Computer simulations multicomponent distillation

Ranzi E, Rovaglio M, Faravelli T, Biardi G. Role of energy balances in dynamic simulation of multicomponent distillation columns. Computers Chem Eng 1988 ... 

The author strongly recommends that before this algorithm is used for computer control of a multicomponent column, it is first thoroughly tested against the results of a rigorous computer simulation for the column considered. Alternative procedures for extending the Jafarey et al. algorithm for multicomponent distillation are discussed elsewhere (62). 

Taylor, R., Powers, M. F., Lao, M., and Arehole, A., The Development of A Nonequilibrium Model for Computer Simulation of Multicomponent Distillation and Absorpton Operations, The Institution of Chemical Engineers Symposium Series No. 104, Distillation and Absorption 1987, B321-B329 (1987). 

Chapter 6 Appendix. Computer Simulations for Multicomponent Column Distillation... 

For single separation duty, Al-Tuwaim and Luyben (1991) proposed a shortcut method to design and operate multicomponent batch distillation columns. Their method, however, required a great number of simulations, which must be computationally very expensive, before they could arrive at an optimum design and find an optimum reflux ratio. Further details are in Chapter 7. 

A rigorous fractionation tower program has been developed with several features that broaden its applicability far beyond the capabilities of existing commercially available distillation tower simulation programs. In addition to the usual features of most modern multicomponent fractionation programs, the individual component material balances and the enthalpy balance written for each tray have been modified so that the resulting computer program is able to simulate ... 

The calculation of batch distUlations of multicomponent mixtures is particularly difficult. Rose [251b] developed a computer programme which simulates the dynamic behaviour of discontinuous distillation processes. 

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