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Title: Apparatus 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
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
OSTI Identifier:
870288
Patent Number(s):
US 5490531
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; 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; /134/210/

Citation Formats

Bala, Gregory A, and Thomas, Charles P. Apparatus for removing hydrocarbon contaminants from solid materials. United States: N. p., 1996. Web.
Bala, Gregory A, & Thomas, Charles P. Apparatus for removing hydrocarbon contaminants from solid materials. United States.
Bala, Gregory A, and Thomas, Charles P. 1996. "Apparatus for removing hydrocarbon contaminants from solid materials". United States. https://www.osti.gov/servlets/purl/870288.
@article{osti_870288,
title = {Apparatus 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 = {},
url = {https://www.osti.gov/biblio/870288}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}