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2 072 343

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IPC

(21) (22)

Application

93057807/04, 1993-12-28

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Actual filing date

1993-12-28

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Published

1997-01-27

(72)

Inventor

Judin V.V.Golubev V.D.Zhernakov L.E.Mataev V.P.Anokhin V.I.Gerasimov A.F.Savel'Ev V.S.Stepanov S.V.Teploukhov F.I.Strepetilov N.F.Gulijants S.T.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Neftekhimicheskij Kombinat"

METHOD OF SEPARATING CONTACT GAS FROM DEHYDROGENATION OF BUTANE- BUTYLENE MIXTURES Russian patent published in 1997 - IPC

Abstract RU 2072343 C1

FIELD: petrochemical industry. SUBSTANCE: method involves separation of butane-butylene-butadiene fraction, its extractive rectification with acetonitrile yielding nonextracted butane-butylene fraction being recycled into dehydrogenation process, and butadiene-containing extract. The latter is rectified to produce crude butadiene and still residue. The still residue of precise fractionating is returned into flux line of the precise fractionating column without preliminary washing out. EFFECT: enhanced efficiency of process. 2 dwg

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RU 2 072 343 C1

Authors

Judin V.V.

Golubev V.D.

Zhernakov L.E.

Mataev V.P.

Anokhin V.I.

Gerasimov A.F.

Savel'Ev V.S.

Stepanov S.V.

Teploukhov F.I.

Strepetilov N.F.

Gulijants S.T.

Dates

1997-01-27—Published

1993-12-28—Filed