GAS SEPARATION COMPOSITE MEMBRANE, GAS SEPARATION MODULE, GAS SEPARATOR, GAS SEPARATION METHOD AND PRODUCTION METHOD OF GAS SEPARATION COMPOSITE MEMBRANE

Japanese Patent JP2015150474

A

PROBLEM TO BE SOLVED: To provide a gas separation composite membrane having a gas separation layer formed with an insoluble polyimide compound, exhibiting superior gas permeability and gas separation selectivity under a high pressure condition and being less likely affected by an impurity component such as toluene and the like existing in natural gas and to provide a production method of the same, a gas separation module using the gas separation composite membrane, a gas separator and a gas separation method.SOLUTION: A gas separation composite membrane having a gas separation layer including a polyimide compound at the upper side of a gas permeable support, a solubility of the polyimide compound to dimethyl acetamide of 20 mg/100 g or less at 20°C and a thickness of the gas separation layer of 0.1 μm or more and less than 5 μm, a production method of the same, a gas separation module using the gas separation composite membrane, a gas separator and gas separation method are provided.

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NAGAI TAKAYASU
SAWAI DAISUKE
SANO SATOSHI

JP2014024632A

August 24, 2015

February 12, 2014

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FUJIFILM CORP

B01D71/64; B01D53/22; B01D69/10; B01D69/12; C01B32/50; C08G73/10

JP2013027819A	2013-02-07
JPH0342026A	1991-02-22
JPS6393326A	1988-04-23
JP2012011361A	2012-01-19
JPH1066847A	1998-03-10

Toshizo Iida
Shuichi Akabane
Naosuke Miyamae

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