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Neutron Insights into Sorption Enhanced Methanol Catalysis

Sorption enhanced methanol production makes use of the equilibrium shift of the [Formula: see text] hydrogenation reaction towards the desired products. However, the increased complexity of the catalyst system leads to additional reactions and thus side products such as dimethyl ether, and complicat...

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Detalles Bibliográficos
Autores principales: Nikolic, Marin, Daemen, Luke, Ramirez-Cuesta, Anibal J., Xicohtencatl, Rafael Balderas, Cheng, Yongqiang, Putnam, Seth T., Stadie, Nicholas P., Liu, Xiaochun, Terreni, Jasmin, Borgschulte, Andreas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8549940/
https://www.ncbi.nlm.nih.gov/pubmed/34720545
http://dx.doi.org/10.1007/s11244-021-01461-w
Descripción
Sumario:Sorption enhanced methanol production makes use of the equilibrium shift of the [Formula: see text] hydrogenation reaction towards the desired products. However, the increased complexity of the catalyst system leads to additional reactions and thus side products such as dimethyl ether, and complicates the analysis of the reaction mechanism. On the other hand, the unusually high concentration of intermediates and products in the sorbent facilitates the use of inelastic neutron scattering (INS) spectroscopy. Despite being a post-mortem method, the INS data revealed the change of the reaction path during sorption catalysis. Concretely, the experiments indicate that the varying water partial pressure due to the adsorption saturation of the zeolite sorbent influences the progress of the reaction steps in which water is involved. Experiments with model catalysts support the INS findings.