METHOD FOR PRODUCTION OF HIGH-INDEX AND WAXY EXTRACT

FIELD: petroleum processing. SUBSTANCE: lube fractions are deparaffinated according to integrated three-step filtration, third-step filtrate being withdrawn in the form of a separate stream and second-step filtrate returned into the beginning of process. Deparaffinated oil is subjected to extraction...

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Bibliographische Detailangaben
Hauptverfasser:	NIGMATULLIN V.R, ZOLOTAREV P.A, NIGMATULLIN R.G, KALIMULLIN M.M, SAJFULLIN N.R
Format:	Patent
Sprache:	eng
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:	FIELD: petroleum processing. SUBSTANCE: lube fractions are deparaffinated according to integrated three-step filtration, third-step filtrate being withdrawn in the form of a separate stream and second-step filtrate returned into the beginning of process. Deparaffinated oil is subjected to extraction by N- methylpyrrolidone. Process gives oils with pour point below -15 C and waxy extract with pour point below -25 C. EFFECT: increased yield of oils with viscosity index above 100 and enabled production of waxy extract. 10 tbl, 5 ex