Process for producing lube base oils of high viscosity index and

Details Process for producing lube base oils of high viscosity index and Process for producing lube base oils of high viscosity index and

1997-06-09

2000-08-15

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 27, 208 60, 208 61, 208 95, 208 96, C10G 6902

Patent

active

061031011

ABSTRACT:
A process is described for the hydroisomerization/hydrocracking of paraffinic streams to yield lube oils of viscosity index of at least 105 and pour point -6.degree. C. or less, whereby a paraffinic feed which is enriched in iso-paraffins is submitted to hydrogenation in a bed made up of HDM, HDT, HDI/HCC and HDF catalysts, the product oil is separated by distilling the light fractions eventually present and dewaxed to remove the non-reacted high melting point paraffins. Equally considered is a variation in the process whereby diesel oil of high cetane number is produced by recirculating the 370.degree. C.+ cut to the process feed.

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