本文選題：ZIF-/AlO膜　切入點：改性　出處：《現代化工》2017年05期 　論文類型：期刊論文

【摘要】：利用NaBH_4將合成的ZIF-90晶種改性為ZIF-91,并用二次生長法在Al_2O_3支撐體上制備ZIF-90膜和ZIF-91膜。利用XRD、TGA、FT-IR,SEM、BET對合成的粉末及膜進行表征。以N2/n-C_5H_(12)模擬油氣體系,將制備的ZIF-90/Al_2O_3膜和ZIF-91/Al_2O_3膜用于油氣回收實驗。考察了不同操作壓力及溫度下,2種膜在混合氣中的分離性能,結果表明,當操作壓力為0.06 MPa、溫度為25℃時,ZIF-90膜和ZIF-91膜對N2/n-C_5H_(12)的分離因子分別為2.82、3.98,滲透性分別為5.02×10~(-8)、2.35×10~(-8)mol/m~2·s·Pa,說明改性在一定程度上提高了膜的分離性能。
[Abstract]:The synthesized ZIF-90 seeds were modified into ZIF-91 by NaBH_4, and ZIF-90 and ZIF-91 films were prepared on Al_2O_3 supports by secondary growth method. The synthesized powders and membranes were characterized by XRDX TGAFT-IRT-SEMBET. The oil and gas systems were simulated by N _ 2 / n-C _ 5H _ 2O _ 12). The ZIF-90/Al_2O_3 and ZIF-91/Al_2O_3 membranes were prepared for oil and gas recovery experiments. The separation properties of the two membranes in mixed gas at different operating pressures and temperatures were investigated. When the operating pressure was 0.06 MPA and the temperature was 25 鈩，

本文編號：1648433