Supported zeolite membranes with controlled crystal width and preferred orientation grown on a growth enhancing layer

摘要: The present invention is directed toward a new zeolite membrane which exhibits columnar cross-sectional morphology and preferred crystallographic orientation comprising porous substrate having coated thereon mesoporous growth enhancing layer of crystals on said layer, wherein comprises nanocrystalline or colloidal sized zeolites, metal oxide, metal, zeolite, has interstices about 20 to 2000 Å, polycrystalline 99.9% have at least one point between adjacent that ≦20 Å. further process producing exhibiting orientation.