Media type: E-Article Title: A novel arterial Wick for gas–liquid phase separation Contributor: Beheshti Pour, Negar; Thiessen, David B. imprint: Wiley, 2019 Published in: AIChE Journal Language: English DOI: 10.1002/aic.16499 ISSN: 0001-1541; 1547-5905 Keywords: General Chemical Engineering ; Environmental Engineering ; Biotechnology Origination: Footnote: Description: <jats:p>Gas–liquid phase separation under microgravity conditions or in small‐scale fluidic systems represents a challenge for two‐phase liquid‐continuous systems. In this study, capillary channels formed by 3‐mm diameter stretched stainless‐steel springs coated with a commercial superhydrophobic coating are used to remove air bubbles from water. A single channel is capable of absorbing a stream of 3.7‐mm diameter bubbles impinging on a small area of the channel at a rate of over 50 bubbles/s. High‐permeability walls lead to fast individual absorption events (4 ms for 2.5‐mm bubbles) where bubble collapse time is limited by the inertia of the surrounding liquid. A horizontal three‐channel array has been shown capable of absorbing impinging bubbles from a sparger at superficial gas velocities of 0.03 m/s. The ultimate capacity of the 3‐mm diameter channel is predicted to be much higher than what could be measured with the existing apparatus. © 2018 American Institute of Chemical Engineers AIChE J, 65: 1340–1354, 2019</jats:p>