Fitting Solid Sponges into a Reactor Tube Concerning the Partial Oxidation of o-Xylene as an ExampleSolid open-cell sponges, often denoted as foams in literature, are promising packing materials for applications in process engineering. Their structural properties lead to low pressure drop and enhanced heat and mass transport as compared to conventional packed beds. Over the past years, the potential advantages of these new structures have been the topic in numerous investigations. However, only a few publications mention or take into consideration how the sponge packings are fitted into the respective apparatus. Using solid sponges as catalyst supports in the partial oxidation of o-xylene, this present contribution demonstrates the impact of the fitting procedure of sponges on the resulting process behaviour such as conversion and heat transfer.
Process Intensification in the Gas Phase Conversion of Dimethyl Maleate to TetrahydrofuranApplication of a bifunctional Cu/ZnO/c-Al 2 O 3 catalyst enables the conversion of dimethyl maleate (DMM) to tetrahydrofuran (THF), which usually is carried out as multi-stage process, in a single fixed-bed reactor at 100 % THF yield. The spacetime yield of THF is almost unaffected by the H 2 /DMM feed ratio but can be enhanced considerably by raising the total pressure and, in particular, the reaction temperature.
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