Physical Chemistry Chemical Physics · 2009 · 11 citations · 24 references
Natural SciencesChemical EngineeringChemistryCatalysisMicrowave EngineeringSpectroscopyCatalytic MaterialsCatalytic Reaction EngineeringCatalytic Reaction KineticsCatalytic Reactor DesignInfrared SpectroscopyMicrowave SpectroscopyAluminaHeterogeneous Catalysis MechanismsMicrowave Irradiation EffectsMicrowave Reactor DesignMicrowave-assisted CatalysisReaction Engineering Of Catalytic ReactorsReaction Kinetics Under Microwave IrradiationSpectroscopic Diagnostics
An improved micro-reactor cell for IR spectroscopic studies of heterogeneous catalysis was built around a 5.8 GHz microwave cavity. The reactor can operate at 20 bars and with conventional heating up to 720 K, with reactant gas flows velocities (GHSV) from 25,000 to 50,000 h(-1). The temperature of the sample under microwave irradiation was measured by time resolved IR emission spectroscopy. The first experiment performed was the IR monitoring of the desorption of carbonates induced by irradiating an alumina sample by microwaves at 5.8 GHz.
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