Adsorption and diffusion of alkanes in mordenite

Yu Ping Chen, Ling Hong Lü, Qing Shao, Liang Liang Huang, Xiao Hua Lu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Grand Canonical Monte Carlo(GCMC) and molecular dynamics (MD) techniques were employed to simulate the adsorption and diffusion properties in mordenite (MOR) zeolites. By the GCMC, the adsorption of methane, ethane, propane, and butane in MOR zeolites at 300 K.330 K was studied. The results indicated that the adsorbed amounts decreased with increasing temperature and the order of saturated adsorption amounts was methane>ethane>propane>butane. Adsorption diagrams of binary alkanes mixtures were simulated by MD and calculated by ideal adsorption solution theory (IAST). The calculated results were in agreement with the simulated results. Finally, the diffusion properties of ethane and propane in MOR zeolites were studied by molecular dynamics. The results showed that the diffusion coefficients were different in different directions and the biggest diffusion coefficients in z direction.

Original languageEnglish
Pages (from-to)905-910
Number of pages6
JournalWuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
Volume23
Issue number6
StatePublished - 2007

Keywords

  • Adsorption
  • Alkanes
  • Diffusion
  • Molecular simulation
  • Zeolite

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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