The novel highly permeable composite membranes with a thin selective layer made of poly(1-trimethylsilyl-1-propyne) (PTMSP) on polysulfone hollow fiber support were proposed for application in gas-liquid membrane contactor for ethylene/ethane separation. The effects of AgNO₃ concentration in aqueous absorbent and its velocity on the ethylene mass transfer coefficient were evaluated. High ethylene permeance (83 GPU) at ethylene recovery of 44% was achieved. Six months of membrane contactor operation revealed only 24% drop in the overall mass transfer coefficient. The contributions of membrane and liquid phase to the overall mass transfer resistance were estimated. The contributions were found to be comparable values.

提出了一种新型的高渗透性复合膜，该膜具有由聚（1-三甲基甲硅烷基-1-丙炔）（PTMSP）制成的薄选择层，该膜位于聚砜中空纤维载体上，可用于乙烯/乙烷分离的气液膜接触器。评估了水性吸收剂中AgNO _3的浓度及其速度对乙烯传质系数的影响。在乙烯回收率为44％时实现了很高的乙烯渗透率（83 GPU）。六个月的膜接触器操作表明，整体传质系数仅下降了24％。估计了膜和液相对整体传质阻力的贡献。发现这些贡献是可比较的值。