desulfurizer

Desulfurizer generally refers to the agent that removes free sulfur or sulfur compounds from fuel, raw materials or other materials; In the control and treatment of pollutants, it mainly refers to the chemicals used to remove sulfur oxides (including SO2 and SO3) in waste gas. Various basic compounds can be used as desulfurizers. The mixed solution desulfurizer has surface activity and catalytic oxidation, which can promote the direct reaction of SO2, accelerate the dissolution of CaCO3, promote the rapid oxidation of CaSO4 to CaSO4, strengthen the precipitation of CaSO4, reduce the liquid-gas ratio, reduce the calcium-sulfur ratio and reduce the evaporation of water. When SO2 concentration at the flue gas inlet increases and is higher than the design value, the PH value in the reaction tank of the absorption tower decreases, and a larger Ca/S ratio is needed. Under the condition that the volume of the reaction tank of the absorption tower does not need to be expanded, CaCO3 can dissolve quickly, increase the concentration of calcium ions, keep the PH value of slurry in a normal range, and have a certain buffering effect on the PH value. Prolonging the running time of slurry in working section and reducing the times of slurry preparation can obviously reduce the scaling of equipment and make the scale layer thinner. After shutdown, the scale layer is washed with water and easy to fall off. It can disperse and move the scaling of desulfurization system, reduce the deposition of scaling, reduce the content of chloride ions in slurry, and reduce the corrosion and scaling rates of various materials in desulfurization equipment