Carbon dioxide absorption in glucosamine aqueous solutions

The present paper includes studies related to gas/liquid mass transfer process of carbon dioxide in aqueous solutions of glucose and glucosamine. These studies have been carried out employing a cylindrical bubble column, where the gas phase was fed through an only orifice. The absorption process has been characterized taken into account the influence of gas flow-rate and the liquid phase composition. The interfacial area was determined using a photographic method to calculate the value of the liquid side mass transfer coefficient. Liquid phase composition influences the value of the mass transfer coefficient due to the variation of solution viscosity. Eddy and slip models have been employed to correlate the experimental data of mass transfer coefficient.