METHOD OF DETERMINING WEIGHT PORTION OF WATER IN CRUDE OIL AND RESIDUAL DISTILLATION PRODUCTS BY MEASURING DIELECTRIC PERMITTIVITY AT DIFFERENT FREQUENCIES Russian patent published in 2002 - IPC

Abstract RU 2192001 C1

FIELD: analytical methods in oil industry. SUBSTANCE: invention relates to analytical technology of rapid determination of water and oils (mixtures of oils) and residual distillation products and can be used in different areas for analysis of a large number of combustive-lubricating materials and a series of heavy organics. In particular, at temperature from 0 to 100 C and higher, from difference of dielectric permittivities measured at frequencies 1 kHz and 1 MHz, one finds, for a given oil, value of dielectric permittivity corresponding to anhydrous oil at 20 C and calculates weight portion of water from the following formula: , where Δεe = εt20°C-m1•(20-t) is increase in dielectric permittivity at low frequency and temperature t°C caused level of water in oil; concentration coefficient at temperature t kε,t = kε,20+m2•(20-t), where kε,20 is concentration coefficient at 20 C; εt20°C are dielectric permittivities at low frequency for test oil at t°C and for anhydrous oil at 20 C; and m1,m2 denote temperature coefficients. EFFECT: enabled rapid determination of water in oil during oil production, transportation, storage, and processing without performing chemical analyses. 2 ex

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RU 2 192 001 C1

Authors

Babenko V.A.

Vasil'Eva L.K.

Ivanova Z.D.

Igolkin B.I.

Kartashov Ju.I.

Kir'Janov V.I.

Usikov A.S.

Usikov S.V.

Dates

2002-10-27Published

2001-02-15Filed