TY  - JOUR
AU  - Mielke, Kristina
AU  - Ickenroth, Philipp
AU  - Jupke, Andreas
TI  - Experimental Setup for Understanding the Influence of Wall Contact of Structured Packing Material on Drop Sedimentation in Liquid–Liquid Systems
JO  - Industrial & engineering chemistry research
VL  - 64
IS  - 36
SN  - 0888-5885
CY  - Columbus, Ohio
PB  - American Chemical Society
M1  - FZJ-2026-00386
SP  - 17685 - 17695
PY  - 2025
N1  - Grant: Exploratory Research Space: Seed Fund (2) als Anschubfinanzierung zur Erforschung neuer interdisziplinärer Ideen (RWTH intern)
AB  - To model liquid–liquid extraction columns (LLE-columns) accurately, correlations for occurring phenomena inside the columns (e.g., drop sedimentation) are necessary. Currently, existing correlations for the sedimentation velocity of drops in LLE-columns equipped with structured packings do not consider the interaction of the drops with different packing material surfaces or the complex geometry of those. Therefore, utilizing these correlations for designing these LLE-columns still exhibits high uncertainties, which commonly necessitate cost- and time-expensive experiments. To accelerate the efficiency of the design of these LLE-columns, we present a measuring cell in which single drop-wall interactions can be investigated. To quantify the drop-wall interaction, drop velocity, contact angle, and contact line can be measured optically while varying the counter-current flow, drop size, tilting angle, and surface material. The experimentally determined velocities are in accordance with sedimentation velocities in structured packings. Common correlations for sedimentation velocities in structured packings turned out not to be universally applicable.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1021/acs.iecr.5c01952
UR  - https://juser.fz-juelich.de/record/1050634
ER  -