Differential Measurement of Permeability of Gases and Organic Vapors through Flat Polymer Membranes

  • L. Hendrich Department of Physical Chemistry, Faculty of Chemical Engineering, Institute of Chemical Technology, Prague
  • V. Hynek Department of Physical Chemistry, Faculty of Chemical Engineering, Institute of Chemical Technology, Prague
  • M. Šípek Department of Physical Chemistry, Faculty of Chemical Engineering, Institute of Chemical Technology, Prague

Abstrakt

A new type of differential measurement of permeability was described. The influence of temperature changes and flow rates on the accuracy of permeability measurement were tested and the device was calibrated by gas chromatography. The dependence of measured permeability coefficients on the flow rate of a carrier gas was investigated and a correction for elimination of the flow rate effect was proposed.
Publikované
2005-06-15
Sekce
Články