METHOD FOR DEHYDRATION AND DESALTING OF PETROLEUM

FIELD: petroleum chemistry, chemical technology. ^ SUBSTANCE: invention relates to using anionic surface-active substances as a petroleum-soluble demulsifying agent used in processes of deep dehydration and desalting of the oil raw in it preparing to the further processing. For realization of method...

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Hauptverfasser:	ROGOV MAKSIM NIKOLAEVICH, ZIDIKHANOV MINIGARIF RASHITOVICH, GALJAUTDINOV ANVER AMIROVICH, ISHMIJAROV MARAT KHAFIZOVICH, BASIMOVA RASHIDA ALMAGIEVNA, RAKHIMOV KHALIL KHALJAFOVICH, PAVLOV MIKHAIL LEONARDOVICH
Format:	Patent
Sprache:	eng ; rus
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 chemistry, chemical technology. ^ SUBSTANCE: invention relates to using anionic surface-active substances as a petroleum-soluble demulsifying agent used in processes of deep dehydration and desalting of the oil raw in it preparing to the further processing. For realization of method demulsifying additive is added to the oil emulsion by dosing pump or into pipeline directly after a hole, or in the raw feeding line to a device for petroleum preparing. As a demulsifying additive method involves using solution of anionic surface-active substance based on carboxymethylates of oxyethylated isononylphenols of the formula: C9H19-C6H4-O-(CH2-CH2O)n-CH2COONa wherein n = 10-12 in the presence of methanol-aldehyde fraction as a low-temperature solvent representing waste in production of butyl alcohols. The process is carried out at temperature 80°C. Method provides enhancing effectiveness of dehydration and desalting degree of crude oil. ^ EFFECT: improved method for dehydration and desalting. ^ 4 ex