Olefin Selective Ag-Exchanged X-Type Zeolite Membrane for Propylene/Propane and Ethylene/Ethane Separation | Zendy

Motomu Sakai | Zendy; Yasuhito Sasaki | Zendy; Taisuke Tomono | Zendy; Masahiro Seshimo | Zendy; Masahiko Matsukata | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Olefin Selective Ag-Exchanged X-Type Zeolite Membrane for Propylene/Propane and Ethylene/Ethane Separation

Author(s) -

Motomu Sakai,

Yasuhito Sasaki,

Taisuke Tomono,

Masahiro Seshimo,

Masahiko Matsukata

Publication year - 2019

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.8b20151

Subject(s) - permeance , propane , olefin fiber , selectivity , ethylene , membrane , zeolite , materials science , ion exchange , inorganic chemistry , ion , catalysis , organic chemistry , chemistry , polymer , composite material , biochemistry

Propylene/propane and ethylene/ethane separation was examined with Ag-exchanged X-type zeolite membrane (Ag-X membrane). The Na-X membrane was prepared on a porous tubular α-alumina support by a secondary growth method. The resulting Na-X membrane was ion-exchanged by using AgNO 3 aq. Olefin selectivities in both mixtures were markedly improved after the ion exchange from Na to Ag cation. The Ag-X membrane exhibited a maximum propylene selectivity of 55.4 with a permeance of 4.13 × 10 -8 mol m -2 s -1 Pa -1 at 353 K for a propylene/propane (50:50) mixture. This membrane also exhibited a maximum ethylene selectivity of 15.9 with a permeance of 9.04 × 10 -8 mol m -2 s -1 Pa -1 at 303 K for an ethylene/ethane (50:50) mixture. We consider that the strong interaction between olefin and Ag cation plays an important role for the appearance of such high selectivity of olefin.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research