Effect of water on the solubilities and mass transfer coefficients of gases in a heavy fraction of fischer‐tropsch products

Abstract

Abstract The effects of water on the solubilities, C * , and volumetric mass transfer coefficients, k L a , for CO, H 2 , CH 4 and CO 2 in a heavy fraction of Fischer‐Tropsch liquid were examined at elevated pressures and temperatures at different mixing power inputs. For these gases, higher solubilities were measured in the hydrocarbon mixture saturated with water than those obtained in the hydrocarbon free of water. The k L a values for the four gases were slightly affected by the presence of dissolved water in the hydrocarbon mixture; and they were strongly dependent on the power input per unit liquid volume. Two empirical correlations for k L a as a function of turbine speed and pressure are proposed.