采用两种截留分子量的卷式纳滤膜组件研究了工业木糖溶液的纳滤过程 ,并在此基础上应用了S -K模型 .模拟计算结果表明采用纳滤方法浓缩水解法工业木糖粗品溶液 ,通过四级串联方式可将质量分数为 4 %的木糖溶液浓缩至 2 0 % .该技术操作能耗低 ,木糖回收率高 ,表现出良好的发展前景 . Two types of nanofiltration membrane modules with molecular weight cutoff were used to study the nanofiltration process of industrial xylose solution, and the S-K model was applied to the model.The simulation results show that the industrial xylose crude product Solution, the 4% mass fraction of xylose solution can be concentrated to 20% through four stages in series, which has low energy consumption and high xylose recovery rate and shows good development prospects.