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The oxidation of sulphur dioxide by bromine and water

1980; Elsevier BV; Volume: 5; Issue: 1 Linguagem: Inglês

10.1016/0360-3199(80)90117-2

1879-3487

D. Van Velzen, H. Langenkamp,

Carbon Dioxide Capture Technologies

Abstract The reaction of SO 2 , Br 2 and H 2 O, forming HBr and H 2 SO 4 , is one of the reactions of the hybrid cycle for thermochemical decomposition of water, Mark-13. Experimental work on this reaction is described in this paper. Equilibrium measurements show that high sulfuric acid concentrations (higher than 80 wt%) are attainable. At low sulfuric acid concentrations only traces of Br 2 and/or SO 2 remain in the gaseous phase. Besides the equilibrium determinations, development work by dynamic experiments has also been carried out. A simple mathematical model for the reaction rate in packed columns has been developed which satisfactorily fits the available experimental data.