C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 65/04 (2006.01) C10G 45/02 (2006.01) C10G 71/00 (2006.01) C10M 101/00 (2006.01) C10M 101/02 (2006.01) C07C 5/13 (2006.01)
Patent
CA 2320113
A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt.% or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerized under conditions to 370 °C, hydrocatalytically dewaxed with a catalyst comprising a mixture of a catalytically active metal on a zeolite dewaxing catalyst and an amorphous catalyst, or alternatively is solvent dewaxed and then hydrocatalytically dewaxed with the just described catalyst.
L'invention concerne un procédé de production d'une matière de base de lubrifiant à partir d'une charge d'alimentation paraffinée, la charge d'alimentation contenant 50 % ou plus en poids de paraffine hydrotraitée et purifiée de manière à réduire sa teneur en azote et en soufre. Cette charge d'alimentation est ensuite hydroisomérisée dans des conditions jusqu'à 370 DEG C, déparaffinée hydrocatalitiquement avec un catalyseur qui comprend un mélange d'un métal catalitiquement actif sur un catalyseur de déparaffinage au zéolite et un catalyseur amorphe, ou déparaffinée au solvant, puis déparaffinée hydrocatalitiquement avec le catalyseur susmentionné.
Cody Ian Alfred
Murphy William John
Silbernagel Bernard George
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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