C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 47/18 (2006.01) C10G 45/64 (2006.01) C10G 69/02 (2006.01) C10G 71/00 (2006.01) C10G 73/44 (2006.01)
Patent
CA 2399616
The present invention is a process for producing a high viscosity index and low pour point lubricating oil base stock which comprises catalytically converting a hydrotreated hydrocarbon lube oil feedstock containing waxy paraffins in the presence of hydrogen and in the presence of a low acidity ZSM-5 catalyst having a highly dispersed noble metal component. The ZSM-5 catalyst is subjected to controlled acidity reduction to an alpha value below 15 prior to incorporation of the noble metal component.
L'invention concerne un procédé de production d'huile de base lubrifiante à indice de viscosité élevé et point d'écoulement bas, qui comporte une étape de transformation catalytique d'une huile lubrifiante d'hydrocarbure hydrotraité contenant des paraffines en présence d'hydrogène et d'un catalyseur ZSM-5 à acidité faible contenant un composant métallique noble hautement dispersé. Le catalyseur ZSM-5 est soumis à une réduction d'acidité contrôlée à une valeur alpha inférieure à 15, avant l'incorporation du composant métallique noble.
Dougherty Richard C.
Mazzone Dominick N.
Socha Richard F.
Timkin Hye Kyung Cho
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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