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Theoretical and Experimental Mass Transfer Coefficients of Permeating Components in Supported Ionic Liquid Membranes
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SYSNO ASEP 0429231 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Theoretical and Experimental Mass Transfer Coefficients of Permeating Components in Supported Ionic Liquid Membranes Author(s) Izák, Pavel (UCHP-M) RID, ORCID, SAI
Kárászová, Magda (UCHP-M) RID, SAI
Šimčík, Miroslav (UCHP-M) RID, SAI, ORCID
Friess, K. (CZ)
Sedláková, Zuzana (UCHP-M) RID, ORCID, SAI
Růžička, Marek (UCHP-M) RID, ORCID, SAI
Šolcová, Olga (UCHP-M) RID, ORCID, SAISource Title Proceedings. - Bratislava : AXIMA Graphics Design & Printing Services, 2014 / Markoš J. - ISBN 978-80-89475-13-1 Pages s. 91 Number of pages 1 s. Publication form Print - P Action International Conference of Slovak Society of Chemical Engineering /41./ Event date 26.05.2014-30.05.2014 VEvent location Tatranské Matliare Country SK - Slovakia Event type EUR Language eng - English Country SK - Slovakia Keywords ionic liquid membrane ; transport properties ; trafer coefficients Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects TE01020080 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) GA14-12695S GA ČR - Czech Science Foundation (CSF) Institutional support UCHP-M - RVO:67985858 Annotation A complex study of the operation of supported ionic liquid membranes from practical point of view was made. It was shown that supported ionic liquids are selective for the binary mixture of CH4/CO2. Unfortunately, the literature reports certain pure ionic liquid data, which are mainly focused on CO2 and there is lack of data for CH4. The main problem seems to be the lack of data of the diffusion coefficients of gases in ionic liquids and, consequently, there are no correlations avialable between the transport properties and the molecular properties of the gas and of the IL. A simple model of transport of gases through the liquid membrane in permeation cell was suggested. It showed that in the used pressure range (150-350kPa), the mass transfer coefficient may be assumed constant with reasonable accuracy. The model could be applied in the scale-up of the process because it takes into account the decrease of the driving force that occurs along the membrane. This decrease is not really significant in the lab scale process, where the membrane area is small, but it may be important in larger scale processes, especially when the high enrichment of retentate is required. Generally, it can be concluded that the ionic liquid membranes are convenient for gas separation processes, but it is necessary to rely on the data connected to the supported liquid membranes themselves rather than on the data of pure (free) ionic liquids. Acknowledgements: This research was supported by the Czech Republic Foundation for grant No. 14-12695S. The financial support from the Technology Agency of the Czech Republic (project TE01020080) is greatly appreciated. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2015
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