Process to prepare a lubricating base oil and a gas oil

Details Process to prepare a lubricating base oil and a gas oil Process to prepare a lubricating base oil and a gas oil

C - Chemistry, Metallurgy

10

G

C10G 65/12 (2006.01) C10G 2/00 (2006.01) C10G 45/58 (2006.01) C10G 65/04 (2006.01) C10G 65/10 (2006.01) C10G 67/04 (2006.01) C10M 101/02 (2006.01) C10M 107/02 (2006.01) C10M 169/04 (2006.01) C10M 171/02 (2006.01)

Patent

CA 2440053

Process to prepare a lubricating base oil and a gas oil by (a) hydrocracking/hydroisomerisating a Fischer-Tropsch product, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2 and wherein at least 30 wt% of compounds in the Fischer-Tropsch product have at least 30 carbon atoms, (b) separating the product of step (a) into one or more gas oil fractions, a base oil precursor fraction and a higher boiling fraction, and (c) performing a pour point reducing step to the base oil precursor fraction obtained in step (b).

L'invention concerne un procédé de préparation d'une huile de base lubrifiante et de gazole consistant a) à effectuer l'hydrocraquage/hydroisomérisation d'un produit Fischer-Tropsch, le coefficient de poids des composés contenant au moins 60 atomes de carbone ou plus et des composés contenant au moins 30 atomes de carbone dans le produit Fischer-Tropsch étant d'au moins 0,2, et 30 % en poids au moins des composés du produit Fischer-Tropsch contenant au moins 30 atomes de carbone, (b) à séparer le produit de l'étape (a) en une ou plusieurs fractions de gazole, une fraction précurseur d'huile de base et une fraction à cuisson plus élevée, et (c) à effectuer une étape de réduction du point d'écoulement sur la fraction précurseur d'huile de base obtenue dans l'étape (b).

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