Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst



Título del documento: Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000308723
ISSN: 0104-6632
Autores: 1
2
Instituciones: 1Universidade Federal da Paraiba, Centro de Ciencias e Tecnologia, Campina Grande, Paraiba. Brasil
2Universite de Poitiers, Laboratoire de Catalyse en Chimie Organique, Poitiers, Vienne. Francia
Año:
Periodo: Mar
Volumen: 17
Número: 1
Paginación: 99-103
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés After steaming at 530° C for 30 minutes and for 6 hours, a Ga/HZSM5 catalyst was characterized by three model reactions (meta-xylene isomerization, propane aromatization and methylcyclohexane transformation). The activity and selectivity of this catalyst were compared to those of a fresh Ga/HZSM5 catalyst. It was demonstrated that hydrothermal treatment provokes a significant decrease in the dehydrogenation activity of the gallium species and a small decrease in the protonic acidity of the catalyst
Disciplinas: Química
Palabras clave: Ingeniería química,
Catalizadores,
Zeolitas,
Galio,
Propano,
Desactivación por vapor
Keyword: Chemistry,
Chemical engineering,
Catalysts,
Zeolites,
Gallium,
Propane,
Steaming deactivation
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