METHOD OF DEASPHALTING OIL FEEDSTOCK AND OIL FEEDSTOCK DEASPHALTING INSTALLATION FOR IMPLEMENTATION OF METHOD Russian patent published in 2003 - IPC

Abstract RU 2202594 C1

FIELD: petroleum processing. SUBSTANCE: gaseous extractant from asphalt and asphalt-free oil stripping columns is fed into liquid-gas jet apparatus, into which oil feedstockcontaining liquid medium is forced. Liquid medium-extractant mixture leaving liquid-gas jet apparatus is fed into separator and then into extraction column. After extraction, extractant is stripped from asphalt-free oil and asphalt. Installation comprises liquid-gas jet apparatus separator, and pump with its outlet connected to jet apparatus liquid inlet. Gas inlet of the jet apparatus is connected to gas extractant outlet of asphalt and asphalt-free oil stripping columns. Jet apparatus outlet is connected to separator communicating with oil feedstock-supply line. Outlet for liquid medium-extractant mixture is connected to extraction column through pump. EFFECT: intensified extractant condensation process and increased reliability and quality of installation functioning. 16 cl, 1 dwg

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RU 2 202 594 C1

Authors

Tsegel'Skij V.G.

Malashkevich A.V.

Mingaraev S.S.

Reutov A.N.

Dates

2003-04-20—Published

2001-11-29—Filed