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首页> 外文期刊>Journal of industrial and engineering chemistry >Poly(octylmethylsiloxane)/oleyl alcohol supported liquid membrane for the pervaporative recovery of 1-butanol from aqueous and ABE model solutions
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Poly(octylmethylsiloxane)/oleyl alcohol supported liquid membrane for the pervaporative recovery of 1-butanol from aqueous and ABE model solutions

机译：聚（辛基甲基硅氧烷）/油醇负载的液膜可从水溶液和ABE模型溶液中全蒸发回收1-丁醇

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摘要

Supported liquid membranes (SLM) composed of oleyl alcohol (OA) and poly(octylmethylsiloxane) (POMS) in microporous flat sheets were investigated for the pervaporation of 1-butanol. Water contact angle and partition coefficients were used to characterize the SLMs. Optimum pervaporation performance was attained at 30 wt% OA SLM wherein high separation factor (α = 279) and total flux (J_T = 95.9 g/(m~2 h)) were achieved from 2.5% (w/v) 1-butanol/water feed, at 60 °C. In these conditions, 27% reduction in J_T was observed when fed with model fermentation broths but remained highly selective toward 1-butanol (α = 76.4). SLM stability was demonstrated with <4% LM loss after operation.
机译：研究了在微孔平板中由油醇（OA）和聚（辛基甲基硅氧烷）（POMS）组成的支撑液膜（SLM）对1-丁醇的渗透作用。水接触角和分配系数用于表征SLM。在OA SLM为30 wt％时可获得最佳的全蒸发性能，其中2.5％（w / v）1-丁醇/ g可实现高分离系数（α= 279）和总通量（J_T = 95.9 g /（m〜2 h））。给水温度为60°C。在这些条件下，当饲喂模型发酵液时，J_T降低了27％，但对1-丁醇的选择性仍然很高（α= 76.4）。手术后LM损失<4％，证明了SLM的稳定性。

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