MEMBRANE SEPARATION METHOD AND MEMBRANE SEPARATION DEVICE

WIPO Patent Application WO/2017/169195

A1

The present invention provides a membrane separation method and a membrane separation device, each of which enables membrane separation of a hydrocarbon mixture with high separation efficiency. A membrane separation method according to the present invention comprises a step (A) wherein a zeolite membrane is exposed to an atmosphere having a dew point of -20°C or less, and a step (B) wherein membrane separation of a hydrocarbon mixture is carried out using the zeolite membrane after the step (A). In addition, a membrane separation device according to the present invention is provided with: a membrane separation module which is provided with a housing and a zeolite membrane that is contained within the housing and performs membrane separation of a hydrocarbon mixture; a starting material supply mechanism which supplies a hydrocarbon mixture to the membrane separation module; and a gas supply mechanism which supplies a gas having a dew point of -20°C or less to a space of the membrane separation module, said space containing the zeolite membrane.

OMORI SHIORI (JP)
SUZUKI TAKAHIRO (JP)
SASANUMA TAKASHI (JP)

PCT/JP2017/005179

October 05, 2017

February 13, 2017

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ZEON CORP (JP)

B01D71/02; B01D53/22; C07C7/144; C07C9/18

WO2011109607A1	2011-09-09
WO2016121377A1	2016-08-04

JP2015160186A	2015-09-07
JP2002282640A	2002-10-02
JP2016159211A	2016-09-05

CORONAS J. ET AL.: "Separations of C4 and C6 Isomers in ZSM-5 Tubular Membranes", IND. ENG. CHEM. RES., vol. 37, 5 January 1998 (1998-01-05), pages 166 - 176, XP002400810
See also references of EP 3437726A4

SUGIMURA Kenji (JP)

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