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首页> 外文会议>North American Membrane Society Annual Meeting >Development of a stable SLM for the pervaporative recovery of n-butanol from aqueous solutions and model ABE fermentation broth
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Development of a stable SLM for the pervaporative recovery of n-butanol from aqueous solutions and model ABE fermentation broth

机译：从水溶液和模型发酵肉汤中促进稳定的SLM稳定的SLM，用于水溶液中正丁醇的渗透回收

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Supported liquid membrane (SLM)-based pervaporation is a potential technique for butanol/water separation because it is energy-efficient as SLMs exhibit exceptionally high selectivity and mass flux [1]. However, the insufficient stability of the SLMs severely limits its practical applicability. Liquid membrane (LM) loss during pervaporation can reduce the mass flux and selectivity, and under severe condition cause LM contamination of the feed solution [2-4]. Several stability improvement efforts had been evaluated [1], but most of them are complicated and impractical. Blendinq of LMs is a simple and potential alternative, wherein a known extractant is mixed with a stabilizing diluent. Currently, studies on SLM blends for pervaporative butanol recovery which addresses SLM stability enhancement are rarely reported. In this study, a stable SLM with oleyl alcohol (OA) as the main extractant and a polysiloxane as the stabilizina diluent was developed and employed for the pervaporative recovery of n-butanol from aqueous solutions and model acetone-butanol-ethanol (ABE) fermentation broth.
机译：基于支持的液体膜（SLM）是丁醇/水分离的潜在技术，因为它是节能的，因为SLMS表现出异常高的选择性和质量通量[1]。然而，SLM的稳定性不足严重限制了其实际适用性。渗透蒸发期间的液体膜（LM）损失可以降低质量助熔剂和选择性，并且在严重的情况下导致饲料溶液的LM污染[2-4]。已经评估了几种稳定性改善努力[1]，但大多数是复杂和不切实际的。 LMS的Blendinq是一种简单且潜在的替代方案，其中已知的萃取剂与稳定的稀释剂混合。目前，很少报道研究了解决SLM稳定性增强的渗透丁醇回收的SLM共混物。在该研究中，开发了一种稳定的SLM，作为主要萃取剂和聚硅氧烷作为稳定基稀释剂的聚硅氧烷，并用于从水溶液和模型丙酮 - 丁醇 - 乙醇（ABE）发酵的腐蚀回收正丁醇肉汤。

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