Thin zeolite membrane, its preparation and its use in separation

   
   

Described is a supported zeolite membrane that consists of a zeolite/substrate composite layer that exhibits, in the n-butane/isobutane separation, a permeance of n-butane of at least 6.10.sup.-7 mol/m.sup.2.s.Pa and a selectivity of at least 250 at the temperature of 180.degree. C. Said zeolite/substrate composite layer is thin and continuous. This membrane is used in processes for gas separation, vapor separation and liquid separation.

Описана поддержанная мембрана цеолита состоит слоя zeolite/substrate составного exhibits, в разъединении n-butane/isobutane, permeance н-butana по крайней мере 6.10.sup.-7 mol/m.sup.2.s.Pa и селективность по крайней мере 250 на температуре 180.degree. Ч. Сказанный слой zeolite/substrate составной тонок и непрерывн. Эта мембрана использована в процессах для разъединения газа, разъединения пара и разъединения жидкости.

 
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