Raffinate hydroconversion process

Details Raffinate hydroconversion process Raffinate hydroconversion process

1998-02-13

1999-08-10

Bell, Mark L.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208119, 208123, 208124, 208302, 208 31, 208 35, 208 37, C10G 104, C10G 1102, C10G 7306, C10G 2500

Patent

active

059354160

ABSTRACT:
A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two-step, single-stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hydrofinishing step. The effluent from the cold hydrofinishing step is then catalytically dewaxed or in the alternative, solvent dewaxed followed by catalytic dewaxing.

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