Science & Blog
Forschung & Publikationen
Predicition of drop sizes for liquid-liquid systems in stirred slim reactors – Part I: Single stage impellers, 2010
— Authors: Maaß, S., Metz, F., Rehm, T. und Kraume, M.— Chemical Engineering Journal, 162 (2): 792 – 801 (link) Although investigations in the field of stirred liquid/liquid dispersions have a long history, new questions are still emerging in dealing with the different aspects of industrial applications, such as suspension polymerizations. In
Analysis of particle strain in stirred bioreactors by drop breakage investigations, 2011
— Authors: Maaß, S., Buscher, S., Hermann, S. und Kraume, M. — Biotechnology Journal, 6(8): 979-992 Understanding of particle strain and drop breakage is relevant for various technical applications. To analyze it, single drop experiments in a breakage cell and evolving drop size distributions in an agitated system are studied.
Determination of breakage rates using single drop experiments, 2012
— Authors: Maaß, S. und Kraume, M.— Chemical Engineering Science, 70: 146-164 (link) An evaluation of several breakage rates from the literature based on single drop experiments was carried out. This data was collected in a single drop breakage cell under turbulent conditions, comparable to those in a stirred tank. For
Influence of the dispersed phase fraction on experimental and predicted drop size distributions in breakage dominated stirred systems, 2012
— Authors: Maaß, S., Paul, N. und Kraume, M. — Chemical Engineering Science, 76: 140-153 (link) The effect of the dispersed phase fraction on the evolving drop size distribution in different low viscous agitated liquid/liquid systems was investigated. The analysis focused on the drop breakage phenomena by hindering the coalescence completely.
Prozesse auf Basis der Partikelgröße steuern, 2012
— Authors: Maaß, S. und Kraume, M. — Computers and Chemical Engineering, 45: 27-37 (link) Das Sopat-System (Smart On-line Particle Analysis Technology) ist die Kombination einer photo-optischen Messtechnik und einer Bildverarbeitungs-Software. Diese analysiert im Gegensatz zu herkömmlichen inline-Sonden auch in hochkonzentrierten Dispersionen Größe und Konzentration von festen oder fluiden Partikeln in
Oxygen Absorption into Stirred Emulsions of n-Alkanes, 2012
— Authors: Ngo, T. H. und Schumpe, A. — International Journal of Chemical Engineering, 2012 (link) Absorption of pure oxygen into aqueous emulsions of n-heptane, n-dodecane, and n-hexadecane, respectively, has been studied at 0 to 100% oil volume fraction in a stirred tank at the stirring speed of 1000 min−1. The volumetric
Automatische Blasenzählung mit quantitativer Größenanalyse in turbulenten Gas/Flüssig-Systemen, 2012
— Authors: Emmerich, J., Maaß, S., Rojahn, J., Kraume, M. and Neubauer, P. — Chemie Ingenieur Technik, 84(8): 1189 No abstract is available for this article.
Effective and Intrinsic Kinetics of Liquid-Phase Isobutane/2-Butene Alkylation Catalyzed by Chloroaluminate Ionic Liquids, 2013
— Authors: Schilder, L., Maaß, S. und Jess, A. — Industrial & Engineering Chemistry Research, 52(5): 1877-1885 (link) The kinetics of the IL-catalyzed reaction of isobutane with 2-butene and the size distribution of the dispersed IL droplets were investigated in a stirred tank reactor. The results were used to calculate the