A New Algorithm of Boundary-Driven Type Non-Equilibrium Molecular Dynamics for Simulating Membrane Permeation of Gas Mixtures
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- Furukawa Shin-ichi
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
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- Nitta Tomoshige
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
Bibliographic Information
- Other Title
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- A New Algorithm of Boundary-Driven Type Non-Equilibrium Molecular Dynamics for Simulating Membrane Permeation of Gas Mixtures(SC)
- New Algorithm of Boundary Driven Type Non Equilibrium Molecular Dynamics for Simulating Membrane Permeation of Gas Mixtures SC
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Abstract
A Boundary-Driven type Non-Equilibrium MD (BD-NEMD) technique combined with the μVT-MC and NpT-Gibbs MC methods has been developed to simulate membrane permeation of gas mixtures. By using the new technique, simulations were carried out on permeation of binary mixtures, which consist of two kinds of LJ fluids differing in the LJ energy parameter and the molar mass. Two important results were obtained; (1) the permselectivity is affected by two factors, the adsorption equilibrium selectivity and the difference in molecular diffusivity, and (2) it increases as the weakly adsorptive molecules diffuse more slowly.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 38 (4), 278-282, 2005
The Society of Chemical Engineers, Japan