The combination of pervaporation (PV) and distillation provide considerable potential for the separation of azeotropic multicomponent mixtures. However, only a proper techno-economic evaluation of these processes compared to a reference process enables a reliable evaluation of benefits. Within this work, the potential of a PV-assisted distillation process is evaluated for the mixture of tetrahydrofuran methanol and water compared to a heat-integrated pressure-swing distillation process. Since initial evaluations reveal a significant potential of the PV-assisted processes regarding the required energy demand, experimental investigations of three polymeric and two inorganic membranes were conducted. A detailed characterization of the most promising membranes PERVAP™ 4155–40 and Hybrid Silica HybSi® AR was performed, and the latter one provided the highest permeance and selectivity. Based on the derived flux models, an economical optimization was performed. Despite the energy-benefits of the PV-assisted processes, the reference process was still evaluated more favorable under the considered framework, mainly caused by high investment and cooling costs. The current study illustrates the benefits of a tight integration of model-based process design and experimental investigations. Despite possible energy savings and promising performance metrics of the membrane, an assessment of the techno-economic performance of these processes is of major importance to identify applications.

渗透蒸发 (PV) 和蒸馏的结合为共沸多组分混合物的分离提供了相当大的潜力。然而，只有与参考过程相比，对这些过程进行适当的技术经济评估才能对收益进行可靠的评估。在这项工作中，与热集成变压蒸馏过程相比，评估了四氢呋喃甲醇和水的混合物的 PV 辅助蒸馏过程的潜力。由于初步评估揭示了光伏辅助过程在所需能量需求方面的巨大潜力，因此对三种聚合物膜和两种无机膜进行了实验研究。对最有前途的膜 PERVAP™ 4155-40 和混合二氧化硅 HybSi® AR 进行了详细表征，后者提供了最高的渗透性和选择性。基于导出的通量模型，进行了经济优化。尽管光伏辅助工艺具有能源效益，但在所考虑的框架下，参考工艺仍被评估为更有利，主要是由于高投资和冷却成本。当前的研究说明了基于模型的过程设​​计和实验研究紧密集成的好处。尽管可能节能且膜的性能指标有前景，但对这些工艺的技术经济性能的评估对于确定应用非常重要。在考虑的框架下，参考工艺仍然被评估为更有利，主要是由于高投资和冷却成本。当前的研究说明了基于模型的过程设​​计和实验研究紧密集成的好处。尽管可能节能且膜的性能指标有前景，但对这些工艺的技术经济性能的评估对于确定应用非常重要。在考虑的框架下，参考工艺仍然被评估为更有利，主要是由于高投资和冷却成本。当前的研究说明了基于模型的过程设​​计和实验研究紧密集成的好处。尽管可能节能且膜的性能指标有前景，但对这些工艺的技术经济性能的评估对于确定应用非常重要。