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Dong Wenbao, Yan Hexin and Zhang Laosheng (Dalian Institute of Technology)
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董文葆,阎和信,张辽生
Abstract: A varying coefficient, nonlinear dynamic cascade model has been derived in this paper, thus, in fact, is the extension of a simple linear dynamic cascade model, obtained through process mechanism studies on a Purex process occurring in a sixteen stage extractor with a countercurrent of first recycling. A variable step width floating-point linearization algorithm for solving the nonlinear dynamic cascade model is hereby proposed. Dynamic distribution of extracted materials in different stages and its variation with time disclosed. Comparison at experimental values with theoretical values in the sensitive stage, gives rather satisfactory conformity.
摘要: 本文以Purex流程一个16级第一循环逆流萃取设备为对象,通过萃取过程机理分析,在建立了一种简单线性级联动态机理模型的基础上 推导出一种变系数非线性级联动态机理模型.提出了求解非线性级联动态机理模型的一种变步长浮点线性化数值计算方法和仿真程序.在一定稳态条件下,求得各级被萃取物质的动态分布及其随时间变化规律.把敏感级的理论计算与实验值进行了比较,获得了满意的结果.
Dong Wenbao, Yan Hexin and Zhang Laosheng (Dalian Institute of Technology). Dynamic Simulation for a Multistage CountercurrentExtraction Process[J]. .
董文葆,阎和信,张辽生. 多级逆流萃取过程的动态模拟 [J]. CIESC Journal.
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