SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (9): 2267-2284.DOI: 10.1016/j.cjche.2019.12.011

• Separation Science and Engineering • 上一篇    下一篇

The effect of ZIF-90 particle in Pebax/Psf composite membrane on the transport properties of CO2, CH4 and N2 gases by Molecular Dynamics Simulation method

Ali Hatami1, Iman Salahshoori1, Niloufar Rashidi1, Danial Nasirian2   

  1. 1 Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;
    2 Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, Isfahan, Iran
  • 收稿日期:2019-10-21 修回日期:2019-11-30 出版日期:2020-09-28 发布日期:2020-10-21
  • 通讯作者: Iman Salahshoori

The effect of ZIF-90 particle in Pebax/Psf composite membrane on the transport properties of CO2, CH4 and N2 gases by Molecular Dynamics Simulation method

Ali Hatami1, Iman Salahshoori1, Niloufar Rashidi1, Danial Nasirian2   

  1. 1 Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;
    2 Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, Isfahan, Iran
  • Received:2019-10-21 Revised:2019-11-30 Online:2020-09-28 Published:2020-10-21
  • Contact: Iman Salahshoori

摘要: Nowadays, mixed matrix membranes (MMMs) have considered by many researchers to overcome the problems of polymeric membranes. In addition, molecular dynamics (MD) and Monte Carlo (MC) simulation Methods are suitable tools for studying transport properties and morphology in MMMs. For this purpose, in this study using material studio 2017 (MS) software, the transport properties of CO2, CH4 and N2 in Pebax, Psf neat Pebax/Psf composite and Pebax/Psf composite filled with ZIF-90 particles have been investigated. By adding Psf to Pebax matrix, the selectivity of CO2/CH4 and CO2/N2 gases has significantly increased. In addition, adding ZIF-90 particles to the Pebax/Psf composite increased the permeability of CO2, CH4 and N2 compared to neat and composite membranes. The morphological properties of the membranes, such as the fractional free volume (FFV), radial distribution function (RDF), glass transition temperature (TG), X-ray diffraction (XRD) and equilibrium density have calculated and acceptable results have obtained.

关键词: Separation, Mixed Matrix Membranes, Molecular Dynamics, Monte Carlo, Pebax 1656/Psf, ZIF-90

Abstract: Nowadays, mixed matrix membranes (MMMs) have considered by many researchers to overcome the problems of polymeric membranes. In addition, molecular dynamics (MD) and Monte Carlo (MC) simulation Methods are suitable tools for studying transport properties and morphology in MMMs. For this purpose, in this study using material studio 2017 (MS) software, the transport properties of CO2, CH4 and N2 in Pebax, Psf neat Pebax/Psf composite and Pebax/Psf composite filled with ZIF-90 particles have been investigated. By adding Psf to Pebax matrix, the selectivity of CO2/CH4 and CO2/N2 gases has significantly increased. In addition, adding ZIF-90 particles to the Pebax/Psf composite increased the permeability of CO2, CH4 and N2 compared to neat and composite membranes. The morphological properties of the membranes, such as the fractional free volume (FFV), radial distribution function (RDF), glass transition temperature (TG), X-ray diffraction (XRD) and equilibrium density have calculated and acceptable results have obtained.

Key words: Separation, Mixed Matrix Membranes, Molecular Dynamics, Monte Carlo, Pebax 1656/Psf, ZIF-90