FIELD: chemistry.
SUBSTANCE: invention relates to an apparatus for continuous catalytic full or partial oxidation of an initial gas containing sulphur dioxide and oxygen. The apparatus has at least one tubular contacting apparatus behind which one or more contacting stages and one or more absorbers are connected. The tubular contacting apparatus is a standing heat-exchanger made of several tubes with a double jacket, having inner and outer tubes. The inner tubes are filled with a catalyst and the space between the inner and outer tubes is meant to transfer heat around the inner tube through a medium directed by parallel flow.
EFFECT: high efficiency of oxidising an initial gas containing sulphur dioxide and oxygen.
7 cl, 5 dwg, 1 tbl, 4 ex
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