Development of a high throughput environment for the optimization of process parameters for the solvothermal synthesis of isomerization catalysts

Abstract

A completely parallelized workflow for the solvothermal synthesis of potential isomerization catalysts has been developed. With design of experiment methodologies, the influence of the process parameters such as water content, detergent type and concentration, synthesis temperature and shaking of the reaction mixture has been studied. The catalyst porosity was tested in high throughput by monitoring the heat of adsorption of probe molecules with emissivity corrected infrared thermography (EC-IRT). The potential of the optimized materials was tested in a conventional plug-flow reactor with the isomerization of 4-Methyl-1-pentene as test reaction. In this study, two new isomerization catalysts have been identified, which are highly porous and outperform the reference zeolites Mordenite and Na-Y at the conditions studied. 

Infrared Thermography as a High-Throughput Tool in Catalysis Research

“…The six images from upper left to bottom right show an absorption, which is so intense, that the gas flowing from the inlets on the outer reactor wall to the outlet at the center of the library is completely depleted of NH 3 (see also under shadow effect). Therefore the catalysts in the middle can only start to absorb when the outer catalysts are already ammonia-saturated …”

“…Therefore the catalysts in the middle can only start to absorb when the outer catalysts are already ammonia-saturated. 41 Side Reactions. Two main types of side reactions may occur during a gas phase experiment.…”

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