Search for dissertations about: "acetylene hydrogenation"
Showing result 1 - 5 of 9 swedish dissertations containing the words acetylene hydrogenation.
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1. Catalyst Deactivation by Coke Formation in Acetylene Hydrogenation
Abstract : Several aspects of catalyst deactivation have been studied with reference toselective acetylene hydrogenation, a reaction used industrially to purify ethylene from unwanted acetylene. A mathematical model has been developed for an industrial packed-bed reactor, employing a supported Pd catalyst. READ MORE
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2. Influence of cross-desorption during hydrogenation at transient conditions
Abstract : .... READ MORE
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3. Coke on Supported Palladium and Platinum Catalysts
Abstract : Catalyst deactivation by coke formation has been investigated in three heterogeneous catalytic processes, propane dehydrogenation, acetylene hydrogenation and hydrogenation of vegetable oil. Palladium and/or platinum supported on alumina were used as catalysts in all reactions. READ MORE
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4. Monolith Reactors in Three-Phase Processes
Abstract : The use of monoliths in chemical processes has been studied with the emphasis on liquid-phase hydrogenations. A monolithic catalyst consists of many narrow, parallel channels with catalytically active species either incorporated into the wall itself or into a layer of a porous oxide deposited on the wall (a washcoat). READ MORE
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5. Kinetics of Nanoparticle Catalysis from First Principles
Abstract : Modern society depends heavily on heterogeneous catalysis, which creates strong economical and environmental incentives to improve catalyst efficiency. Heterogeneous catalysts are often realized as metal nanoparticles (NPs) supported on oxide surfaces, and catalysts are traditionally developed by trial and error approaches. READ MORE