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High‐Pressure High‐Temperature Transparent Fixed‐Bed Reactor for Operando Gas‐Liquid Reaction Follow‐up
Author(s) -
De Sousa Duarte Marisa,
Rolland Matthieu,
Sagnard Corinne,
Suire Didier,
Flacher Frederic,
Delpoux Olivier,
Lienemann Charles P.
Publication year - 2019
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800090
Subject(s) - sulfidation , hydrodesulfurization , catalysis , materials science , raman spectroscopy , diesel fuel , oxidizing agent , analytical chemistry (journal) , microreactor , coke , chemical engineering , chemistry , metallurgy , sulfur , chromatography , optics , organic chemistry , physics , engineering
Abstract A 3‐MPa, 350 °C fixed‐bed reactor was 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 was validated by performing diesel hydrodesulfurization 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.