Festkörperreaktionen in Katalysatoren und Katalysatorkomponenten. XV. Zum Reduktionsverhalten von Sulfat-lonen in γ-Al2O3

Solid State Reactions in Catalysts and Components of Catalysts. XV. On the Reduction Behaviour of Sulfate Ions in γ-Al₂O₃ Different sulphuric acid modified alumina samples were used as model systems for sulfided and regenerated Al₂O₃ carrier catalysts. From investigations of temperature programmed reduction can be concluded that sulphur is reduced by hydrogen to sulfide state at temperatures between 500 and 750°C. The greater part will desorbed as H₂S but a smaller one remains adsorbed on the alumina surface.