Method for inspecting separation membrane module and method for manufacturing separation membrane module

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United States of America Patent

PATENT NO 11872520
SERIAL NO

16564196

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Abstract

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A method for inspecting a separation membrane module has a sealing step for sealing a gas for inspection on a primary side of zeolite membrane. The dynamic molecular diameter for the gas for inspection is greater than 1.07 times the pore diameter in the zeolite membrane. The gas for inspection has the characteristic of having a rate of reduction for a CO2 gas permeation rate in the zeolite membrane of less than 10% when a separation membrane structure is allowed to stand for 60 minutes in the gas for inspection at 25 degrees C. and 0.1 MPaG.

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Patent Owner(s)

Patent OwnerAddress
NGK INSULATORS LTDJAPAN'S AICHI AICHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagio, Takeshi Inazawa, JP 59 1243
Ichikawa, Makiko Nagoya, JP 32 86
Shimizu, Katsuya Nagoya, JP 60 223
Yajima, Kenji Nagoya, JP 40 301

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