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Date of Publication:2022-10-10

Journal:化学通报

Issue:1

Page Number:1-5

ISSN No.:0441-3776

Abstract:High-permeance Silicalite-1 zeolite membranes was prepared on the porous α-Al2O3 support by varying-temperature hydrothermal synthesis,zeolite membrane was characterized by means of XRD、SEM and Single-gas permeance measurement.XRD pattern showed that the membrane was Silicalite-1 zeolite membrane.SEM analysis indicated that few defects existed in the membrane and thickness of the membrane was about 13µm, Single-gas permeation results showed that the ideal separation factors were 3.51 for H2/N2 and 28.33 for H2/C3H8 at room temperature respectively. The permeability ratio of H2 was up to 1.46×10-6mol/(m2·s·Pa).XRD、SEM and single-gas permeation confirmed that the Silicalite-1 zeolite membrane as-synthesized on the porous α-Al2O3 support was high-selectivity and high-permeance silicalite-1 zeolite membrane.

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