ADIABATIC GAS ABSORPTION AND STRIPPING WITH CHEMICAL REACTION IN PACKED TOWERS

In the design of adiabatic gas absorption, the temperature distribution within the column is an important consideration. Temperature influences the degrees of heat and mass transfer through the thermodynamic phase equilibrium relationships and reaction rates. The capacity of an absorber is limited through the formation of a temperature plateau. Gas absorption in a chemically reactive solvent in an adiabatic packed column is modelled rationally for the first time taking into account the major heat effects. An iterative computational method for computing packed bed height is presented. The design procedure is illustrated by sample calculations for carbon dioxide (CO₂) absorption in monoethanolamine (MEA).