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Title: Method for removing hydrocarbon contaminants from solid materials

Abstract

A system 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).

Inventors:
 [1];  [1]
  1. (Idaho Falls, ID)
Issue Date:
Research Org.:
EG & G IDAHO INC
OSTI Identifier:
870089
Patent Number(s):
5454878
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID) INEEL
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; removing; hydrocarbon; contaminants; solid; materials; hydrocarbons; contaminated; solids; combined; solvent; preferably; terpene; based; produce; mixture; washed; water; generate; purified; product; removed; drainage; separated; fraction; consisting; containing; third; fourth; residual; sludge; fifth; ultimately; reused; sixth; seventh; recovered; eighth; waste; containing solids; residual solids; containing solid; solid materials; solid material; solid product; containing water; third fraction; residual solid; removing hydrocarbon; removing hydrocarbons; moving hydrocarbons; hydrocarbon contaminants; terpene based; preferably terpene; contaminated solids; containing hydrocarbon; /134/203/210/405/

Citation Formats

Bala, Gregory A., and Thomas, Charles P. Method for removing hydrocarbon contaminants from solid materials. United States: N. p., 1995. Web.
Bala, Gregory A., & Thomas, Charles P. Method for removing hydrocarbon contaminants from solid materials. United States.
Bala, Gregory A., and Thomas, Charles P. Sun . "Method for removing hydrocarbon contaminants from solid materials". United States. https://www.osti.gov/servlets/purl/870089.
@article{osti_870089,
title = {Method for removing hydrocarbon contaminants from solid materials},
author = {Bala, Gregory A. and Thomas, Charles P.},
abstractNote = {A system 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).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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