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Adsorption equilibrium and fixed-bed dynamics for toluene and water vapor mixture on Sorbonorit 4 activated carbon

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A novel method was used to describe adsorption equilibria of nonideal mixtures. The two-dimensional virial equation of state was used for the prediction and correlation of binary adsorption equilibrium of toluene and water vapor on activated carbon at 313.15 K. In this method contributions of single components were separated from those of mixed components. A predictive approach was proposed to calculate cross virial coefficients by using semi-empirical mixing rules. Experimental results were reported from a series of isothermal, fixed bed adsorption dynamics experiments involving mixtures of water and toluene. Breakthrough curves were measured for pure water, toluene, toluene - water mixture and from the mass balance adequate equilibrium points were determined. The experiments were conducted at constant relative humidity (phi(Win} = 0.5). A comparison of the computed results with experimental data for the system toluene - water - activated carbon at 313.15 K was done and fairly good agreement was stated.
Rocznik
Strony
61--66
Opis fizyczny
Bibliogr. 24 poz, tab., rys.
Twórcy
autor
autor
autor
  • Departament of Chemical Engineering and Environmental Protection Processes, Szczecin University of Technology, al. Piastów 42, 71-065 Szczecin, jonas@ps.pl
Bibliografia
  • (1) Do D. D.: Adsorption Analysis: Equilibria and Kinetics, Imperial College Press, London 1998.
  • (2) Myers A. L., Prausnitz J. M.: Thermodynamics of mixed-gas adsorption, AIChE Journal, 1965, 11, 121.
  • (3) Doong S., Yang R.: Adsorption of mixtures of water vapor and hydrocarbons by activated carbon beds: thermodynamic model for adsorption equilibrium and adsorber dynamics, AIChE Symp. Ser., 1987, 83, 259, 87.
  • (4) Myers A. L.: Activity Coefficients of Mixtures Adsorbed on Heterogenous Surfaces, 1983, AIChE Journal, 29, 691.
  • (5) Dubinin M., Serpinsky V.: Isotherm equation for water vapor adsorption by microporous carbonaceous adsorbents, Carbon, 1981, 19, 5, 402.
  • (6) Ripperger S., Germerdonk R.: Binary adsorption equilibria of organic compounds and water on active carbon, Ger. Chem. Eng. 1983, 6, 249.
  • (7) Talu O., Zwiebel I.: Multicomponent adsorption equilibria of nonideal mixtures, 1986, AIChE Journal, 32, 1263
  • (8) Talu O., Myers A. L.: Rigorous Thermodynamics Treatment of Gas Adsorption, 1988, AIChE Journal, 34, 1887 -1893.
  • (9) Myers A. L., Talu O., Lee J.: Activity Coefficients of Adsorbed Mixtures, 1995, Adsorption, 1, 103.
  • (10) Lodewyckx P., Vansant E.: Influence of humidity on adsorption capacity from the Wheeler-Jonas model for prediction of breakthrough times of water immiscible organic vapors on activated carbon bed, Am. Ind. Hyg. Assoc. J., 1999, 42, 612.
  • (11) Taqvi S. M.: Appel W.S., LeVan M.D., Coadsorption of organic compounds and water vapor on BPL activated carbon. 4. Methanol, ethanol, propanol, butanol, and modeling, Ind. Eng. Chem. Res., 1999, 38, 240.
  • (12) Okazaki H., Tamon H., Toei J.: Prediction of binary adsorption equilibria of solvent and water vapor on activated carbon, J. Chem. Eng. Japan, 1996, 11,209.
  • (13) Ambrożek B., Nastaj J.: Przewidywanie równowagi adsorpcji mieszaniny rozpuszczalników organicznych na węglu aktywnym, Inżynieria i Ochrona Środowiska, 2000, 3, 275.
  • (14) Nastaj J., Ambrożek B.: Binary adsorption capacity prediction of water and water immiscible organic compounds on activated carbon, 2001, Inżynieria Chemiczna i Procesowa, 22, 995.
  • (15) Linders M. J. G., van den Broeke L. J. P., Kapteijn F, Moulijn J. A.: Binary adsorption equilibrium of organics and water on activated carbon, 2001, 47, 1885.
  • (16) Zhou C., Hall F., Gasem K. A. M., Robinson R. L. jnr: Predicting gas adsorption using two-dimensional equations of state, 1994, Ind. Eng. Chem. Res., 33, 1280.
  • (17) Taqvi S. M., LeVan M. D.: Virial description of two-component adsorption on homogeneous and heterogeneous surfaces, 1997, Ind. Eng. Chem. Res., 36, 2197.
  • (18) Al-Muhtaseb S. A., Ritter J. A.: New Virial-Type Model for Predicting Single- and Multicomponent Isosteric Heats of Adsorption, 1998, Ind. Eng. Chem. Res., 37, 684.
  • (19) Appel W. S., LeVan M. D., Finn J. F.: Nonideal adsorption equilibria described by pure component isotherms and virial mixture coefficients, Ind. Eng. Chem. Res., 1998, 37, 4774.
  • (20) Ambrożek B.: Przewidywanie równowagi adsorpcji mieszaniny związku organicznego i pary wodnej na węglu aktywnym, Inżynieria i Aparatura Chemiczna, 2003, 4, 8.
  • (21) Tien C.: Adsorption Calculation and Modelling, Boston, Butterworth-Hainemann, 1994.
  • (22) Chiang Y. –C., Chiang P. –C., Chang E. -E.: Comprehensive approach to determining the physical properties of granular activated carbons, 1998, Chemisphere, 37, 237.
  • (23) Zumkeller H. -J., Bart H. -J.: Influence of residual loadings on mass transfer and efficiency in sorption cycles, 1997, Chem. Eng. Process., 36, 459.
  • (24) Yaws C. L.: Chemical Properties Handbook, McGraw-Hill Company, New York, 2001.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPS2-0037-0022
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