Inorganic porous hollow fibers for intensified fractionation and filtration

用于强化分级和过滤的无机多孔中空纤维

• 批准号: 225799829
• 负责人: Professor Dr.-Ing. Matthias Wessling
• 金额: --
• 依托单位: Lehrstuhl für Chemische Verfahrenstechnik (CVT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/225799829?language=en
• 关键词: Inorganic; porous; hollow; fibers; intensified

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).

与有机中空纤维相比，无机多孔中空纤维(IPHF)具有优异的热稳定性、化学稳定性和机械稳定性。IPHFs史无前例的特性与简单、廉价的制造相结合，使其应用前景极其广阔。在跨国STW/DFG项目中，我们成功地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，可用作可加热的中空纤维。在该项目中，我们研究了加热纤维在渗透过程中对流型的基本影响，并将纤维应用于两种基本情况，即创建具有可调渗透率和选择性的膜以及使用纤维在过滤过程中有效减少污染。除了碳化硅纤维外，我们正在开发和优化其他用于变温吸附的IPHF：金属纤维和金属涂层陶瓷中空纤维用于变温吸附。该计划拟议延长一年的目标是应用金属涂层中空纤维进行变温吸附，拓宽了微凝胶涂层膜的渗透范围，拓展了渗透壁上混合对流流型的基础研究。正在进行的研究涉及材料科学和过程技术的明确结合，并在这些领域的两个领先小组之间成功地、密切合作地进行：无机膜(Twente大学)和化学过程工程小组(RWTH Aachen)。