Title:
METHOD FOR EVALUATING QUALITY OF GAS SEPARATION MEMBRANE, AND EVALUATION DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/123515
Kind Code:
A1
Abstract:
Provided are a method, and an evaluation device therefor, for deriving an actual separation coefficient that indicates the performance of an actual separation membrane, while maintaining the advantage of simplicity of an evaluation means for an ideal separation coefficient. The present invention is a method for evaluating the quality of a gas separation membrane for separating a mixed gas, the mixed gas including a first component gas and a second component gas that is more difficult to pass through the gas separation membrane than the first component gas, the method including: a step (1) for calculating the permeability of the first component gas when the first component gas is passed through the gas separation membrane as a single gas; a step (2) for calculating the permeability of the second component gas when the second component gas is passed through the gas separation membrane as a single gas; a step (3) for calculating an ideal separation coefficient of the gas separation membrane for the mixed gas, based on the ratio of the calculated permeability of the first component gas to the calculated permeability of the second component gas; and a step (4) for converting the ideal separation coefficient calculated in step (3) to an actual separation coefficient for each of a plurality of gas separation membranes, using the correlation relationship between the ideal separation coefficient derived in advance and the actual separation coefficient indicating the actual separation performance for the mixed gas.
Inventors:
GONDO DAISUKE (JP)
ITAKURA MASAYA (JP)
IMASAKA SATOSHI (JP)
ITAKURA MASAYA (JP)
IMASAKA SATOSHI (JP)
Application Number:
PCT/JP2017/044167
Publication Date:
July 05, 2018
Filing Date:
December 08, 2017
Export Citation:
Assignee:
HITACHI SHIPBUILDING ENG CO (JP)
International Classes:
B01D65/10; B01D53/22; B01D69/00; B01D69/12; B01D71/02; C04B41/85
Domestic Patent References:
| WO2009054460A1 | 2009-04-30 | |||
| WO2016121888A1 | 2016-08-04 |
Foreign References:
| JPH0398631A | 1991-04-24 | |||
| JPS61114714A | 1986-06-02 | |||
| JP2012066242A | 2012-04-05 | |||
| JP2009034614A | 2009-02-19 |
Attorney, Agent or Firm:
MATSUMURA, Naoto et al. (JP)
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