摘要
High-permeance ZSM-5 zeolite membrane was prepared on porous tubular α-Al2O3 support by varying-temperature hydrothermal synthesis. XRD patterns show that the membrane consists of ZSM-5 zeolite crystals. SEM analysis indicates that few defects exist in the membrane and the thickness of the membrane is about 9 μm. The hydrogen permeance through the membrane is about 2.4×10-6mol/(m2 · s · Pa), and the separation factor for n-C4H10/i-C4H10 mixture (volume ratio 1 : 1) is 40, which indicates that it has a high quality with high permeance and selectivity. Repeated nucleation and re-growth of the crystals on the support result in the dense membrane formation.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 1859 |
| 页数 | 1 |
| 期刊 | Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities |
| 卷 | 23 |
| 期 | 10 |
| 出版状态 | 已出版 - 10月 2002 |
| 已对外发布 | 是 |
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