Study On Acceleration Effect Of Additives On Forming Of Sulfate In FGD Under Homogenous Condition

Through a self-designed lightproof intermittent reactor, homogenous oxidation kinetics of sodium sulfite was studied under uncatalyzed, catalyzed and inhibited conditions, respectively. In these experiments, manganese sulfate, magnesium chloride and acidum peroxyaceticum acted as catalysts, while alcohol, acetonitrile, phenol and hydroquinone as inhibitors. Orders of the oxidation in sulfite, oxygen and additives were achieved and the rate constants and activation energies were calculated. Compared with the uncatalyzed results, effect of different additives on this oxidation was discussed. The mechanism of some additives was supposed as well. The results is helpful to get detailed knowledge of the oxidation, increase the oxidation rate, look for influencing factors and controlling methods on the reaction. Thus, the beneficial reference is provided for improving desulfurizing efficiency and reducing desulfurizing cost.