Fig. 5From: Homogeneous oxidation of SO2 in the tail gas incinerator of sulfur recovery unita Effect of the input O2 concentration on the output SO3 concentration in the flue gas, b order of dependency with respect to O2 concentration for SO3 formation reaction. Inlet gas mixture for the experiments: variable ppm of O2, 1 vol% SO2, and balance N2, at temperature of 850 ℃Back to article page