Integrated lubricant upgrading process

Details Integrated lubricant upgrading process Integrated lubricant upgrading process

C - Chemistry, Metallurgy

10

G

C10G 69/02 (2006.01) C10G 45/00 (2006.01) C10G 47/02 (2006.01) C10G 65/02 (2006.01) C10G 65/12 (2006.01)

Patent

CA 2425899

An oil feedstock (6) is upgraded by hydrocracking and flashing and/or distilling. A distillate fraction (46) boiling in the diesel range is isolated and dewaxed under high pressure by a medium pore molecular sieve. The dewaxed material is then cascaded to a hydrofinishing step, where it is contacted with an aromatics saturation catalyst having a metal hydrogenation function in order to produce diesel fuels having low aromatics content.

La présente invention concerne une charge de départ (6) d'huile valorisée par hydrocraquage et vaporisation instantanée et/ou distillation. Une fraction distillée (46) en ébullition dans la plage du diesel est isolée et déparaffinée sous haute pression par l'intermédiaire d'un tamis moléculaire à pore moyen. La matière déparaffinée est ensuite amenée en cascade vers une étape d'hydrofinissage, où elle entre en contact avec un catalyseur de saturation d'aromatiques possédant une fonction d'hydrogénation du métal de manière à produire des carburants diesel à faible teneur en aromatiques.

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