Hydrocarbon conversion catalyst composition
AssigneeShell Oil Company
InventorsLászló DOMOKOS, Laurent Georges HUVE, Hermanus JONGKIND, Aan Hendrik KLAZINGA, Marcello Stefano RIGUTTO
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Abstract
A hydrocarbon conversion catalyst composition which comprises ZSM-48 and/or EU-2 zeolite particles and refractory oxide binder essentially free of alumina in which the average aluminium concentration of the ZSM-48 and/or EU-2 zeolite particles is at least 1.3 times the aluminium concentration at the surface of the particles, processes for preparing such catalyst compositions and processes for converting hydrocarbon feedstock with the help of such compositions.
Claims14
A process for preparing a hydrocarbon conversion catalyst composition, wherein said process comprises:
- preparing an extrudable mass, comprising a silica binder essentially free of alumina and ZSM-48 and/or EU-2 zeolite particles having a bulk silica-to-alumina molar ratio (SAR) of at least 150 and at most 210 and present in an amount to provide a zeolite content of said hydrocarbon conversion catalyst composition of at least 20 wt % and at most 70 wt %;
- extruding said extrudable mass into extrudates;
- drying and calcining said extrudates to provide calcined extrudates;
- dealuminating said calcined extrudates by contacting said calcined extrudates with a solution of a fluor containing salt to provide a dealuminated extrudate;
- and
- incorporating into said dealuminated extrudate a catalytic metal selected from the group consisting of platinum, palladium, and nickel.
Dependencies are inferred from the claim text.