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1 Polish Journal of Chemical Technology

1 2006

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

Nastaj J.F., Ambrożek B., Chybowska M.

Polish Journal of Chemical Technology

2006

Vol. 8, nr 1

61-66

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.