Inorganic porous hollow fibers for intensified fractionation and filtration

与有机纤维相比，无机多孔中空纤维（iPHF）具有优越的热、化学和机械稳定性。iffs具有前所未有的性能，加上制造简便、成本低廉，使其应用前景极其广阔。在跨国STW/DFG项目中，我们成功开发了高渗透性和机械坚固的碳化硅中空纤维膜。这些新型薄膜具有导电性，可作为可加热中空纤维使用。在该项目中，我们研究了加热纤维在渗透过程中对流动剖面的基本影响，并将纤维应用于两种基本情况，即制造具有可调渗透性和选择性的膜，以及使用纤维在过滤过程中有效减少污垢。除了碳化硅纤维，我们正在开发和优化其他特殊应用的iPHF：金属纤维和用于变温吸附的金属涂层陶瓷空心纤维。计划延长一年的目标（如最初的项目提案所述）是应用金属涂层中空纤维进行变温吸附，扩大微凝胶涂层膜的渗透范围，并扩展对可渗透壁上混合对流流动模式的基础研究。正在进行的研究涉及材料科学和工艺技术的明确结合，并在这些领域的两个领先小组之间成功和密切的跨国合作中进行：无机膜（特温特大学）和化学过程工程小组（亚琛工业大学）。

Inorganic porous hollow fibers (iPHF) offer superior thermal, chemical, and mechanical stability compared to their organic counterpart. The unprecedented properties of iPHFs combined with facile and inexpensive fabrication makes their application landscape extremely broad. Within the transnational STW/DFG project we have successfully developed highly permeable and mechanically robust silicon carbide hollow fiber membranes. These novel membranes are electrically conductive and enable their use as heatable hollow fibers. Within the project we studied the fundamental effects of a heated fiber on the flow profile during permeation and applied the fibers to two base case applications, namely creating membranes with tunable permeation and selectivity and using the fibers for an effective fouling reduction in filtration processes.Apart from silicon carbide fibers, we are in the process of developing and optimizing other iPHF for distinctive applications: metal fibers and metal coated ceramic hollow fibers for temperature swing adsorption.The objective of the proposed one year extension of the program (as specified in the initial project proposal) is to apply metal coated hollow fibers for temperature swing adsorption, broaden the permeation range of microgel coated membranes and extend the fundamental investigation of flow patterns of mixed convection at permeable walls. The ongoing research involves an unequivocal combination of Materials Science and Process Technology, and is carried out in a successful and close-working transnational collaboration between two leading groups in these respective fields: Inorganic Membranes (University of Twente) and Chemical Process Engineering group (RWTH Aachen).