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AssigneeExxonMobil Technology and Engineering Company
InventorsWilliam J. Knaeble, Scott J. Weigel, Preeti Kamakoti
Estimating the term…
Provided herein are catalysts for dewaxing of a feedstock, the catalyst comprising between about 40 wt. % and about 99.9 wt. % zeolite, between about 0 wt. % and about 40 wt. % binder and at least about 0.1 wt. % noble metal, as well as catalyst systems, methods and products produced using the catalysts. The zeolite having a crystal comprising a largest included sphere less than or equal to about 7.5 angstroms, a largest diffusing sphere greater than or equal to about 5.0 angstroms, and a silica to alumina ratio greater than or equal to about 100:1. The catalyst having a temperature-programmed ammonia desorption (“TPAD”) of less than about 0.25 mmol/g.
A catalyst useful for dewaxing of a feedstock comprising:
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A catalyst system for dewaxing a feedstock to produce a base stock comprising a catalyst bed having two or more separate regions in a stacked configuration, wherein the two or more separate regions comprise a first region and a second region, the first region comprising one or more of the catalysts of any one of the preceding claims, the second region comprising a catalyst having between about 40 wt. % and about 99.9 wt. % zeolite comprising a crystal having 11 ring members (11 MR) or less, a medium pore size, and a silica alumina ratio greater than or equal to about 50, the first region and the second region are in fluidic communication providing a fluidic pathway of a composition from the first region to the second region.
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Dependencies are inferred from the claim text.