Absorption of volatile organic compounds into polydimethylsiloxane : phase equilibrium computation at infinite dilution

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dc.contributor.author Muzenda, Edison
dc.contributor.author Mateescu, Corina M.
dc.date.accessioned 2012-11-12T18:39:51Z
dc.date.available 2012-11-12T18:39:51Z
dc.date.issued 2011
dc.identifier.citation Muzenda, E. & Mateescu, C. M. 2011. Absorption of volatile organic compounds into polydimethylsiloxane: phase equilibrium computation at infinite dilution. World Academy of Science, Engineering and Technology, 50:751-755. en_US
dc.identifier.issn 2010-3778
dc.identifier.uri http://hdl.handle.net/10210/8183
dc.description.abstract Group contribution methods such as the UNIFAC are very useful to researchers and engineers involved in synthesis, feasibility studies, design and optimization of separation processes. They can be applied successfully to predict phase equilibrium and excess properties in the development of chemical and separation processes. The main focus of this work was to investigate the possibility of absorbing selected volatile organic compounds (VOCs) into polydimethylsiloxane (PDMS) using three selected UNIFAC group contribution methods. Absorption followed by subsequent stripping is the predominant available abatement technology of VOCs from flue gases prior to their release into the atmosphere. The original, modified and effective UNIFAC models were used in this work. The thirteen selected VOCs that have been considered in this research are: pentane, hexane, heptanes, trimethylamine, toluene, xylene, cyclohexane, butyl acetate, diethyl acetate, chloroform, acetone, ethyl methyl ketone and isobutyl methyl ketone. The computation was done for solute VOC concentration of 8.55x10-8 which is well in the infinite dilution region. The results obtained in this study compare very well with those published in literature obtained through both measurements and predictions. The phase equilibrium obtained in this study show that PDMS is a good absorbent for the removal of VOCs from contaminated air streams through physical absorption. en_US
dc.language.iso en en_US
dc.publisher World Academy of Science, Engineering and Technology en_US
dc.rights © 2011, World Academy of Science, Engineering and Technology. Available online at: www.waset.org en_US
dc.subject Volatile organic compounds en_US
dc.subject Polydimethylsiloxane en_US
dc.subject UNIFAC group contribution methods en_US
dc.title Absorption of volatile organic compounds into polydimethylsiloxane : phase equilibrium computation at infinite dilution en_US
dc.type Article en_US

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