Abstract
This paper is a continuation of our interest in the
influence of temperature on specific retention volumes and the
resulting infinite dilution activity coefficients. This has a direct effect
in the design of absorption and stripping columns for the abatement
of volatile organic compounds. The interaction of 13 volatile organic
compounds (VOCs) with polydimethylsiloxane (PDMS) at varying
temperatures was studied by gas liquid chromatography (GLC).
Infinite dilution activity coefficients and specific retention volumes
obtained in this study were found to be in agreement with those
obtained from static headspace and group contribution methods by
the authors as well as literature values for similar systems.
Temperature variation also allows for transport calculations for
different seasons. The results of this work confirm that PDMS is well
suited for the scrubbing of VOCs from waste gas streams.