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首页> 外文期刊>Separation and Purification Technology >Polyethylene glycol/polyurethane blend membranes for gasoline desulphurization by pervaporation technique
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Polyethylene glycol/polyurethane blend membranes for gasoline desulphurization by pervaporation technique

机译：渗透蒸发技术用于汽油脱硫的聚乙二醇/聚氨酯共混膜

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摘要

PEG/PU blend membranes were effectively used for FCC gasoline desulphurization by pervaporation.Membrane characterization was conducted by FTIR analysis and X-ray diffraction studies.With the FCC gasoline feed,the pervaporation and desulphurization performance of the membranes under various conditions were investigated.Higher sulphur enrichment factor(4.03)and permeation flux(2.5 kg/(m2 h))compared with the literature data on the PV desulphurization were obtained for PEG/PU blend membranes,which was due to the synergistic effect between the polymers.It was also observed by detailed GC analysis that the PEG/PU membranes had excellent removal effect for thiophene species,which verified the applicability of the solubility parameter theory in complex organic mixture separation by PV.The novel PEG/PU blend membranes showed better performance than PEG membranes for the sulphur removal and the related investigations will provide helpful suggestions for the newly emerged membrane desulphurization technology.
机译：PEG / PU共混膜有效地用于FCC汽油的全蒸发脱硫。通过FTIR分析和X射线衍射研究对膜进行表征。通过FCC汽油进料，研究了在各种条件下膜的全蒸发和脱硫性能。与PEG / PU共混膜的PV脱硫相比，获得了硫富集系数（4.03）和渗透通量（2.5 kg /（m2 h）），这是由于聚合物之间的协同作用所致。通过详细的气相色谱分析观察到，PEG / PU膜对噻吩具有优异的去除效果，这证明了溶解度参数理论在PV分离复杂有机混合物中的适用性。脱硫及相关研究将为新出现的膜脱硫提供有益的建议离子技术。

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