SAPO‐34 hollow fiber zeolite membranes are successfully synthesized on α‐Al₂O₃ hollow fiber ceramic substrates by secondary growth method, and used to separate H₂ from a binary mixture (H₂, C₃H₈) or ternary mixture (H₂, C₃H₈, and C₃H₆) under a wide temperature range (25–600°C) with the aim of using them for propane dehydrogenation (PDH) reactions at high temperature. The results show excellent performance for H₂/C₃H₈ and H₂/ C₃H₈ & C₃H₆ separation, with high H₂ permeance of 3.1 × 10⁻⁷ mol/m²/s/Pa and H₂/C₃H₈ selectivity of 41 at 600°C. Additionally, the membrane shows stable performance for 140 hr of H₂/C₃H₈ separation test at 600°C. The high performance of this membrane is mainly attributed to the thin (∼2 μm) zeolite layer and asymmetric‐wall of the hollow fiber support. So far, this membrane offers the highest hydrogen permeation and selectivity for H₂/C₃H₈ separation at high temperature (600°C) compared to those reported in literature.

中文翻译：

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高H2渗透性SAPO-34中空纤维膜，适用于高温丙烷脱氢

SAPO-34中空纤维沸石膜是在成功地合成的α-Al ₂ ö _3个的中空纤维通过二次生长法陶瓷基板，和用于分离水平₂从二元混合物（H ₂，C ₃ H ^ ₈）或三元混合物（H ₂，C ₃ H ₈和C ₃ H ₆）在较宽的温度范围（25–600°C）下使用，目的是将它们用于高温下的丙烷脱氢（PDH）反应。结果表明，H ₂ / C ₃ H ₈和H ₂ / C _3的性能优异。H ₈和C ₃ H ₆分离，在600°C下H _2的渗透率为3.1×10 ^-7 mol / m ² / s / Pa，H ₂ / C ₃ H _8的选择性为41。另外，该膜在600°C的H ₂ / C ₃ H ₈分离测试中显示了140小时的稳定性能。这种膜的高性能主要归因于薄的（〜2μm）沸石层和中空纤维载体的不对称壁。到目前为止，该膜对H ₂ / C ₃ H _8的氢渗透性和选择性最高 与文献报道相比，高温（600°C）下的分离效果更好。