气体膜分离数学模型建立及软件开发

气体膜分离是气体分离领域的新型分离技术,气体膜分离过程的设计数学模型建立及通用设计软件开发是工业应用的重要环节。考虑了原料气气质特点、丝内压降和浓差极化等影响建立气体中空纤维膜分离微分数学模型用于多组分分离的设计和较核计算,运用LabVIEW软件开发了气体膜分离计算软件。运行结果与文献中实验结果近似,可以方便准确地设计各种中空纤维式气体膜分离的校核,为气体膜分离的室内试验提供参考,为工业化应用奠定基础。

Model building and software development for gas membrane separation

Seperation of gas using polymeric membranes has become an important unit operation.Mathematical modeling of this process has attracted considerable attention in the past.A differential mathematical model for hollow fiber membrane gas separator was estab- lished and used for design and check calculation of muhicomponent gas separation.The influences of the characteristics of feed gas, pressure drop within the hollow fibers and concentration polarization were taken into consideration.We developed a computing software for gas membrane separation with LabVIEW.The results showed that our model could provide more accurate characterizations of mixed gas permeance of hollow membranes than other estimation methods.And this software was convenience for design and check calculation of muhicomponent gas separation with hollow fiber membrane module.The research results in this paper can provide the reference to la- boratory test on gas membrane separation and foundation for the application of gas membrane separation technique to industrialization.