Automatic apparatus for catalyst characterization by temperature-programmed reduction/desorption/oxidation

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Abstract
An apparatus is described for the automatic quantitative registration of reduction, desorption/adsorption, and oxidation phenomena which occur when a catalyst sample is heated or cooled under temperature programming in a flowing gas that contains either hydrogen or oxygen as the reactive component. The design considerations and the automation scheme are fully discussed. A typical example of the characterization of a catalytic reforming catalyst by means of its temperature‐programmed reduction, (hydrogen) desorption, and oxidation profiles is shown. Quantitative results are repeatable to within 1% relative.