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Adsorption of liquid-phase alkane mixtures in silicalite: simulations and experiment
Shaji Chempath1, Joeri F M Denayer, Kurt M A De Meyer
1Department of Chemical Engineering and Center for Catalysis and Surface Science, Northwestern University, Evanston, Illinois 60208, USA.
Abstract:
A combination of experimental and computational studies of adsorption from liquid-phase mixtures of linear alkanes in the zeolite silicalite is presented here. Configurational biased grand canonical Monte Carlo simulations combined with identity-swap moves are used to equilibrate the simulations in reasonable times. Interesting trends observed in experiments have been captured quantitatively by simulations. A siting analysis of the simulation data reveals that, during adsorption from a liquid mixture, shorter alkanes prefer the zigzag channels and longer alkanes concentrate in the straight channels of silicalite.
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