Measuring Carbon Monoxide Gas-Liquid Mass Transfer in a Stirred Tank Reactor for Syngas Fermentation

摘要

Carbon monoxide-liquid mass transfer rates in a water-filled stirred tank reactor are determined using a myoglobin protein method to measure dissolved carbon monoxide concentrations as a function of time.Data are acquired over a range of stirrer speeds (200 <=N<=600 rpm)and gas flow rates (1 <=Q <=6 L/min),corresponding to a gas retention time range of 1.2-7 min.Volumetric CO-water mass transfer coefficients range from 0.003 to 0.043 s~(-1)and are well-correlated using the power density and the superficial gas velocity.