Catalyst decay by simultaneous sintering and poisoning: effects of intraparticle and interfacial gradients

The influence of internal and interfacial diffusion on catalyst deactivation by simultaneous sintering and poisoning is examined. The study focuses on the copper catalyst used in the water gas shift reaction (WGSR). It is found that catalyst life increases when internal and external poison diffusion...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Chocron, M., Amadeo, N., Laborde, M.
Formato: SER
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01672991_v111_n_p311_Chocron
Aporte de:
Descripción
Sumario:The influence of internal and interfacial diffusion on catalyst deactivation by simultaneous sintering and poisoning is examined. The study focuses on the copper catalyst used in the water gas shift reaction (WGSR). It is found that catalyst life increases when internal and external poison diffusional resistance increases. Temperature reduces the total average activity but this effect is partially neutralized by the diffusional effects undergone by the reactants inside the pellet. © 1997 Elsevier Science B. V. All rights reserved.