Improving the Performance of Gas/Liquid Contactors by Optimizing Material Surface Properties

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Andreas Dubbe¹  Peter Pfeifer¹  Roland Dittmeyer¹  Nadia Schüler¹  Kristin Hecht¹  Manfred Kraut¹ 

[1] Institute for Micro Process Engineering (IMVT), Karlsruhe Institute of Technology (KIT)

关键词: Microstructured Reactors;    Micro Process Engineering;    Gas/Liquid Separation;    Membrane;    Wettability;   

DOI  :  10.1252/jcej.12we072

来源: Maruzen Company Ltd

【 摘 要 】

References(19)Cited-By(2)Interfacial properties play an increasingly important role in gas/liquid devices as the characteristic dimensions become smaller. This contribution describes the application of microstructured devices to gas/liquid systems being studied at the Institute for Micro Process Engineering. In microstructured reactors, good wettability is desired to maximize the gas/liquid interfacial area. In this work, the material wettability is demonstrated to impact the flow pattern as well as reaction conversion. Using a membrane to stabilize a gas/liquid interface for the purpose of gas/liquid separation requires a robust and poorly wettable membrane. A Gore PTFE membrane is able to achieve a stable interface and separate CO2 from water. Since the material wettability has a decisive impact on the operation of gas/liquid reactors and separators, controlling this property could improve the performance of microstructured devices. Thin films of silicon and carbon have been deposited with PECVD. The films demonstrate a promising method to alter and control surface properties.

【 授权许可】

Unknown