CAJ | 학술논문

利用不同离子液体制备离子液体“充填型”支撑液膜，将其用于混合芳烃中对二甲苯的蒸汽渗透膜分离实验，比较了不同离子液体、不同支撑底膜、原料中对二甲苯的含量、操作温度等因素对分离性能的影响。结果表明，在40℃温度下，[ Bmim][ BF4]填充PVDF膜形成的支撑液膜对对二甲苯体积分数为60%的混合芳烃渗透通量为59.5 g/（m2·h），分离因子达16.5；经过90 h的实验测定，支撑液膜分离性能稳定。离子液体支撑液膜的蒸汽渗透过程能够实现从混合芳烃中将对二甲苯分离。
이용불동리자액체제비리자액체“충전형”지탱액막，장기용우혼합방경중대이갑분적증기삼투막분리실험，비교료불동리자액체、불동지탱저막、원료중대이갑분적함량、조작온도등인소대분리성능적영향。결과표명，재40℃온도하，[ Bmim][ BF4]전충PVDF막형성적지탱액막대대이갑분체적분수위60%적혼합방경삼투통량위59.5 g/（m2·h），분리인자체16.5；경과90 h적실험측정，지탱액막분리성능은정。리자액체지탱액막적증기삼투과정능구실현종혼합방경중장대이갑분분리。
BTX aromatics mainly including paraxylene is separated with vapor permeation through suppor-ted liquid membranes using different ionic liquids. The effects of the different ionic liquids,the different supported membrane materials,concentration of paraxylene in feed and temperature on permeability and selectivity were studied respectively. The result shows that BTX aromatic( paraxylene volume fraction of 60% )can be selectively permeated through the membrane. The liquid membrane using[ Bmim][ BF4 ] and PVDF has separated the mixture at 40 ℃. The membrane permeation flux is 59 . 5 g/( m2 · h )and separation factor is 16. 5. And membrane separation performance is stable during 90 h measurements. Ion-ic liquid supported liquid membrane penetration of the steam process can be achieved from BTX aromatics of paraxylene separation.