Layered catalyst system for lube oil hydroconversion

Details Layered catalyst system for lube oil hydroconversion Layered catalyst system for lube oil hydroconversion

C - Chemistry, Metallurgy

10

G

C10G 65/14 (2006.01) C10G 45/02 (2006.01) C10G 45/44 (2006.01) C10G 45/64 (2006.01) C10G 47/02 (2006.01) C10G 65/12 (2006.01)

Patent

CA 2259539

The invention provides for a layered catalyst system to effectively optimize and tailor the hydrocarbon processing of a hydrocarbon stream to maximize yield in the creation of a lube oil base stock process. In particular, the invention includes the surprising discovery that a layer of a first catalyst can be placed in contact and on top of the isodewaxing catalyst layer to achieve higher yields, increased catalyst lifetime and avoid VI reduction.

L'invention concerne un système catalyseur à plusieurs couches permettant d'optimiser et d'adapter efficacement l'hydroconversion d'un courant d'hydrocarbures en vue d'augmenter les rendements dans un processus de fabrication d'une huile lubrifiante de base. L'invention concerne en particulier la découverte surprenante qu'une couche d'un premier catalyseur peut être placée en contact et au-dessus de la couche d'iso-déparaffinage d'un catalyseur pour obtenir des rendements plus élevés, augmenter la durée de vie du catalyseur et éviter une réduction de l'indice de viscosité.

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