Recent progress in polycrystalline zeolite membrane research

- Research on polycrystalline zeolite membrane has rapidly progressed.
- Industrial applications of zeolite membranes are limited by high membrane costs.
- Promising results were reported on more cost effective zeolite membrane synthesis.
- Microstructure engineering has shown promise to improve zeolite membranes.
- Challenges persist to scale up some of the more critical zeolite membrane types.