Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Joseph P Boyle

Keith K Aldous

Jacob Ben Angelo

William C Baird, Jr

George A Swan, Iii

Ian A Cody

William John Murphy

Sylvain S Hantzer

Jeenok Theresa Kim

Christopher J May

John E Gallagher

Anne M Zinicola

Wayne E Hanson

Bruce M Jarnot

John A Groestch

Shun Chong Fung

Alan Roy Katritzky

Gary Paul Schleicher

Michael B Carroll

William E Gates

William J Murphy

John L Robbins

Elise Marucchi-Soos

Ashok Uppal

Adrianus Welmers

Eduardo Mon

Ming Chow

Raymond W Saunders

Gordon C Camano

Michael B Davis

David C Hager

Howard R Lingley

Randall S Lachine

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 process for upgrading oil feedstock wherein the feedstock is hydrotreated, hydrocracked, and flashed and/or distilled. The bottoms are then vacuum distilled to adjust viscosity and volatility. The refined feed is then extracted, dewaxed, and cascaded to a hydrofinishing step, where it is contacted with a catalyst having a metal hydrogenation function in order to produce lubricant products.

Integrated lubricant upgrading process

A process for upgrading a hydrocarbon oil is provided which comprises introducing the oil and an aromatic extraction solvent containing 0.1 to 10 vol % water into an extraction zone for contact of the oil and solvent therein whereby an extract solution is formed; and injecting water into the extraction zone at a point below that at which the extraction solvent is introduced. The injected water is injected substantially countercurrent to the extraction solvent at a velocity of about 0.5 to 3 ft/sec in an amount ranging from about 0.1 to about 10 LV% based on the amount of extract solution being processed.

Process for solvent extraction of hydrocarbons providing an increased yield of raffinate

A method for removing corrosive contaminants from a polar extraction solvent comprises adding water to the solvent to provide a mixture. Then the mixture is contacted with a basic ion exchanger resin to remove the corrosive contaminants. The solvent is recovered and may be reused.

Ion exchange treatment of extraction solvent to remove acid contaminants

A method for producing a process oil in which a naphthenic rich distillate is processed through a single hydrotreating stage, the hydrotreated distillate is then solvent extracted to yield a process oil which passes IP-346 and AMES screening test.

Process for manufacturing improved process oils using extraction of

A method for producing a process oil is provided in which an aromatic extract oil is added to a paraffinic rich feed to provide a blended feed. The blended feed is then extracted with an aromatic extraction solvent to yield a raffinate which subsequently is hydrotreated to provide a process oil.

Method for making a process oil by using aromatic enrichment with

A method for producing a process oil is provided in which an aromatic extract oil is added to a paraffinic rich feed to provide a blended feed. The blended feed is then hydrotreated in a first hydrotreating stage to convert at least a portion of sulfur and nitrogen in the feed to hydrogen sulfide and ammonia. After stripping, the feed is subjected to a second hydrotreating stage to provide a process oil.

Method for making a process oil by using aromatic enrichment and two

A method for producing a process oil is provided in which a napthenic rich feed is enriched with an aromatic extract oil. The enriched feed is then subjected to a solvent extraction thereby providing a process oil.

Method for manufacturing a process oil with improved solvency

A method for producing a process oil is provided in which an aromatic extract oil is added to a napthenic rich feed. The combined feed is then hydrotreated in a first hydrotreating stage to convert at least a portion of sulfur and nitrogen in the feed to hydrogen sulfide and ammonia. After stripping the feed is subjected to a second hydrotreating stage to provide a process oil.

Process oils and manufacturing process for such using aromatic

A method for producing a process oil is provided in which an aromatic extract oil is added to a naphthenic rich feed to provide a blended feed. The blended feed is then extracted with an aromatic extract solvent to yield a raffinate which subsequently is hydrotreated to provide a process oil.

The present invention is directed to an improved selective solvent extraction process wherein a hydrocarbon feed stream containing a mixture of aromatics and non-aromatics is contacted with an aromatics selective solvent in an extraction zone to produce an aromatics rich extract phase and an aromatics lean raffinate phase, water in a carefully controlled amount is added to the recovered extract phase resulting in the separation of the extract phase into a hydrocarbon rich pseudo-raffinate which is recycled to the extraction zone for processing with fresh feed and an increased yield of raffinate of higher quality than is obtained without pseudo-raffinate recycle.

Solvent extraction of hydrocarbon oils producing an increased yield of

The presence of carryunder in the extract phase recovered from a solvent extraction tower is an indication of unsatisfactory performance. The continuous analysis of the extract phase using a turbidity analyzer to detect the presence of two phases, indicating carryunder permits corrective measures to be taken in tower operation to reduce or eliminate carryunder.

On-line analysis for continuous measurement of presence of carryunder in

An alkylation process which utilizes a solid alkylation catalyst is disclosed. The catalyst, which has carbonaceous material adsorbed thereto, is regenerated by reacting the adsorbed carbonaceous material. The reaction step is accomplished by heating the catalyst in the presence of ozone to form an ozonated hydrocarbon, wherein the ozonated hydrocarbon includes carbonyl carbons. The ozonated hydrocarbon is removed by desorbing the carbonyl carbons from the solid alkylation catalyst. The carbonaceous material is preferably reacted at a temperature ranging from about 20.degree. C. to 200.degree. C. The ozone is preferably in a gaseous stream at a concentration ranging from about 1 to 50 volume percent. The carbonyl components are preferably desorbed from the heated alkylation catalyst by sweeping the catalyst with a desorption fluid.

Heterogeneous alkylation and regeneration of alkylation catalysts

Catalytic reforming wherein the lead reactor contains a catalyst comprised of platinum and a relatively low level of Re on an inorganic oxide support. The tail reactor contains a tin modified platinum-iridium catalyst wherein the metals are substantially uniformly dispersed throughout the inorganic oxide support.

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Baton Rouge, LA, United States of America

Joseph P Boyle