Effect of Operating Pressure and Electrode Surface Roughness on Gas-Liquid Flow Patterns in Thin-Gap Electrochemical Microreactor

0391684 - ÚCHP 2014 CZ eng A - Abstract
Křišťál, Jiří - Stavárek, Petr - Záloha, Petr - Jiřičný, Vladimír
Effect of Operating Pressure and Electrode Surface Roughness on Gas-Liquid Flow Patterns in Thin-Gap Electrochemical Microreactor.
Program and Abstracts. Prague: ICPF ASCR, 2013. s. 61. ISBN N.
[Workshop on Smart and Green Interfaces 2013. 20.3.2013-22.03.2013, Prague]
Grant - others:COST(XE) MP1106
Program: COST Actions
Institutional support: RVO:67985858
Keywords : bubbles * experimental investigation * microreactor
Subject RIV: CI - Industrial Chemistry, Chemical Engineering

This contribution reports on the experimental investigation of the effect of the operating pressure and electrodes surface roughness on gas-liquid flow in the thin-gap electrochemical microreactor. For description of gas-liquid flow in the microreactor two hydrodynamic characteristics were selected: flow pattern and bubble size distribution. Experimental data obtained by visualization of gas-liquid flow in microreactor were evaluated by image processing using Matlab Image Processing Toolbox. Our results show that in a thin-gap microreactor the four distinct flow patterns may exist. Namely, the flow without bubbles, dispersed bubbly flow, bubbly flow and churn flow were observed.
Permanent Link: http://hdl.handle.net/11104/0220671