CO2 Absorption using TiO2 nanoparticle suspended water solvent in a packed bed absorption column

ABSTRACT Nanotechnology provides application to the researchers for the utilization of nano particles in heat and mass transfer operations. By considering this concept, research framework was made to study the CO2 absorption performance of TiO2 nanoparticle suspended water solvent in a packed bed absorption column. Initially the solvent with different TiO2 nanoparticle concentration was prepared. The CO2 gas and TiO2 suspended water solvent is entered into the column counter currently. In the present study, the impact of nanoparticle concentration and gas flow rate on the CO2 absorption was studied in the packed bed absorption column. 35, 45 and 55 LPH of gas flow rate used and 0.25, 0.5, 0.75, 1.0, 1.25 and 1.5 volume % (vol. %) of TiO2 nanoparticle suspensions were prepared and used in the study. The CO2 absorption was determined in terms of molar flux (mol/m2s). The obtained results of nanoparticle suspension were compared with the solvent without nanoparticle. It was observed significant improvement in CO2 gas absorption by the TiO2 nanoparticle suspension. From the study it was revealed that the TiO2 nanoparticle suspension increased the percentage of CO2 absorption, and the results indicated that the maximum absorption was obtained at 1.0 vol% of TiO2 nanoparticle suspension concentration at the prepared gas flow rates. Keywords: Absorption, CO2, TiO2, Nanoparticle, Packed Bed Absorption Column