Abstract
The results of an experimental investigation of the performance of a countercurrent moving-bed chromatographic reactor are presented. The test reaction is the hydrogenation of 1,3,5-trimethylbenzene vapor at 190°C by Pt supported on 30–50 mesh Al 2O 3. Simultaneous reaction and separation of the reactant and product, 1,3,5,-trimethylcyclohexane, occur during the continuous contacting, giving good product purity. Conversions can, in some cases, significantly exceed the equilibrium conversion expected in a tubular reactor operating at the same temperature and feed conditions. The dependence of product purity and conversion upon experimental conditions is investigated. A dispersionless, adsorption equilibrium model is presented for the two cases of a linear isotherm and a Langmuir isotherm. The trends of observed reactor behavior with changes in feed rate and feed position are satisfactorily accounted for by the models.
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