Characterization Of Catalysts Via Thermo-Programmed Techniques

By Simon Yunes, Andrew D’Amico, and Jason Exley

The PID EFFI (Efficiency) microactivity reactor can be re-­‐configured and connected to a mass spectrometer for temperature-­‐programmed and Pulse chemisorption techniques used to characterize and test catalysts In situ. This innovative research tool, known as the “Micro Catalyst Characterization and Testing Center” (MCCTC), allows for multiple catalyst Characterization experiments and activity testing at pressures ranging From atmospheric up to 100 bar or 200 bar (depending on instrument configuration). Characterization techniques including temperature-­‐programmed reduction, oxidation, and desorption can be used as a point of reference prior to testing the performance of the catalyst. The capability to then follow the transient activity of the catalyst on-­‐line provides important information about the behavior of the catalyst’s active life and deactivation. Re-­‐ haracterization of the catalyst after activity testing provides critical information about the parameters which potentially cause loss in activity of the catalyst. The combination of characterization and performance testing in a single apparatus provides important and accurate information about catalytic behavior for specific applications.