Lubricating base oil preparation process

Details Lubricating base oil preparation process Lubricating base oil preparation process

C - Chemistry, Metallurgy

10

G

C10G 45/60 (2006.01) B01J 23/28 (2006.01) B01J 23/30 (2006.01) B01J 23/42 (2006.01) B01J 23/44 (2006.01) B01J 23/46 (2006.01) B01J 23/745 (2006.01) B01J 23/75 (2006.01) B01J 23/755 (2006.01) C10G 2/00 (2006.01) C10G 45/64 (2006.01) C10G 65/04 (2006.01) C10G 69/04 (2006.01) C10M 101/02 (2006.01) C10M 159/12 (2006.01) C07B 61/00 (2006.01) C10G 35/04 (2006.01) C10G 45/34 (2006.01) C10G 47/12 (2006.01) C10G 71/00 (2006.01) C10G 73/08 (2006.01) C10G 73/44 (2006.01)

Patent

CA 2141925

A process for the preparation of lubricating base oils comprising subjecting a waxy raffinate to a pour point reducing treatment, and recovering lubricating base oil therefrom, which waxy raffinate has been prepared by contacting a hydrocarbon product with hydrogen in the presence of a hydroconversion catalyst, comprising a catalytically active metal having hydrogenation/dehydrogenation activity supported on a refractory oxide carrier, under conditions such that hydrocracking and hydroisomerisation of the hydrocarbon product occur to yield the waxy raffinate, wherein the hydrocarbon product has been prepared by: (a) contacting a mixture of carbon monoxide and hydrogen with a hydrocarbon synthesis catalyst at elevated temperature and pressure to prepare a substantially paraffinic hydrocarbon wax; and (b) contacting the hydrocarbon wax so-obtained with hydrogen in the presence of a hydrogenation catalyst under conditions such that substantially no isomerisation or hydrocracking of the hydrocarbon wax occurs to yield the hydrocarbon product.

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