Collect. Czech. Chem. Commun. 1981, 46, 72-78

Mass transfer between a moving gas stream and single particles of some important sorbents for sulphur dioxide

Miloslav Hartman and Karel Svoboda

Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague-Suchdol


For the particles of calcium oxide and active sodium carbonate an effect of mass transfer is explored on the overall rate of their reactions with sulphur dioxide. The results of a simple analysis show that the mass transfer resistance in the gas phase cannot be neglected. The extraordinary reactivity of active sodium carbonate can be fully utilized only in such contactors where very high rates of mass transfer are ensured.