Zeolite membranes – state of their development and perspective

Natural Gas Purification Technologies - Major Advances for CO2 Separation and Future Directions

“…Inorganic membranes (also known as ceramic membranes) are used for gas separation due to their superior thermal, mechanical and chemical stability, good erosion resistance, insensitivity to bacterial action and a long operational life (Caro, Noack et al 2000).…”

“…Comparison in terms of the advantages and limitations of inorganic membranes over polymeric membranes are given on Table 7 (Caro, Noack et al 2000). Table 7.…”

“…Table 7. Advantages and limitations of inorganic membranes over polymeric membranes (Caro, Noack et al 2000) Thus, the trend showed that the other alternative is the development of mixed matrix composite membranes which is a cost-effective membrane that combines homogeneously interpenetrating polymeric and inorganic particle matrices for high permeability and selectivity well above the upper-bound limit (Sridhar, Smitha et al 2007). …”

Synthesis of NaA zeolite membrane on a ceramic hollow fiber

“…The last decade has witnessed a significant progress on zeolite membranes [1][2][3]. MFI zeolite membrane showed promising performance on organic separations, e.g., butane isomers and xylene isomers [4][5][6][7][8][9][10], while X-type and Y-type zeolite membrane showed good performance on carbon dioxide separation [11] and 1,3-propanediol separation [12].…”

Preparation of high selectivity silicalite-1 membranes by two-step in situ hydrothermal synthesis

“…In 2001, Morigami group [10] reported the first largescale pervaporation plant made of 16 NaA membrane modules, which produced 530 L/h of solvents at less than 0.2 wt% of water from 90 wt% solvent at 120°C. Compared with NaA or FAU membrane, FMI (including ZSM-5 and silicalite-1) membranes are still prepared and used within different laboratories up to now, and this may be caused by the following reasons: one is the higher preparation cost compared with NaA or FAU membranes, and another reason is that MFI membranes should be calcined in order to remove the templates, and this often results in the formation of cracks, which decreases the separation performance of the as-synthesized membranes [11]. Furthermore, the low separation performance and low reproducibility may be the main reason to limit the preparation of MFI membranes in largescale [12].…”