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2 500 661

(13)

(51)

IPC

C07C9/04(2006-01-01)

B01D53/34(2006-01-01)

B01D53/72(2006-01-01)

B01D53/14(2006-01-01)

(21) (22)

Application

2012146589/04, 2012-11-01

(24)

Start date

2012-11-01

(22)

Actual filing date

2012-11-01

(45)

Published

2013-12-10

(72)

Inventor

Semenov Anton PavlovichViktorov Andrej SergeevichVinokurov Vladimir Arnol'DovichShuvalov Sergej AleksandrovichVolkov Andrej SergeevichRodionova Alena Valer'Evna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet Nefti I Gaza Imeni I.M. Gubkina"

METHOD OF EXTRACTING METHANE FROM GAS MIXTURES Russian patent published in 2013 - IPC C07C9/04 B01D53/34 B01D53/72 B01D53/14

Abstract RU 2500661 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of extracting methane from gas mixtures by bringing the mixture into contact with an aqueous solution of a cyclic ether with concentration of not more than 20 mol % at temperature not higher than 20°C and pressure of up to 3.0 MPa to obtain a condensed phase containing mixed hydrates of methane and the cyclic ether and a gas phase, separating the gas phase, extracting methane from the condensed phase and recycling the aqueous solution of the cyclic ether for extraction.

EFFECT: method enables to efficiently extract methane from gas mixtures by simplifying the process, particularly lowering the separation pressure.

2 cl, 8 tbl, 8 ex, 1 dwg

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RU 2 500 661 C1

Authors

Semenov Anton Pavlovich

Viktorov Andrej Sergeevich

Vinokurov Vladimir Arnol'Dovich

Shuvalov Sergej Aleksandrovich

Volkov Andrej Sergeevich

Rodionova Alena Valer'Evna

Dates

2013-12-10—Published

2012-11-01—Filed