DYNAMIC SIMULATION FOR A MULTISTAGE COUNTERCURRENT EXTRACTION PROCESS  

作　　者：董文葆 阎和信 张辽生 

机构地区：[1]Dalian University of Technology,Dalian

出　　处：《Chinese Journal of Chemical Engineering》1989年第1期134-146,共13页中国化学工程学报（英文版）

摘　　要：A nonlinear dynamic cascade model with varying coefficients has becn derivcd for a sixteen-stage countercurrent extractor representing the first cycle of a Purex process. This actually is the result of further scrutinizing of the process mechanism and following-up of a simple linear dynamic cascade model formerly developed. A variable step length floating-point linearization algorithm for solving the nonlinear dynamic cascade model is proposed. The dynamic distribution of extracted materials in different stages and their variation with time are disclosed. Experimental data seem to conform quite satisfactorily with theoretical values obtained from the sensitive stage theory.A nonlinear dynamic cascade model with varying coefficients has becn derivcd for a sixteen-stage countercurrent extractor representing the first cycle of a Purex process. This actually is the result of further scrutinizing of the process mechanism and following-up of a simple linear dynamic cascade model formerly developed. A variable step length floating-point linearization algorithm for solving the nonlinear dynamic cascade model is proposed. The dynamic distribution of extracted materials in different stages and their variation with time are disclosed. Experimental data seem to conform quite satisfactorily with theoretical values obtained from the sensitive stage theory.

关 键 词：representing CASCADE CONFORM FLOATING DYNAMIC LINEARIZATION actually SETTLING disturbance founded 

分 类 号：TQ-55[化学工程]