Artículo
Deactivation and regeneration dynamics in hierarchical zeolites: Coke characterization and impact on catalytic cracking of vacuum gas oil
Fals Guerra, Jayson
; Ospina Castro, María L.; Ramos Hernandez, Andrea; Pacheco Londoño, Leonardo; Bocanegra, Sonia Alejandra


Fecha de publicación:
09/2024
Editorial:
Elsevier
Revista:
Heliyon
ISSN:
2405-8440
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This study investigated the deactivation and regeneration of hierarchical zeolites in vacuum gasoil conversion, aiming to reach the equilibrium state seen in fluidized bed catalytic cracking(FCC). The research utilized various characterization techniques to analyze the properties ofzeolites before and after coking and regeneration. Zeolite Y-0.20-S was found to have the highestgasoline selectivity and quality, mirroring industrial yields, and displayed notable stability acrossdeactivation/regeneration cycles. Higher mesopore concentration in zeolites led to increased cokeselectivity and better resistance to deactivation. The study observed a dominance of aromaticcoke with a higher degree of condensation in these zeolites. Despite coke deposition affecting acidand textural properties, the regeneration process effectively restored these characteristics,proving its efficiency. The zeolites with greater mesoporosity retained their fundamental properties responsible for activity and selectivity, highlighting the importance of selecting materialsthat provide high conversions and maintain stability and product selectivity over multiple cycles.The Y-0.20-S zeolite, in particular, was identified as a promising candidate for commercialcatalyst development for gasoline production, contributing to the FCC process’s energy efficiency.
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Articulos(INCAPE)
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Citación
Fals Guerra, Jayson; Ospina Castro, María L.; Ramos Hernandez, Andrea; Pacheco Londoño, Leonardo; Bocanegra, Sonia Alejandra; Deactivation and regeneration dynamics in hierarchical zeolites: Coke characterization and impact on catalytic cracking of vacuum gas oil; Elsevier; Heliyon; 10; 18; 9-2024; 1-16
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