Polyethylene with radiation-grafted sulfonated polystyrene membranes for butane and butenes separationстатья
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Дата последнего поиска статьи во внешних источниках: 21 октября 2020 г.
Аннотация:tThe possibility of paraffins and C4 olefins mixture separation on membranes made ofpolyethylene with radiation-grafted sulfonated polystyrene is shown. The selective sepa-ration is achieved due to the butenes and isobutene facilitated transfer in the form of a-complex with a proton. Moreover, despite the significantly larger cross-sectional size,obstructing the transfer, isobutene molecules are also transferred much faster than butane,and the separation coefficient reaches 3.8. An unusual fact was discovered of separationselectivity and permeability increase with the separated gases flow humidity rise.