Open Access Open Access  Restricted Access Subscription or Fee Access

Extractive Distillation study for the system Acetone - Chloroform – DMSO

G. Anthony Tushar, K. T.S. Prabhu, P. Balanjaneyulu, M. Brahmaiah, B. Nagarjun, C.V Nageswara Rao

Abstract


Acetone- chloroform is a maximum boiling azeotropic mixture which is frequently observed in the pharmaceutical and specialty chemicals industries. Conventional distillation does not yield the desired separation into pure components that is Acetone and Chloroform. Present work, focuses on separation of mixture by Extractive Distillation (ED) using PRO/II simulation software. Solvent used in separation of the mixture is DMSO (Di Methyl Sulfoxide) and thermodynamic model UNIFAC is selected for the simulation study. Parametric studies viz., reflux ratio, solvent flow rate, feed tray location; number of trays is made in the present simulation to obtain an enhanced separation. An increase of the number of trays from 22 to 30 in the ED column show an improvement in the product purity that is 99.97% as against 99.4% (mole). From the rigorous simulation study it is also understood that the heat loads in the reboiler and condenser are not changing much.

Keywords: Azeotrope, Extractive Distillation, DMSO, Parametric Studies, Simulation, PRO/II, UNIFAC.

Full Text:

PDF

References


Robert E Treybal, Mass – Transfer Operations, Third Ed., McGraw – Hill Book Company, Singapore., (1981).

Manish Pokhrel, Asante Daniel Owusu, and Jung Ho Cho, Separation of Acetone-chloroform maximum boiling azeotrope using Dimethyl sulfoxide, International Journal of Applied Engineering Research, 2016; 11(12); 7772-75p.

Figueirêdo, M. F., K. D. Brito, W. B. Ramos, L. G. S. Vasconcelos, and R. P. Brito, Optimization of the Design and Operation of Extractive Distillation Processes, Separation Science and Technology, 2015; 50; 2238–47p.

Eda Hosgor, Tugba Kucuk, Ilayda N. Oksal and Devrim B. Kaymak, Design and control of distillation processes for methanol–chloroform separation, Computers and Chemical Engineering, 2014; 67; 166–77p.

William L. Luyben, Comparison of extractive distillation and pressure-swing distillation for acetone/chloroform separation, Computers and Chemical Engineering, 2013; 50; 1-7p.

de Figueirêdo, M.F and B P. Guedes, Optimal design of extractive distillation columns-A systematic procedure using a process simulator, Chemical Engineering Research and Design, 2011; 89; 341–46p.

R D Ivonne, R.D A E Jhoany1, G Vincent and J Xavier, Heterogeneous Batch-Extractive Distillation of Minimum Boiling Azeotropic Mixtures, AIChE Journal, 2003; 49; 3074-83p.

Fredenslund, A., Jones, R.L., and Prausnitz, J.M., Group Contribution Estimation of Activity Coefficients in Nonideal Liquid Mixtures, AIChE J., 1975; 27; 1086-99p.

Smith, J.M, H. C. Van Ness and M. M. Abbott, Introduction to Chemical Engineering Thermodynamics, Seventh Ed., McGraw-Hill Companies, New Delhi., India., (2010).

Renon, H. and Prausnitz, J. M., Local Composition in Thermodynamic Excess Functions for Liquid Mixtures, AIChE J., 1968; 14; 135-44p..

Abrams, D. S. and Prausnitz, J. M., Statistical Thermodynamics of Mixtures: A New Expression for the Excess Gibbs Free Energy of Partly or Completely Miscible Systems, AIChE J., 1975; 21; 116-28p.

Horsley L. H., Azeotropic Data III, Advances in Chemistry Series No. 116, American Chemical Society, Washington, DC, (1973).

Seader, J.D and Ernest J. Henley, Separation Process Principles, Second Ed., John Wiley & Sons, Inc., USA, (2006).




DOI: https://doi.org/10.37628/jcst.v4i1.506

Refbacks

  • There are currently no refbacks.