Exxonmobil Research and Engineering Company

Anne M Zinicola

Ian A Cody

William John Murphy

Sylvain S Hantzer

Joseph P Boyle

Jeenok Theresa Kim

Christopher J May

John E Gallagher

John A Groestch

Christopher J S Kent

A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone, and a lubricating oil basestock produced by said process.

Hydroconversion process for making lubricating oil basestockes

A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. 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.

Reffinate hydroconversion process

A method for concentrating the amount of alkylated mono-aromatics in a lubricating oil feedstock useful as a feedstock for sulfonation. The method comprises extracting a feedstock rich in aromatics with a solvent selected from NMP, phenol and furfural, said feedstock containing sufficient water to provide a raffinate having a target VI between about 86 and 97 under extraction conditions of treat and temperature selected to achieve the target VI. The raffinate is then hydrofmed and solvent dewaxed.

Selective extraction using mixed solvent system

Growing community of inventors

Houston, TX, United States of America

Anne M Zinicola