Membrane–Fabric Composite Filter Media for Continuous Cake Filtration without Gas Throughput Using Paste Dot Coating with Adhesive

  • In the field of liquid filtration, the realization of gas throughput-free cake filtration has been investigated for a long time. Cake filtration without gas throughput would lead to energy savings in general and would reduce the mechanically achievable residual moisture in filter cakes in particular. The reason why gas throughput-free filtration could not be realized with fabrics so far is that the achievable pore sizes are not small enough, and that the associated capillary pressure is too low for gas throughput-free filtration. Microporous membranes can prevent gas flow through open pores and cracks in the filter cake at a standard differential pressure for cake filtration of 0.8 bar due to their smaller pore size. Since large-scale implementation with membranes was not yet successful due to their inadequate mechanical strength, this work focuses on the development and testing of a novel composite material. It combines the advantages of gas throughput-free filtration using membranes with the mechanical stability of fabrics. For the production of the composites, a paste dot coating with adhesive, which is a common method in the textile industry, was used. Based on filtration experiments, delamination and tensile tests, as well as CT analysis, it is shown that this method is suitable for the production of composite filter materials for gas throughput-free cake filtration.
Metadaten
Verfasser*innenangaben:Nikolai BenzORCiD, Fabian Krull, Kai Nikolaus, Sergiy AntonyukORCiD
URN:urn:nbn:de:hbz:386-kluedo-77312
Titel des übergeordneten Werkes (Englisch):Membranes
Verlag:MDPI
Dokumentart:Wissenschaftlicher Artikel
Sprache der Veröffentlichung:Englisch
Datum der Veröffentlichung (online):18.09.2023
Jahr der Erstveröffentlichung:2023
Veröffentlichende Institution:Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
Datum der Publikation (Server):01.03.2024
Ausgabe / Heft:2023, 13, 801
Quelle:https://doi.org/10.3390/ membranes13090801
Fachbereiche / Organisatorische Einheiten:Kaiserslautern - Fachbereich Maschinenbau und Verfahrenstechnik
DDC-Sachgruppen:6 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau
Sammlungen:Open-Access-Publikationsfonds
Lizenz (Deutsch):Zweitveröffentlichung