Oxygen desorption from water in a column apparatus with packet packing

Thermal water deoxidisation is a physical process of oxygen desorption from water occurring in the conditions of concurrent heat and mass exchange. The research of the present work required the construction of an original research stand. It was used for performing a series of preliminary tests aimed at the assessment of the influence of controllable parameters of the process and the influence of the number of layers of packing and also its configuration on the process itself. The results of tests were presented in the form of graphs illustrating the relationship between temperature, oxygen concentration in the degassed water and the number of layers in the compact and spaced packet of packing. The graphs present the above relationship in the variable temperature of water directed to the desorber. As a result of performing preliminary tests, a packet packing composed of seven compact layers was chosen for application in main tests. In order to generalise the obtained test results, a model based on Colburn's method was proposed. The height of the transfer unit was dependent on the ratio of the intensity of the flowing phases and the ratio of the temperature of water directed to degassing and the optimal temperature for the process.