Process for the preparation of a lubricant
AssigneeShell Oil Company
InventorsGerard Benard, Eric Duprey, Patrick Moureaux, Johannes Antonius Van Veen
Life of this patent
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AssigneeShell Oil Company
InventorsGerard Benard, Eric Duprey, Patrick Moureaux, Johannes Antonius Van Veen
Estimating the term…
Process to prepare a lubricant having a dynamic viscosity at −35° C. of below 5000 cP by performing the following steps: a) contacting a feed containing more than 50 wt % wax in the presence of hydrogen with a catalyst comprising a Group VIII metal component supported on a refractory oxide carrier, and b) contacting the effluent of step (a) with a catalyst composition comprising a noble Group VIII metal, a binder and zeolite crystallites of the MTW type to obtain a product having a lower pour point than the effluent of step (b) and having a viscosity index greater than 120, and (c) adding a pour point depressant additive to the base oil as obtained in step (b).
A process to prepare a lubricant having a dynamic viscosity at −35° C. of below 5000 cP by performing the following steps:
Dependencies are inferred from the claim text.