Pervaporation for the separation of transesterification reaction mixtures
(2019)
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- Abstract
- The increasing demand of raw materials and the risk of sources depletion are becoming the motivation for the development of new bio-based routes of synthesis of chemicals. The use non-renewable natural resources, such as fossil fuels, and the generation of greenhouse gases lead to severe environmental problems. However, one of the challenges of using renewable biomass resources to produce building molecules is to achieve an efficient and economically affordable purification step due to the complexity of the mixture and high cost of separation. Separation processes such as distillation and liquid-liquid extraction have been proposed to purify target compounds from bio-based sources. However, the high energetic cost associated with those processes is directing the current research towards the development of other alternatives. Membrane technology appears in this context in the form of pervaporation as a potential solution to minimize the energy consumption of the separation process. Pervaporation achieves the separation of challenging liquid-liquid mixtures, except non-volatile compounds. In this thesis, organic liquid mixtures from three model transesterification reactions, typically performed in the production of bio-based chemicals, were studied for the application of pervaporation separation, involving commercial membranes, self-made PEEK membranes and supported ionic liquid membranes.
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Citations
Li, W. (2019). Pervaporation for the separation of transesterification reaction mixtures. https://hdl.handle.net/2078.5/53810