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(19)

(11)

2 527 284

(13)

(51)

IPC

C07C7/04(2006-01-01)

C07C7/12(2006-01-01)

C07C15/08(2006-01-01)

C10G25/00(2006-01-01)

(21) (22)

Application

2013112028/04, 2010-12-15

(24)

Start date

2010-12-15

(22)

Actual filing date

2010-12-15

(45)

Published

2014-08-27

(72)

Inventor

Verba Gregori R.Chzhu Sin' S.Dehli Fillip F.Ulas Adzhikgoz SaadetKorradi Dzhejson T.Ehblin Dejvid V.

(73)

Holder

Juop Llk

ENERGY-SAVING DURING FRACTIONATION OF HEAVY HYDROCARBONS Russian patent published in 2014 - IPC C07C7/04 C07C7/12 C07C15/08 C10G25/00

Abstract RU 2527284 C1

FIELD: chemistry.

SUBSTANCE: one previously unutilised opportunity to save energy is using two similar fractionation columns operating at different pressure to separate C8 aromatic compounds from C9+ aromatic compounds. A stream removed from below the second xylene column at the fraction step enables to supply heat to a reboiler which is under pressure of the raffinate column.

EFFECT: similar columns enable further energy-saving within the apparatus owing to heat exchange with interlinked equipment involved in xylene extraction.

25 cl, 8 dwg, 1 ex

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RU 2 527 284 C1

Authors

Verba Gregori R.

Chzhu Sin' S.

Dehli Fillip F.

Ulas Adzhikgoz Saadet

Korradi Dzhejson T.

Ehblin Dejvid V.

Dates

2014-08-27—Published

2010-12-15—Filed