$Improvements relating to the treatment of petroleum fractions$

Improvements relating to the treatment of petroleum fractions

A petroleum fraction boiling above 250 DEG C. is treated to increase its content of acids and asphaltenes by ageing in the presence of an oxidizing agent, and is thereafter heated to give a product of reduced pour point. The ageing is preferably effected in the presence of oxygen at 20-200 DEG C. fo...

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Bibliographische Detailangaben
Hauptverfasser:	LAWRANCE PAUL ANTHONY, AITKEN ROBERT WILLIAM, GOBLE ANTHONY GEORGE
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:	A petroleum fraction boiling above 250 DEG C. is treated to increase its content of acids and asphaltenes by ageing in the presence of an oxidizing agent, and is thereafter heated to give a product of reduced pour point. The ageing is preferably effected in the presence of oxygen at 20-200 DEG C. for 2-200 hours. The heating step may be effected at 700-1000 DEG F., preferably at 100-300 p.s.i.g. if it is noncatalytic. Alternatively, the heating step may be a catalytic cracking stop, such as hydrocracking.