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Separace uhlovodíků a CO2 na zeolitických MFI membránách
Dung Cong, T. ; Fíla, V. ; Hrabánek, Pavel ; Cílová, Z. ; Zikánová, Arlette
MFI zeolite membranes were prepared on stainless steel and ceramic supports by using hydrothermal synthesis method. The synthesized zeolite layers were compact and composed of randomly oriented crystals. Single component gases such as He, N2, CO2, SF6, CH4, i-C4H10, n-C4H10 and SF6 were used to test membrane permeation and separation characteristics. The effects of temperature and pressure drop on the separation properties of the membranes were also investigated using Wicke-Kallenbach method. Separation factors measured for CO2/CH4 and butane isomer mixtures were in the range of 1.2 – 4.1 and 5 – 20, respectively, depending on the operating conditions of the experiments and particular membranes.
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