TY - JOUR
T1 - MASS TRANSFER IN TWO-PHASE FLOW CHANNEL ELECTROLYZERS.
AU - Economou, Demetre J.
AU - Alkire, Richard C.
PY - 1984
Y1 - 1984
N2 - The electrochemical limiting current method was employed to study the mass transfer to a solid electrode in cocurrent gas-liquid flow through a vertical parallel plate electrolyzer. Three systems were investigated: aqueous ferricyanide, aqueous ferricyanide containing a dispersion of nitrogen bubbles, and aqueous electrolyte containing a dispersion of oxygen bubbles in equilibrium with the liquid phase. The total mass transfer rate was found to be the sum of three contributions: (1) the one-phase convective rate associated with the liquid as if it were flowing alone through the cell, (2) the enhancement of mass transfer owing to disruption of the mass transfer boundary layer even by bubbles containing inert gas, and (3) the further enhancement owing to penetration of the mass transfer boundary layer by bubbles containing reactive gas. A series of controlled experiments was conducted to determine the dependence of these enhancement mechanisms upon operating variables such as gas and liquid flow rates and bubble size.
AB - The electrochemical limiting current method was employed to study the mass transfer to a solid electrode in cocurrent gas-liquid flow through a vertical parallel plate electrolyzer. Three systems were investigated: aqueous ferricyanide, aqueous ferricyanide containing a dispersion of nitrogen bubbles, and aqueous electrolyte containing a dispersion of oxygen bubbles in equilibrium with the liquid phase. The total mass transfer rate was found to be the sum of three contributions: (1) the one-phase convective rate associated with the liquid as if it were flowing alone through the cell, (2) the enhancement of mass transfer owing to disruption of the mass transfer boundary layer even by bubbles containing inert gas, and (3) the further enhancement owing to penetration of the mass transfer boundary layer by bubbles containing reactive gas. A series of controlled experiments was conducted to determine the dependence of these enhancement mechanisms upon operating variables such as gas and liquid flow rates and bubble size.
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M3 - Conference article
AN - SCOPUS:0021665577
SN - 0161-6374
VL - 84-11
SP - 325
EP - 340
JO - Proceedings - The Electrochemical Society
JF - Proceedings - The Electrochemical Society
ER -