TEMPERATURE PROFILE OF COUNTERCURRENT GAS-LIQUID FLOW IN A PACKED-COLUMN

The purpose of this study was to measure the temperature profile, to d etermine the mean temperature and to investigate the interaction betwe en fluid temperatures and hydrodynamic behaviour of a 0.1 m diameter 1 m height absorption column packed with 0.012 m Raschig-rings. The val ues of measured parameters were chosen in the good operating domain of the packed tower and below that using the practical loads and tempera tures of SO2 absorption from low concentration gases by sodium-citrate buffer solution. To determine the temperature, profile electric semic onductor sensors were placed into the packing along the vertical axis of the column. The data recording and processing were aided by a perso nal computer. The measured data supported our consideration, that in t he lower 10 cm of the column height the gas phase becomes saturated wi th the vapour of the liquid phase which causes a fast cooling of both fluids, while above that the column works as a counter-current heat ex changer.