The Effect of Contact Time and Concentration of Oxygen on the Efficiency of the Catalytic Reduction of Dissolved Oxygen

3 Abstract: In this work, removal of dissolved Oxygen in water through a reduction catalytic method was studied. The effect of contact time and Oxygen concentration were investigated on the efficiency of the catalytic reduction of dissolved Oxygen. In steam power plants that dissolved Oxygen levels should be less than 5 ppb, the required contact time for this process is at least about 45 seconds. Also in a fixed volume of the catalyst at a low amount of dissolved Oxygen in inlet water, a higher rate of water could flows through the catalyst bed and the Hydrogen injection rate would be lower.