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Gas Separation Membrane Testing with Pressure Differential Method
1 /2Pages

Gas Separation Membrane Testing with Pressure Differential Method

Gas Separation Membrane Testing with Pressure Differential Method
1 /2Pages

Catalog excerpts

Gas Separation Membrane Testing with Pressure Differential Method-1

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Gas Separation Membrane Testing with Pressure Differential Method Separation coefficient is a crucial indicator of membrane selectivity for separating gases. Higher separation coefficient signifies better separation ability. The experiment measures nitrogen (N2) and carbon dioxide (CO2) permeability of a membrane sample. This study adopts pressure differential method based on ASTM D1434.The testing instrument used is C106H Gas Permeability Test System by Labthink. Prepare the samples, cut three circular specimens (diameter 97mm), apply vacuum grease and place the filter papers, clamp the samples are in the test chambers. The system is then purged with nitrogen, and test parameters are

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Gas Separation Membrane Testing with Pressure Differential Method-2

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 set on the software. After nitrogen testing, the system is switched to carbon dioxide and the test is repeated. The result showed that the nitrogen permeability coefficient is 6.3289 × 10^11 cm3· cm-2· cm· s-1•cmHg-1. Carbon dioxide permeability coefficient is 1.6455 × 10^-9 cm3· cm-2· cm· s-1•cmHg-1. CO2/N2 separation coefficient: 26.0 In conclusion, the pressure differential method allows measurement of gas permeability coefficients and calculation of separation coefficients. The higher CO2/N2 separation coefficient (26.0) in...

 Open the catalog to page 2

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