High-Pressure High-Temperature Transparent Fixed-Bed Reactor for Operando Gas-Liquid Reaction Follow-up

Abstract : A 3 MPa, 350 °C fixed bed reactor has been designed to follow-up gas-liquid-solid reactions on a millimetric size heterogeneous catalyst with Raman spectroscopy. The transparent reactor is a quartz cylinder enclosed in a joule effect heated stainless steel tube. A methodology to determine how to focus the microscope for liquid and solid phase characterization is presented. The setup has been validated by performing diesel hydrodesulphurisation on a CoMo/Alumina extrudate catalyst with a conversion very close to expected values along with the acquisition of Raman spectra of the solid catalyst showing an evolution of the catalyst phase during sulfidation.
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Marisa de Sousa Duarte, Matthieu Rolland, Corinne Sagnard, Didier Suire, Frederic Flacher, et al.. High-Pressure High-Temperature Transparent Fixed-Bed Reactor for Operando Gas-Liquid Reaction Follow-up. Chemical Engineering and Technology, Wiley-VCH Verlag, 2019, 42 (3), pp.655-660. ⟨10.1002/ceat.201800090⟩. ⟨hal-02061906⟩

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