Wolfram Library Archive

All Collections Articles Books Conference Proceedings
Courseware Demos MathSource Technical Notes
Title Downloads

Dynamics of a five stages extraction cascade with solvent recycle

Housam Binous
Organization: KFUPM
Department: Chemical Engineering
URL: http://sites.google.com/site/homepageofdrhousambinous/
Revision date


Stagewise operation with two different recycle types are considered. The five stages extraction cascade is solved using Mathematica. A tank holding the solvent is connected to the extraction cascade. This solvent container is either a perfectly mixed tank or a plug flow tube. This problem with a perfectly mixed tank was solved analytically by Ugo Lelli (Annali di Chimica, 56, 1966, pages 113-125). In addition to solving this problem numerically with Mathematica, we extend Lelli's work to the case of a plug flow container. Different values of the solvent container volume are tested (parameter h in the program). We also vary the equilibrium coefficient (parameter lamda in the notebook named lelli2). For very large values of h, we get the usual cascade without recycle problem. For small values of h and large times, we get solvent saturation.

*Engineering > Chemical Engineering
*Science > Chemistry

Liquid-liquid extraction with recycle, equilibrium staged operations, chemical, engineering dynamics
Downloads Download Wolfram CDF Player

lelli2.nb (134.9 KB) - Mathematica Notebook