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A flat polymeric membrane sensor for carbon dioxide/nitrogen gas mixture
, Article Chemical Engineering Communications ; Volume 204, Issue 4 , 2017 , Pages 445-452 ; 00986445 (ISSN) ; Mousavi, S. A ; Shojaei, A ; Sharif University of Technology
Taylor and Francis Ltd
2017
Abstract
A gas sensor was developed to measure the concentration of binary gas mixtures. This sensor works based on the permeability change of different gas mixtures across the polymeric membranes. Although high values of permeability and selectivity are needed for an ideal separation, the performance of this sensor mainly depends on the permeability factor. Polysulfone and silicone rubber were applied as the membrane base and coat, respectively. Moreover, in contrast to existing polymeric sensors that use hollow fibers, the present sensor is made of flat membranes. This new design is cheaper, smaller, and easier to use in comparison to the hollow fiber polymeric sensors. In order to test the sensor...