Innovative membranes for the separation of organic mixtures by pervaporation

Xu, Xiao
(2023)

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Authors
  • Xu, XiaoUCLouvain
    author
Supervisors
Luis Alconero, Patricia
Abstract
With the advancement in membrane characterization techniques, our understanding and knowledge of pervaporative membranes have significantly improved. Using the "Preferential Sorption-Diffusion and Capillary Flow" concept as a guide, high-efficiency pervaporation membranes for MeOH and DMC separation were designed and synthesized. Firstly, Diffusion and Capillary Flow-dominated membranes using chitosan and ZIF-8 were developed to separate MeOH from low-MeOH concentration feeds. Secondly, Preferential Sorption-dominated membranes using ionic liquids or ZIF-8 to selectively separate DMC from MeOH were designed and synthesized. Finally, the excellent performance of reactive pervaporation in the glycerol transesterification reaction with DMC was obtained. This thesis introduces innovative pervaporation membranes that enhance separation efficiency involving MeOH and DMC or the reaction yields in equilibrium-limited processes involving MeOH and DMC. Valuable insights for chemical engineering, sustainability, and process efficiency are provided, with the potential to revolutionize industrial practices and minimize environmental impact.
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Citations

Xu, X. (2023). Innovative membranes for the separation of organic mixtures by pervaporation. https://hdl.handle.net/2078.5/100675