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2 152 976

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Application

99116236/04, 1999-07-28

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Start date

1999-07-28

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Actual filing date

1999-07-28

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Published

2000-07-20

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Inventor

Lebedev N.A.Khlebnikov V.N.Rakhmatullin Z.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Institut Po Neftepromyslovoj Khimii"

COMPOSITION FOR DEHYDRATION AND DESALTING OF CRUDE OIL AND FOR INHIBITION OF ASPHALTENE-TAR-PARAFFIN DEPOSITS Russian patent published in 2000 - IPC

Abstract RU 2152976 C1

FIELD: crude oil treatment. SUBSTANCE: composition contains, %: nonionic demulsifier, namely, glycerol-based ethylene oxide/propylene oxide block copolymer with 1-30 ethylene oxide units, 20-80; propylene oxide units, 50-80; and molecular weight 3000-6000; 2-5% nonionic surfactant, 2-5; oxyalkylated polyether resin; and solvent, the balance. Composition shows high efficiency in dehydration of emulsion to 0.20-0.26% residual water with consumption 25 to 50 g/t of anhydrous oil providing also its desalting and inhibition of asphaltene-tar-paraffin deposits. EFFECT: improved working characteristics. 2 tbl, 16 ex

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RU 2 152 976 C1

Authors

Lebedev N.A.

Khlebnikov V.N.

Rakhmatullin Z.G.

Dates

2000-07-20—Published

1999-07-28—Filed

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