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Temperature effect on volatile organic compounds – polydimethylsiloxane Interactions

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dc.contributor.author Muzenda, Edison
dc.contributor.author Ntuli, Freeman
dc.date.accessioned 2012-03-26T06:40:55Z
dc.date.available 2012-03-26T06:40:55Z
dc.date.issued 2011
dc.identifier.citation International Journal of Chemical Engineering and Applications, Vol. 2, No. 6, Dec. 2011 en_US
dc.identifier.issn 2010-0221
dc.identifier.uri http://hdl.handle.net/10210/4559
dc.description.abstract Temperature dependence of specific retention volumes (og V) of 13 volatile organic compounds (VOCs) of environmental importance between the gas and liquid stationary phase (polydimethysiloxane) (PDMS) were studied using the gas liquid chromatographic technique (GLC). Temperature was varied from 303.15K to 423.15K to allow transport calculations for different seasons. Four PDMS polymers with average molecular weight ranging from 760 to 13 000 were used as solvents. The results of this work confirm that PDMS is well suited for VOCs scrubbing from waste gas streams. Linear plots of log g V against T1 were obtained in all cases permitting predictions and interpolations to temperatures not studied here. Also dependable enthalpies and entropies of solute transfer from the mobile phase to the stationary phase can be calculated. The specific retention volumes reported in this work are in agreement with literature for similar systems. Efforts were taken to ensure the best possible accuracy and trace the possible sources of error. A gas liquid chromatographic system which secured a simple retention mechanism and showed reproducible solute retention over a long period of time was devised. en_US
dc.language.iso en en_US
dc.rights International Journal of Chemical Engineering and Applications (IJCEA) http://www.ijcea.org/papers/137-C028.pdf en_US
dc.subject Waste gas streams en_US
dc.subject Volatile organic compounds en_US
dc.subject Polydimethysiloxane en_US
dc.subject Gas liquid chromatography en_US
dc.title Temperature effect on volatile organic compounds – polydimethylsiloxane Interactions en_US
dc.type Article en_US

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