Liquid Phase CO 2 ‐Analytics for Standardized Mass Transfer Characterization in Packed Columns

Mass transfer parameters are necessary for the design of absorption and desorption processes in packed columns. To determine the effective interfacial area and liquid side mass transfer parameters, CO 2 absorption and desorption are frequently used. Reliable analytics for concentration determination are essential to obtain correct results. In this work two methods of CO 2 liquid phase analysis are compared: first, the back titration of unreacted NaOH after prior precipitation of the bound CO 2 ; secondly, the inorganic carbon analysis with a commercial inorganic carbon analyzer.