Modelling of fractionation in a molecular evaporator with divided condenser

Chemical Engineering and Processing: Process Intensification

Volumn 39, Issue 3, 2000, Pages 191-199

  Cvengroš, Ján ^a   Micov, Miroslav ^a   Lutišan, Juraj ^a  

^a SLOVAK UNIVERSITY OF TECHNOLOGY   (Slovakia)

Author keywords

Divided condenser; Fractionation; Liquid film; Molecular evaporator

Indexed keywords

BINARY MIXTURES; COMPOSITION EFFECTS; CONDENSATION; CONDENSERS (LIQUEFIERS); DISTILLATION; EVAPORATORS; FILMS; FLOW OF FLUIDS; HEAT TRANSFER; LIQUIDS; MASS TRANSFER; MATHEMATICAL MODELS;

DIVIDED CONDENSER; LIQUID FILM; MOLECULAR EVAPORATOR;

FRACTIONATION;

CONDENSER; EVAPORATOR; LIQUID FILM; MODELING;

EID: 0034059008     PISSN: 02552701     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0255-2701(99)00090-2     Document Type: Article

References (23)

1. Dieter K. Leistungsverhalten den Duennschichtverdampfern, II. Stoffaustauschzahlen beim Destillieren. Chem.-Zeitung. 94:1970;445.
2. Cvengroš J., Tkáč A. Continuous processes in wiped films. 2. Distilling capacity and separating efficiency in a molecular evaporator with a convex evaporating surface. Ind. Eng. Chem. Process Des. Dev. 17:1978;246.
3. Watt P.R. Molecular Stills. 1963;34 Chapman and Hall, London.
4. Carter A.L., Kraybill R.R. Low pressure evaporation. Chem. Eng. Progr. 62:1966;99.
5. GIG Company Prospectus, A-4800 Attnang-Puchheim, 1997.
6. Ruckenstein E., Hassink W., Ganrisankar S.V. The combinated effect of diffusion and evaporation on the molecular distillation of ideal binary liquid mixtures. Sep. Sci. Technol. 18:1983;523.
7. Bhandarkar M., Ferron J.R. Transport processes in thin liquid films during high-vacuum distillation. Ind. Eng. Chem. Res. 27:1988;1016.
8. Maa J.R., Tsay S.Y. Separation efficiency of the molecular distillation. J. Vac. Sci. Technol. 10:1973;472.
9. Bose A., Palmer H.J. Influence of heat and mass transfer resistances on the separation efficiency in molecular distillations. Ind. Eng. Chem. Fundam. 23:1984;459.
10. Kawala Z., Stephan K. Evaporation rate and separation factor of molecular distillation in a falling film apparatus. Chem. Eng. Technol. 12:1989;406.
11. Toei R., Okazaki M., Asaeda M. Some considerations of mass transfer under vacuum. J. Chem. Eng. Jpn. 4:1971;76.
12. Lutišan J., Cvengroš J. Mean free path of molecules on molecular distillation. Chem. Eng. J. 56:1995;39.
13. Micov M., Lutišan J., Cvengroš J. Balance equations for molecular distillation. Sep. Sci. Technol. 32:1997;3051.
14. Lutišan J., Micov M., Cvengroš J. The influence of entrainment separator on the process of molecular distillation. Sep. Sci. Technol. 33:1998;83.
15. Badin V., Cvengroš J. Model of temperature profiles during condensation in a film in a molecular evaporator. Chem. Eng. J. 49:1992;177.
16. Z. Kawala, Advances in Short-Path High-vacuum Distillation, Scientific Paper No. 63, Institiute of Chemical Engineering, TU Wroclaw, 1991.
17. Tkáč A., Cvengroš J. Continuous processes in wiped films. 1. Multistage molecular distillation in an arrangement with a single convex-shaped evaporator body. Ind. Eng. Chem. Process Des. Dev. 17:1978;242.
18. Perry E.S., Weber W.H. Vapor pressures of phlegmatic liquids. J. Am. Chem. Soc. 71:1949;3726.
19. Bretsznajder S. Wlasnosci gazow i czieczy, Wyd. 1965;Naukowo-Techniczne, Warszawa.
20. Bried E.M., Kidder H.F., Murphy C.M., Zisman W.A. Synthetic lubricant fluids from branched-chain diesters. Ind. Eng. Chem. 39:1947;484.
21. Reddy K.A., Doraiswamy L.K. Estimating liquid diffusivity. Ind. Eng. Chem. Fundam. 6:1967;77.
22. Vignes A. Diffusion in binary solutions. Ind. Eng. Chem. Fundam. 5:1966;189.
23. Lutišan J., Cvengroš J. Effect of inert gas pressure on the molecular distillation process. Sep. Sci. Technol. 30:1995;3375.