[특허]Method for removing hydrocarbon contaminants from solid materials

Method for removing hydrocarbon contaminants from solid materials 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B08B-007/04 C23G-001/36
출원번호	US-0198076 (1994-02-17)
발명자 / 주소	Bala Gregory A. (Idaho Falls ID) Thomas Charles P. (Idaho Falls ID)
출원인 / 주소	Lockheed Idaho Technologies Company (Idaho Falls ID 02)
인용정보	피인용 횟수 : 25 인용 특허 : 0

초록 ▼

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).

대표청구항 ▼

A method for removing hydrocarbon contaminants from solid materials comprising the steps of: providing a supply of solid material combined with at least one hydrocarbon contaminant composition; providing a supply of a solvent designed to remove said hydrocarbon contaminant composition from said solid material, said solvent comprising at least one terpene composition; combining said solid material with said solvent in order to form a mixture; applying a supply of water to said mixture so that said water passes therethrough in order to produce a drainage product and a purified solid product separate from said drainage product, said drainage product comprising said water, said solvent with said hydrocarbon contaminant composition dissolved therein, and finely-divided portions of said solid material; separating said drainage product into a first fraction and a second fraction, said first fraction comprising said solvent with said hydrocarbon contaminant composition dissolved therein, and said second fraction comprising said water and said finely-divided portions of said solid material; separating said first fraction into a third fraction and a fourth faction, said third fraction comprising said solvent with said hydrocarbon contaminant composition dissolved therein, and said fourth fraction comprising any residual water and residual solid material which remained in said first fraction after said separating of said drainage product into said first fraction and said second fraction; combining said second fraction and said fourth fraction to form a sludge product; separating said sludge product into a fifth fraction and a sixth fraction, said fifth fraction comprising said water from said second fraction and said residual water from said fourth fraction which combine to produce a supply of recycled water, with said sixth fraction comprising said finely-divided portions of said solid material from said second fraction and said residual solid material from said fourth fraction; separating said third fraction into a seventh fraction and an eighth fraction, said seventh fraction comprising a supply of recovered solvent, and said eighth fraction comprising said hydrocarbon contaminant composition; collecting said supply of recovered solvent in order to subsequently treat any additional amounts of contaminated solid material; and collecting said supply of recycled water so that said recycled water may be applied to said additional amounts of contaminated solid material.

이 특허를 인용한 특허 (25)

Potts, Mark H., Alcohol-solvent extraction system.
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Vasshus, Jan Kristian; Malmin, Arne, Cleaning device for separating hydrocarbons from solid particles.
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Hernandez, Jose Rafael; Camacho, Antonio Ruben, Composition, method and apparatus for soil remediation.
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Waibel, Brian Jeffrey; Morton, Wayne C.; Cope, Sandra M., Dense gas means for extraction of a solute from solids.
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Schlosberg, Richard Henry; Larson, Thomas; Yezrielev, Albert Ilya; Knudsen, George, Environmentally preferred fluids and fluid blends.
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Yezrielev Albert Ilya ; Schlosberg Richard Henry ; Knudsen George Andrew ; Larson Thomas Marshall, Environmentally preferred fluids and fluid blends.
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Fan, Liang-tseng; Shafie, Mohammad Reza, Extraction of hydrocarbons from hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Mohammad Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Shahram Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Mohammad Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Shahram Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Shahram Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials.
상세보기
Fan, Liang-tseng; Shafie, Shahram Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials.
상세보기
Fan, Liang-tseng; Shafie, Shahram Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Mohammad Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, In situ extraction of hydrocarbons from hydrocarbon-containing materials.
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Fan, Liang-tseng; Shafie, Shahram Reza; Tollas, Julius Michael; Lee, William Arthur Fitzhugh, In situ extraction of hydrocarbons from hydrocarbon-containing materials.
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Marie-Odile Lafon FR, Liquid de-inking compositions based on polyalkoxylated terpenic compounds and their use for de-inking.
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Stephenson Robert J. (Vancouver CAX) Nelson John C. (Vancouver CAX) Lim Choom J. (Vancouver CAX) Lim Kok-Seng (Vancouver CAX), Mobile soil treatment apparatus and method.
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Stephenson Robert John,CAX ; Lim Choom Jim,CAX ; Lim Kok-Seng,CAX, Mobile soil treatment apparatus and method.
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James C. McClure ; Thomas W. McNally ; Francis A. Marks ; J. Leland Strange, Parts washing system.
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James C. McClure ; Thomas W. McNally ; J. Leland Strange, Parts washing system.
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McClure James C. ; McNally Thomas W. ; Marks Francis A. ; Strange J. Leland, Parts washing system.
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Strange J. Leland, Parts washing system.
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Lazarowitz Virginia L. ; Urfer Allen D. ; Smith George A., Process for soil remediation.
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Kevin Gerard Keenan IE, Washed sand drying and handling plant.
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Method for removing hydrocarbon contaminants from solid materials 원문보기

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