SOLVENT EXTRACTION RECOVERY OF SHALE OIL

An improved process for solvent extraction of organic matter from shale by two extraction steps in sequence. The extraction steps are: (a) treating a kerogen-containing shale with a solvent system comprising a combination of water and an alcohol at a temperature of about 375.degree.-425.degree.C, an...

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Bibliographische Detailangaben
Hauptverfasser:	CHONG, SHUANG-LING, MCKAY, JOHN F
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	An improved process for solvent extraction of organic matter from shale by two extraction steps in sequence. The extraction steps are: (a) treating a kerogen-containing shale with a solvent system comprising a combination of water and an alcohol at a temperature of about 375.degree.-425.degree.C, and (b) treating the product of (a) with a solvent system comprising a combination of an alcohol and another organic solvent at an elevated temperature, but not above about 425.degree.C. The organic matter is recovered by separating the liquid which results from step (b) from the shale solids.