Method for reducing oil fouling in heat transfer equipment

Details Method for reducing oil fouling in heat transfer equipment Method for reducing oil fouling in heat transfer equipment

C - Chemistry, Metallurgy

10

G

C10G 75/04 (2006.01) C10G 75/00 (2006.01)

Patent

CA 2695424

A method of reducing asphaltene and particulate induced fouling during the thermal processing of petroleum oils utilizes resin extracts from HSDP crude oils to disperse and solubilize asphaltenes and disperse inorganic particulate contaminants such as salts and iron oxide. The extracts are essentially maltene fractions which may be separated from the HSDP crude by a process of extraction from a precipitated asphalt fraction using light paraffinic solvents such as n-heptane.

L'invention concerne un procédé de réduction de l'encrassement induit par les asphaltènes et les particules lors du traitement thermique d'huiles de pétrole. Le procédé selon l'invention utilise des extraits de résine issus d'huiles brutes HSDP pour disperser et solubiliser les asphaltènes et disperser les contaminants particulaires inorganiques tels que les sels et l'oxyde de fer. Les extraits sont essentiellement des fractions de maltènes qui peuvent être séparées de l'huile brute HSDP par un procédé d'extraction à partir d'une fraction d'asphalte précipitée en utilisant des solvants paraffiniques légers tels que le n-heptane.

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