Diffusion Resistances and Contribution of Surface Diffusion in TAME and TAEE Production Using Amberlyst-15

Timur Dogu, Middle East Technical University
Ebru Aydin, Middle East Technical University
Nezahat Boz, Middle East Technical University
Kirali Murtezaoglu, Gazi University
Gulsen Dogu, Gazi University

Abstract

Effective diffusivities and adsorption equilibrium constants of methanol, ethanol and 2-methyl-2-butene (2M2B), in Amberlyst 15, were evaluated from batch adsorption experiments. Moment expressions derived for different models involving diffusion resistances in the macropores and within the gel-like micrograins were used for the evaluation of effective diffusion coefficients. Contribution of surface diffusion to diffusion flux within the macropores was found to be quite significant. Also, it was found that diffusion resistance in liquid filled macropores was much more significant than diffusion resistance within the gel-like micrograins of Amberlyst 15., for methanol, ethanol and 2M2B.

Recommended Citation

Dogu, Timur; Aydin, Ebru; Boz, Nezahat; Murtezaoglu, Kirali; and Dogu, Gulsen (2003) "Diffusion Resistances and Contribution of Surface Diffusion in TAME and TAEE Production Using Amberlyst-15," International Journal of Chemical Reactor Engineering: Vol. 1: A6.
Available at: http://www.bepress.com/ijcre/vol1/A6

 
 
 
 

ISSN: 1542-6580 ©1999-2009 The Berkeley Electronic Press™ All rights reserved.

To submit, subscribe, recommend this journal to your library, or sign up for email alerts, please visit: http://www.bepress.com/ijcre