抄録
A study was carried out on the removal of water in ethanol-water mixtures containing maltose or glucose by pervaporation using polyimide hollow fiber membrane under various conditions for the purpose of saccharides crystallization. The membrane separation performance (permeation flux and separation factor) were influenced by operation conditions (operation pressure, temperature, flow rate, concentration of ethanol-water solution) and the concentration of maltose or glucose in the ethanol-water solution. The membrane separation performance lowered with increasing the glucose or maltose concentration in feed. The lowering of separation performance was closely related to the increase in viscosity of the feed liquid, caused by incerasing glucose or maltose concentration.
