, & Thomas, C P. Method for removing hydrocarbon contaminants from solid materials. United States.
Bala, G A, and Thomas, C P. Tue .
"Method for removing hydrocarbon contaminants from solid materials". United States.
@article{osti_106695,
title = {Method for removing hydrocarbon contaminants from solid materials},
author = {Bala, G A and Thomas, C P},
abstractNote = {A system is described for removing hydrocarbons from solid materials. Contaminated solids are combined with a solvent (preferably terpene based) to produce a mixture. The mixture is washed with water to generate a purified solid product (which is removed from the system) and a drainage product. The drainage product is separated into a first fraction (consisting mostly of contaminated solvent) and a second fraction (containing solids and water). The first fraction is separated into a third fraction (consisting mostly of contaminated solvent) and a fourth fraction (containing residual solids and water). The fourth fraction is combined with the second fraction to produce a sludge which is separated into a fifth fraction (containing water which is ultimately reused) and a sixth fraction (containing solids). The third fraction is then separated into a seventh fraction (consisting of recovered solvent which is ultimately reused) and an eighth fraction (containing hydrocarbon waste). 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {10}
}