6533b858fe1ef96bd12b5a0c
RESEARCH PRODUCT
Mild Hydrocracking of Vacuum Gasoil over NiMo-Beta Zeolite Catalysts: The Role of the Location of the NiMo Phases and the Crystallite Size of the Zeolite
A. CormaSusana ValenciaAgustín MartínezMiguel A. CamblorV. Martínez-soriasubject
Chemical engineeringTransition metalNanocrystalChemistryVacuum distillationInorganic chemistryCrystallitePhysical and Theoretical ChemistryMolecular sieveHeterogeneous catalysisZeoliteCatalysisCatalysisdescription
Abstract Mild hydrocracking composite catalysts based on NiMo/γ-Al2O3-Beta zeolite have been prepared and the influence of the location of the NiMo phases has been studied. A good hydrocracking activity and the highest HDS conversion was found during the hydrocracking of a vacuum gasoil with the composite catalyst where the NiMo is located on the alumina component and then mixed with the zeolite in a proportion of 1 : 1 by weight. The crystal size of the beta zeolite had a significative influence on the catalytic behaviour, being better the smaller the crystallite size is. The small crystallite beta-based catalyst displayed a higher hydrocracking activity than conventional USY and silica-alumina-based catalysts, giving a good selectivity towards middle distillates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-10-01 | Journal of Catalysis |