| 摘要 |
In a method for the catalytic oxidation of a gas, the required expenditure should be kept as low as possible even with a reliable treatment of comparatively large amounts of gas and/or high concentrations of gas portions that require treatment. To this end, according to the invention, a gas flow (G) comprising the gas to be treated is circulated via a reaction zone (4) and via a reflux zone 6 communicating with it at the inlet and outlet end. An especially effective maintenance of the circulation of the gas flow can be obtained thereby in the manner of a passive system by preferably conveying the gas flow (G) comprising the gas to be treated in the reaction zone (4) in an upward direction and by assisting the upward flow convectively by means of the heat released during the oxidation reaction. Furthermore, the gas flow (G) is preferably cooled locally in the reflux zone (6) by spray cooling.
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