Measurement of Gas Permeation Though Carbonized Membranes and Determination of Mass Transfer Mechanisms

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Pakdaman, Ehsan | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 40080 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Ghotbi, Cyrus; Taghikhani, Vahid; Mahdyarfar, Mohammad
Abstract:
In this project, using experimental results for permeation of gases H2, He, N2, and CO on a microporous membrane (the applied sample was a ceramic membrane) and modified equations, pore diameter, tortuosity, and porosity were determined for this type of membrane. Furthermore, pore diameter, critical volume, and characteristic energy of a carbon molecular sieve membrane were calculated using experimental data for CO2 adsorption on this type of membrane. Diffusivities of CO2, N2, and Ar were also calculated by means of the uptake, time lag/adsorption, and permeability/adsorption tests on carbon molecular sieve membranes utilizing experimental data obtained for this type of membranes and the mentioned gases at various temperatures, the presented equations in the literature and the modifications made to these equations; in the end, a comparison was made between these methods.
Keywords:
Ceramic Membrane ; Adsorption ; Adsorbed Amount ; Diffusion Coefficient ; Microporouse Membrane ; Carbon Molecular Sieve Memberane ; Time Lag-Permeation

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