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AIChE Annual Meeting
2023
2023 AIChE Annual Meeting
Pharmaceutical Discovery, Development and Manufacturing Forum
Computational solid state pharmaceutics
Thursday, November 9, 2023 - 8:45am to 9:06am
In this study, a catalyst bead of Ni/Mg/Ce metal oxide composite with a hierarchical porous structure was developed. The as-prepared catalysts were applied for the DRM reaction by adjusting the support component ratio. The optimized catalyst was tested for stability at 750â for 110 hours to evaluate its reaction stability and pressure drop mitigation.
The physicochemical characteristics of the catalyst were analyzed using H2-TPR, XPS, HR-TEM with EDS, and XRD to identify the formation of a Ni/Mg/Ce solid solution, inducing SMSI with well-distributed Ni particles under 20 nm and sufficient surface oxygen for enhanced carbon oxidation. The physical and carbon analysis of the catalyst was performed using FE-SEM with EDS, TGA, and Raman, revealing the distinct carbon generation and unique catalyst surface reconstruction behavior of the hierarchical porous structure.
The optimized Ni/Mg/Ce catalyst with a hierarchical porous structure demonstrated enhanced reaction stability and pressure drop mitigation, supported by its free volume and dense-shell structure. The findings suggest potential for the optimized catalyst in industrial-scale DRM and other high-temperature reactions.