Fig. 4From: Homogeneous oxidation of SO2 in the tail gas incinerator of sulfur recovery unita Effect of the input SO2 concentration on the output SO3 concentration in the flue gas and conversion of SO2 to SO3, b order of dependency with respect to SO2 concentration for SO3 formation reaction. Inlet gas mixture for the experiments: variable ppm of SO2, 4 vol% O2, and balance N2, at temperature of 850 ℃Back to article page