期刊
CHEMICAL ENGINEERING & TECHNOLOGY
卷 42, 期 11, 页码 2292-2301出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201800147
关键词
Gas separation; Nanocomposite membranes; Olefin-paraffin separation; Polysulfone; Silica
The separations of ethylene/ethane and propylene/propane using polysulfone-silica nanocomposite membranes were studied. Silica nanoparticles were prepared via sol-gel method and the membranes by phase inversion. Characterization by Fourier transform spectroscopy and scanning electron microscopy indicated a good distribution of silica nanoparticles in the polymer matrix and also a good compatibility between the two phases. The performances of the prepared membranes in ethylene-ethane and propylene-propane separation were evaluated. The results showed the increments in gas permeability and selectivity by silica. Higher silica contents increased the solubility coefficient and reduced the diffusion coefficient of gases. The plasticization pressure of polysulfone was increased by incorporating the silica nanoparticles in polymer.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据