Exxonmobil Research and Engineering Company

Eugenio Sanchez

Stephen Harold Brown

Kun Wang

Michel A Daage

Charles Lambert Baker, Jr

Angela Stefana Galiano-Roth

Beatrice Marie Gooding

James Thomas Carey

Frank C Wang

Frank Cheng-Yu Wang

David Alan Blain

Kristen Amanda Lyon

Liehpao O Farng

Ajit Bhaskar Dandekar

Alan Mark Schilowitz

Bradley R Fingland

Andrew Jackson

Roland Bernard Saeger

Peter Calcavecchio

Tracie L Owens

Bryan E Hagee

Nazeer A Bhore

Manuel Anthony Francisco

Yogi V Shukla

Michael R Douglass

Kathleen Kim Cooper

Phiroz M Bhagat

Andrew Kaldor

Cathleen Yung

Nilka Yajaira Leon

Arthur T Andrews

Oleg Yurievich Melnichenko

Richard W Grosser

Diane L Hymas

Medi M Hafez

Joan M Kaminski

Gretchen L Holtzer

Rugved Prakash Pathare

Liehpao Oscar Farng

Jr Charles L Baker

Roland B Saeger

Robert Charles William Welch

Jason Z Gao

Janet L Lane

A method of screening a hydrocarbon stream for potential toxicological hazards. The method involves providing a hydrocarbon stream; conducting 2-dimensional gas chromatography (2D-GC) analysis to quantify saturates and aromatic distribution in the hydrocarbon stream; identifying 2-8 ring aromatic distribution and weight percentage of 2-8 ring aromatic molecules in the hydrocarbon stream from the 2D-GC analysis; relating the weight percentage of 2-8 ring aromatic molecules in the hydrocarbon stream from the 2D-GC analysis to a mutagenicity index (MI), in which the MI is determined in accordance with ASTM Standard Method E 1687; and assessing a potential toxicological hazard of the hydrocarbon stream based on the weight percentage of 2-8 ring aromatic molecules in the hydrocarbon stream from the 2D-GC analysis and a MI threshold value. The 2-8 ring aromatic distribution preferably includes 3-6 ring aromatics, more preferably 3.5-5.5 ring aromatics. The 2-8 ring aromatic distribution includes mono alkylated and multi alkylated aromatic molecules.

Composition and method of screening hydrocarbons to limit potential toxicological hazards

Methods are provided for designing a blending component for making a plurality of lubricant products that contain the designed blending component. This can be accomplished by first determining a plurality of manufacturability index values for each desired lubricant product for a family of proposed blending components. The manufacturing index values can then be used to construct a manufacturability window for each lubricant product. The manufacturability windows for each lubricant product can then be analyzed to determine regions of overlap, if any, where a proposed blending component can be used with an increased likelihood to formulate each of the desired products. Alternatively, manufacturability windows can be used to determine suitability of pre-existing blending components for formulation of desired products.

Lubricant design manufacturability process

Provided are high viscosity high quality Group II lube base stocks with improved properties produced by an integrated hydrocracking and dewaxing process. In one form, the Group II lube base stock includes greater than or equal to 90 wt. % saturates, and less than 10 wt. % aromatics, and has an aromatic performance ratio between 1.0 and 5.0. Also provided are lubricant formulations including the high viscosity high quality Group II lube base stock.

High viscosity high quality group II lube base stocks

Provided are lube base stocks produced from renewable biological sources with improved low temperature properties. In one form, the lube base stock includes from 10 to 35 wt. % paraffins, 40 to 70 wt. % 1-ring naphthenes, and 0 to 40 wt. % combined 2-ring naphthenes and aromatics, and has a ratio of 1-ring naphthenes to paraffins from 1.8 to 5.0, and a Viscosity Index of from 100 to 160. The lube base stock has aC level ranging from 2 to 101% of the modern dayC level in the atmosphere, and yields a CCS ratio (Cold Crank Simulator (CCS) viscosity to the predicted CCS viscosity by Walther equation) of less than or equal to 0.85 at &#x2212;35&#xb0; C. The base stocks are useful as in formulated lubricant compositions requiring improved low temperature properties.

Lubricant base stocks from renewable sources with improved low temperature properties

Provided are lubricant compositions from renewable biological sources with improved properties and methods of making and using such compositions. In one form, the lubricant composition includes from 20 to 99.8 wt. % of a lube base stock produced from a renewable biological source and an effective amount of one or more lubricant additives. The lube base stock includes 10 to 35 wt. % paraffins, 40 to 70 wt. % 1-ring naphthenes, and 0 to 40 wt. % combined 2-ring naphthenes and aromatics, and has a ratio of 1-ring naphthenes to paraffins from 1.8 to 5.0, and a Viscosity Index of from 100 to 160. The lube base stock has aC level ranging from 2 to 101% of the modern dayC level in the atmosphere, and yields a CCS ratio of less than or equal to 0.85 at &#x2212;35&#xb0; C. The lubricant compositions exhibit improved solvency and % thickening when blended with a viscosity modifier.

Lubricant compositions from renewable base stocks with improved properties

Disclosed are compositions of a major amount of alkylated aromatics compounds, in particular alkylated naphthalene and alkylated benzene, optionally combined with API Group II, Group III, Group IV and/or ethylene copolymers, showing improved thermo-oxidation performance when containing an additive combination including an alkylated or non-alkylated diarylamine and a sulfur-containing metal passivator. Particularly, the lubricating compositions include at least 55 wt % of a base oil selected from the group consisting of alkylated naphthalene, alkylated benzene and combinations thereof, and from 0 wt % to 45 wt % of another base oil component. The ratio of amine component to sulfur component in the additive combination is from 1:1 to 20:1. The compositions contain an amount of base oil other than alkylated naphthalene, alkylated benzene and API Group II, Group III, Group IV and/or ethylene copolymers of less than 10 wt % based on the total weight of the components comprising the lubricating composition.

Antioxidant combination and synthetic base oils containing the same

A Group IV/Group V lubricating composition providing improved antioxidation performance comprises from 5 wt. % to 40 wt. % of a Group V base oil component, such as alkylated naphthalene, at least 30 wt. % of a Group IV base oil component, such as one or more polyalphaolefin base stocks, and from 0.25 wt. % to 1.5 wt. % of a trithiophosphate-containing compound. The trithiophosphate-containing compound is preferably CHOPS. The lubricating composition includes not greater than 5 wt. % of a Group I, Group II, or Group III base oil component, and, preferably not greater than 10 ppm heavy metal component. The lubricating composition preferably has a kinematic viscosity of from 20 cSt to 1,000 cSt at 40&#xb0; C. and a viscosity index (VI) of from 130 to 200.

Lubricant formulation with high oxidation performance

The present invention provides systems and methods for determining the viscosity of a lubricating fluid in a process on line. The method of the present invention obviates the need to accurately control the temperature of the lubricating fluid in the system when taking fluid viscosity measurements.

On-line absolute viscosity measurement system

The present invention is directed to a method that determines the necessary and sufficient tests to relate a variety of apparently non-related tests to desired final test results. The present invention also provides a method to determine those tests which, having been shown capable to be used in a high-throughput environment, are able to predict end-use qualification test results for lubricants, greases or industrial fluids. As a corollary, the present invention provides a method to select lubricant formulations and components based on apparently non-related, but predictive tests. In an applied example, the present invention is directed to a device and method that produces and evaluates formulated lubricants, functional fluids, and greases by determining previously unknown relationships between Intermediate Tests and End-use Tests.

Method to determine predictive tests and device applying same to lubricant formulations

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Pitman, NJ, United States of America

Eugenio Sanchez