無機分子ふるい膜を展望する　　無機膜による炭化水素分離

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タイトル別名
  • State-of-the Art of Hydrocarbon Separation through Inorganic Membranes.
  • ムキ マク ニヨル タンカ スイソ ブンリ

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抄録

State-of-the art of hydrocarbon separation technology by inorganic membranes is reviewed. Targets for hydrocarbon separation are classified into five groups : H2/Lower hydrocarbons, alkane/alkene, straight chain hydrocarbons/branched hydrocarbons, aliphatic hydrocarbons/aromatic hydrocarbons, and aromatic hydrocarbon mixtures. Various types of microporous inorganic membranes, amorphous silica, zeolites and carbon membranes, have been under development. Some of them show very high permselectivities, indicating the promising prospects of inorganic membrane technology. While molecular sieving property has long been anticipated to appear on the basis of size recognition by micropores smaller than 1 nm, there have been a few reports with conclusive evidence on the separation by molecular sieving. On the other hand, the difference in adsorption properties into a membrane can lead to the appearance of permselectivity particularly at lower temperatures.

収録刊行物

  • 膜

    膜 23 (2), 55-61, 1998

    日本膜学会

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