Alomair Abdulaziz A, Alqaheem Yousef
Petroleum Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait.
Membranes (Basel). 2021 Feb 25;11(3):160. doi: 10.3390/membranes11030160.
Post-treated mordenite membranes were prepared using sucrose (CHO) as a carbon precursor to block any pinholes and defects in the zeolite layer. The pervaporation (PV) process was used to separate ethanol from the water. The effects of the sucrose concentration and the pyrolysis temperature (650-850 °C) were investigated, and the resulting high separation performance compared to those post/pre-treated membranes was reported in the literature. In this study, mordenite carbon membranes yielded a water/ethanol separation factor of 990.37 at a water flux of 9.10 g/mh. The influence of the operating temperature on the performance of the membrane also was considered. It was concluded that the selective adsorption of water through zeolite pores was achieved. The entire preparation procedure was achieved using a rapid, low-cost preparation process.
使用蔗糖（CHO）作为碳前驱体来制备后处理丝光沸石膜，以堵塞沸石层中的任何针孔和缺陷。采用渗透汽化（PV）工艺从水中分离乙醇。研究了蔗糖浓度和热解温度（650 - 850°C）的影响，并且文献报道了与那些后处理/预处理膜相比所得到的高分离性能。在本研究中，丝光沸石碳膜在水通量为9.10 g/mh时产生的水/乙醇分离因子为990.37。还考虑了操作温度对膜性能的影响。得出的结论是通过沸石孔实现了水的选择性吸附。整个制备过程采用快速、低成本的制备工艺完成。
