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Measurement of adsorption and transport parameters of hydrocarbon isomers in MFI-membranes
2005 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Separation of mixtures of linear and branched alkanes is a very important process in the petroleum and petrochemical industries. The properties of zeolites such as molecular sieving, selective adsorption and differences in diffusion rates can be used for such separations. A very separation device would be a thin film of zeolite on a porous support, where the film would act as a membrane. Supported MFI membranes are of particular interest, since the pore size of the MFI material is of the same site as many important industrial molecules. The transport of hexane isomers – n-hexane and 2,2-dimethylbutane (DMB), linear and branched alkanes, through MFI membranes on porous ?- alumina discs was investigated in the present work. Single-component and mixture permeation of the two C6 alkanes was measured. The fluxes decreased as the amount of chain branching increased (nhexane > DMB) as expected and the single components fluxes were higher than the fluxes in the binary mixture. These results will be used for future modelling of zeolite membrane permeation.

Place, publisher, year, edition, pages
Keyword [en]
Physics Chemistry Maths, zeolites, separation, zeolite membrane permeation
Keyword [sv]
Fysik, Kemi, Matematik
URN: urn:nbn:se:ltu:diva-57108ISRN: LTU-EX--05/002--SELocal ID: dceb8961-c6a7-4926-aeeb-8e47ec250a3eOAI: diva2:1030495
Subject / course
Student thesis, at least 30 credits
Educational program
Chemical Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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