具有轴向混合的液液传质分离过程的数学模型及计算方法  

MODELLING AND PARAMETER EVALUATION OF LIQUID-LIQUID SEPARATION PROCESSES WITH AXIAL MIXING

作　　者：雷夏[1] 钱宇[1] 邱学青 

机构地区：[1]清华大学化学工程系

出　　处：《石油学报（石油加工）》1989年第3期71-81,共11页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：本课题得到国家自然科学基金的资助

摘　　要：本文将扩散模型与多级返流模型用于描述液液两相逆流传质分离过程.采用两相稳态浓度剖面法或传递组分动态响应法拟合求取模型参数.计算方法可分别采用三参数方法或单参数法(理想浓度剖面方法).两种模型和不同的模型参数估值方法可适用于不同的过程特点及需要.对模型参数估值方法的稳定性进行了分析和讨论.Both dispersion and back-flow models were adopted in this work to describe countercurrent liquid-liquid separation processes with axial mixing.Parameters in models were estimated from either steady state solute concentration profiles along the columns or dynamic solute concentration response of raffinate.Com- putation algorithm can be multi-variable simulation(the method of simul- taneous determination of consistent values of mass transfer and axial mixing parameters)or mono-variable simulation(the method of variable substitution with ideal concentration profiles).Two kinds of model and different parameter evaluation methods can be applied for different processes or circumstances.The reliability of the parameter estimation was tested with satisfaction.

关 键 词：液液传质分离 数学模型 计算 

分 类 号：TQ021.4[化学工程]