TY - JOUR AU - Bolenz, Lukas AU - Toye, Dominique AU - Kenig, Eugeny PY - 2019/05/31 Y2 - 2024/03/29 TI - Liquid Flow Morphology of Viscous Systems in Structured Packings: Investigations by X-ray Tomography JF - Chemical Engineering Transactions VL - 74 SP - 913-918 SE - Research Articles DO - 10.3303/CET1974153 UR - https://www.cetjournal.it/index.php/cet/article/view/CET1974153 AB - In the modeling of gas-liquid separation processes in structured packings, fluid dynamics is often reduced to a uniform liquid film flow over the packing surface. However, previous experiments with X-ray tomography indicate that this assumption is not valid when the liquid-phase viscosity is significantly higher than 1 mPa s. In order to improve existing modeling approaches for viscous systems, a better understanding of the influence of the liquid viscosity on the liquid flow inside the structured packing is necessary. In this work, X-ray tomography is used to investigate the flow morphology of liquid systems with low surface tension and a viscosity up to 50 mPa s. An empirical correlation that describes the hold-up fraction of the existing flow patterns is given and a modelling approach is proposed that allows to consider the influence of the different flow patterns on mass transfer. ER -