抄録
We investigated the adsorption properties of propylene and propane on an olefin-selective Ag-X membrane and discussed the contribution of adsorption selectivity to propylene/propane separation performance through this membrane. The isotherms of propylene and propane on Ag-X membranes were measured in unary systems at 313 K. The amount of propylene adsorbed on the Ag-X membrane at a lower pressure increased remarkably compared with that on the Na-X membrane. Such a change of adsorption property could induce excellent separation property for the Ag-X membrane. We compared the adsorption properties in a binary system calculated based on the Markham-Benton approach with the results of a permeation test. The molar fractions of propylene in the adsorbed phase in the binary system provided good agreement with propylene purity on the permeation side of the Ag-X membrane. These results clearly show that permeation selectivity of the Ag-X membrane for the propylene/propane mixture is mainly governed by adsorption selectivity.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 24086-24092 |
| ページ数 | 7 |
| ジャーナル | ACS Applied Materials and Interfaces |
| 巻 | 12 |
| 号 | 21 |
| DOI | |
| 出版ステータス | Published - 2020 5月 27 |
ASJC Scopus subject areas
- 材料科学（全般）