中空纤维膜气体分离器的数学模型  

MATHEMATICAL MODEL FOR HOLLOW FIBER MEMBRANE GAS SEPARATOR

作　　者：贺高红[1] 徐仁贤[1] 朱葆琳[1] 

机构地区：[1]中国科学院大连化学物理研究所,大连116012

出　　处：《化工学报》1994年第2期162-167,共6页CIESC Journal

摘　　要：本文建立了中空纤维膜气体分离器的微分数学模型,对其数值解进行了实验验证,又将其简化的代数模型同文献上的模型进行了比较,指出了各种模型适宜的使用条件,并研究确定了气体膜分离过程中较适宜的丝内径、丝长度和操作压力的范围。A differential mathematical model for hollow fiber membrane gas separator including a gas pressure drop equation in hollow fibers was established and reduced to an algebraic one in order to simplify the calculations. The two models were tested experimentally and compared with the models in references. The models in this paper give better results than those in references when the pressure drop in hollow fiber can not be neglected. The models in this paper are very useful in design,calculation and development of hollow fiber membrane gas separator. The influences of inside diameter and length of hollow fiber and operating pressure on the separation process were studied. The optimum pressure of permeated gas in hydrogen and nitrogen separation process was about 0.4-1.0MPa.

关 键 词：中空纤维膜 气体分离器 数学模型 

分 类 号：TQ051.893[化学工程]