Xu L, Sahimi M, Tsotsis TT. Nonequilibrium molecular dynamics simulations of transport and separation of gas mixtures in nanoporous materials.
PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 2000;
62:6942-6948. [PMID:
11102049 DOI:
10.1103/physreve.62.6942]
[Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2000] [Indexed: 05/23/2023]
Abstract
The nonequilibrium molecular dynamics simulations of transport and separation of a binary gas mixture through a porous membrane with interconnected pores of distributed sizes are reported. The membrane is modeled by a three-dimensional disordered molecular network of interconnected pores consisting of tens of thousands of atoms, based on a Voronoi tessellation of space. Results are presented for transport and adsorption of the gases, including the existence of an optimal pore structure for maximum separation of the gases.
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