General design algorithm based on pseudo-equilibrium concept for multistage multi-component liquid-liquid separation processes.
Takeshi Tsuboka,Takashi Katayama +1 more
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TL;DR: In this article, a general method for mathematical simulation of multicomponent equilibrium stage processes is presented, which consists of solving component material balance equations with a tridiagonal matrix algorithm and performing equilibrium calculation based on the "pseudoequilibrium" concept, instead of solving simultaneous equilibrium equations by some optimization method.
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Abstract: A new general method for mathematical simulation of multicomponent equilibrium stage processes is presented. The procedure consists of solving component material balance equations with a tridiagonal matrix algorithm and performing equilibrium calculation based on the "pseudoequilibrium" concept, instead of solving simultaneous equilibrium equations by some optimization method. The present method is simple, fast and numerically stable. The application of the method to multistage, multicomponent extraction problems is described. Moreover, the feasibility of the modified Wilson equation to extraction problems is shown.
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Citations
Simulation of an extraction column
Ephraim Kehat,B. Ghitis +1 more
TL;DR: An efficient program for the simulation of an extraction column that uses Newton's method combined with a search along the damping factor, and Gauss Elimination with limited normalization for the inversion of the Jacobian.
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Disjunctive optimization design models for complex liquid–liquid multistage extractors
TL;DR: In this paper, a new method for the optimal design of multicomponent liquid-liquid extraction processes using multistage countercurrent extractor systems is proposed, which determines the optimum number of equilibrium stages and flow rates needed to obtain a specified product separation and recovery, and accounts for the possibility of side feed streams and product extractions.
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Modeling and simulation of a sulfolane extraction process
TL;DR: In this article, the UNIFAC method was used for the computation of related thermodynamic properties and equilibrium states of a sulfolane extraction process and the results of simulations showed good agreement with actual plant operation data.
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A liquid-liquid extractor model based on UNIFAC
TL;DR: A steady state liquid-liquid extractor model using the UNIFAC group contribution method for phase equilibria has been developed, based on a very robust flash calculation routine and on a versatile package (UNIFAC) for the prediction of thermodynamic properties.
5
Extraction and Leaching
James R. Couper,W. Roy Penney,James R. Fair,Stanley M. Walas +3 more
- 01 Jan 2010
TL;DR: Extraction is a separation process for the removal of one or more components from a liquid using an immiscible solvent as mentioned in this paper, and when one of the original components is a solid, the process is called leaching.
5
References
•Book
Fundamentals and modeling of separation processes: absorption, distillation, evaporation, and extraction
Charles Donald Holland
- 01 Jan 1974
TL;DR: In this paper, the authors present a model for separation processes: absorption, distillation, evaporation, extraction, and extraction, which is based on the separation process model.
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Computation of multistage separation processes
TL;DR: The calculation procedures to be discussed in subsequent sections of this book offer a means of solution to a wide variety of sparation problems, however, they require in their utilization a thorough understanding of the formulation or setting up of the separation problems as mentioned in this paper.
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