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首页> 外文期刊>Journal of Applied Polymer Science >Properties of rubbery polymers for the recovery of hydrogen sulfide from gasification gases
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Properties of rubbery polymers for the recovery of hydrogen sulfide from gasification gases

机译：橡胶状聚合物从气化气体中回收硫化氢的性能

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Polydimethyl siloxane (PDMS) and two polyether-polyamide copolymers (trade name Pebax) were evaluated for their ability to transport and separate gasification gases. Specifically, the permeabilities of hydrogen, carbon monoxide, carbon dioxide, and hydrogen sulfide were evaluated at temperatures up to 200degreesC. The permeabilities of all gases were approximately ten times faster through the PDMS than the Pebax materials. The permeabilities through all materials at all temperatures evaluated were H2S > CO2 > H-2 > CO. As the temperature increased, the permeabilities of all gases increased through the Pebax. Conversely, for PDMS, hydrogen and carbon monoxide permeabilites increased with temperature while those of H2S and CO2 decreased. The H2S/H-2 selectivities ranges from 1.2 (PDMS at 200degreesC) to 10.3 (Pebax 2533 at 35degreesC). The activation energies for permeation of these polymer/penetrant pairs are reported. (C) 2002 Wiley Periodicals, Inc. [References: 16]
机译：评价了聚二甲基硅氧烷（PDMS）和两种聚醚-聚酰胺共聚物（商品名Pebax）的运输和分离气化气体的能力。具体地，在高达200℃的温度下评估氢，一氧化碳，二氧化碳和硫化氢的渗透性。通过PDMS，所有气体的渗透率比Pebax材料快约十倍。在所有评估温度下，所有材料的渗透率均为H2S> CO2> H-2> CO。随着温度升高，所有气体的渗透率都通过Pebax升高。相反，对于PDMS，氢和一氧化碳的透化石随温度升高而升高，而H2S和CO2的降低。 H2S / H-2的选择性范围为1.2（200摄氏度下的PDMS）至10.3（35摄氏度下的Pebax 2533）。报告了渗透这些聚合物/渗透剂对的活化能。 （C）2002 Wiley Periodicals，Inc. [参考：16]

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