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使用可生物降解的聚乙烯基酸--甲) 膜,用于醇蒸发回收

Meng Zhang¹, Qian Xu², Changlin Liu³

¹Department of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.

Physical chemistry chemical physics : PCCP

|June 27, 2023

概括

一个新的可生物降解的聚乙烯基合甲基酸盐 (PBAT) 膜提供了很好的分离,一个高沸点有机化合物 (HBOC). 这种可持续的方法避免了与传统膜相关的污染和处置问题.

科学领域:

膜科学和分离技术分离技术
绿色化学和可持续材料

背景情况:

使用过的膜带来了环境挑战,与可持续发展目标相冲突.
像这样的高沸点有机化合物 (HBOC) 需要高效和环保的分离方法.

研究的目的:

开发和评估一种可生物降解的聚乙烯基酸盐-联合甲酸盐 (PBAT) 膜,用于蒸发.
调查PBAT膜在回收中的分离机制和性能.
评估使用可生物降解膜用于HBOC分离的环境效益.

主要方法:

使用PBAT膜进行了蒸发实验.
用分子动力学 (MD) 模拟来研究膜-目标相互作用和运输现象.
进行了胀实验和分子间相互作用能量计算.
分析了料度和温度对分离性能的影响.

主要成果:

该PBAT膜证明了的杰出分离效率.
通过胀和相互作用能量研究证实了PBAT膜和之间强烈的亲和力.
MD模拟预测了的优良吸附,扩散和透性能.
增加的料度增加了因偏好的醇吸附和增加的自由体积而增加的成分流量.
最佳分离性能是在333K时实现的.

结论:

可生物降解的PBAT膜是蒸发的可行和可持续的替代方案.
PBAT膜有效地分离高沸点有机化合物 (HBOCs),如,最大限度地减少对环境的影响.
该研究使用实验和模拟方法提供了PBAT膜分离的机制理解.

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