Crystalline Membranes

Primary Inventors: 

Michael Tsapatsis, Ph.D.


A modified seeded growth method was developed that allows the fabrication of zeolite MFI films that have straight 5.5Angstrom channels perpendicular to the membrane surface. The membranes show improved separation performance. For example, they have the highest permeance and selectivity reported up to now for xylene isomer separation.


Separation of hydrocarbon mixtures, membrane reactors


The membranes show highest flux and selectivity compared to those reported before. The membranes are potentially more resistant to cracking compared to those reported before.

Licensing Status: 
Available for Licensing
Patent Status: 

US Patent No. 7,357,836 Issued

UMA 03-11
For More Information: 

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