Exxonmobil Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Anthony S Mennito

Teng Xu

David T Ferrughelli

Kuangnan Qian

Sheryl B Rubin-Pitel

Kapil Kandel

Frank Cheng-Yu Wang

Krystle J Emanuele

Kathleen E Edwards

Mohsen Shahmirzadi Yeganeh

Kenneth C H Kar

John Slocum Coleman

Glenn Allen Heeter

Roland Bernard Saeger

Howard J Freund

Shane Deighton

Daniel Patrick Cherney

Jessica L Vreeland

Howard Freund

Kenneth Chi Hang Kar

Aruna Mohan

Roland B Saeger

Kenneth CH Kar

Processes for improving hydrocarbon feedstock compatibility are provided. More specifically, a process for preparing a liquid hydrocarbon product includes heat soaking a tar stream to produce a reduced reactivity tar and blending the reduced reactivity tar with a utility fluid comprising recycle solvent to produce a lower viscosity, reduced reactivity tar. The process also includes hydroprocessing the lower viscosity, reduced reactivity tar at a temperature of greater than 350&#xb0; C. to produce a total liquids product containing the liquid hydrocarbon product and the recycle solvent. The process further includes separating the recycle solvent from the total liquids product, where the recycle solvent has the Sof greater than 110, and flowing the recycle solvent to the reduced reactivity tar for blending to produce the lower viscosity, reduced reactivity tar.

Process to maintain high solvency of recycle solvent during upgrading of steam cracked tar

Processes for preparing a low particulate liquid hydrocarbon product are provided and include blending a tar stream containing particles with a fluid and heating to a temperature of 250&#xb0; C. or greater to produce a fluid-feed mixture that contains tar, the particles, and the fluid. The fluid-feed mixture contains about 20 wt % or greater of the fluid, based on a combined weight of the tar stream and the fluid. Also, about 25 wt % to about 99 wt % of the particles in the tar stream are dissolved or decomposed when producing the fluid-feed mixture.

Solvent and temperature assisted dissolution of solids from steam cracked tar

A method for selective extraction of naphthenic acids from an acidic crude oil, including: providing an acidic crude oil including naphthenic acids and having a total acid number (TAN) greater than 0.4; mixing the acidic crude oil with a first aqueous solution including water and a weak base to extract a portion of naphthenic acids from the acidic crude oil thereby creating a second aqueous solution containing a mixture of the portion of naphthenic acids, the water and the weak base in an emulsion; separating the second aqueous solution from the emulsion; wherein the second aqueous solution contains an additional portion of the acidic crude oil; adding a salt to the second aqueous solution, thereby causing the additional portion of the acidic crude oil to separate from the second aqueous solution; removing the additional portion of the acidic crude oil from the second aqueous solution; and extracting the portion of the naphthenic acids from the second aqueous solution.

Method for selective extraction of surfactants from crude oil

Marine fuel oil compositions are provided that exhibit unexpectedly high cetane numbers after addition of a cetane improver. Methods of making such compositions are also provided. The unexpected nature of the marine fuel oil compositions is based in part on the ability to achieve a substantial improvement in estimated cetane number by addition of a cetane improver to a hydrocarbonaceous composition with a natural estimated cetane number of less than 35. These unexpectedly high increases in estimated cetane number for fuels or fuel blending components with low natural estimated cetane numbers can allow for production of fuel compositions with desirable combustion characteristics while also maintaining a higher level of aromatic compounds and/or reducing or minimizing the amount of distillate boiling range components in the fuel or fuel blending component.

Cetane improver in fuel oil

A first hydroprocessed product and a second hydroprocessed product produced from a multi-stage process for upgrading pyrolysis tar, such as steam cracker tar, are provided herein. Fuel blends including the first hydroprocessed product and/or the second hydroprocessed product are also provided herein as well as methods of lowering pour point of a gas oil using the first hydroprocessed product and the second hydroprocessed product.

Multi-stage upgrading pyrolysis tar products

A method to determine the model-of-composition of a vacuum resid in which the resid is separated into fractions including the DAO fraction which is then separated into chemical classes including saturates, aromatics, sulfides and polars by a combination of soft ionization methods. The results of the ionization analysis are reconciled with other analysis such as bulk analysis, then consolidated to generate the modeol-of composition.

Generation of model of composition of petroleum by high resolution mass spectrometry and associated analytics

A method for characterizing the saturates portion of a petroleum or hydrocarbon sample that includes compounds with boiling points of 1000&#xb0; F. (538&#xb0; C.) or higher includes use of laser desorption ionization (LDI) to desorb and vaporize petroleum saturates into the gas phase. After ionization, the saturate compounds cations can be detected using mass spectrometry. The mass spectrum generated from the ionized saturated compounds is then characterized by assigning molecular formulas to any 'detected' masses that exhibit a peak with an intensity greater than a defined signal to noise threshold. After making the molecular assignments, the abundance of each assigned molecule can be determined based on the signal magnitude of the peaks in the mass spectrum. The assigned molecules and the corresponding abundances can then be grouped based on a variety of factors.

Characterization of petroleum saturates

A method for the determination of the aromatic cores or building blocks of a vacuum resid by controlled fragmentation. Molecules can be generated from these building blocks.

Determination of cores or building blocks and reconstruction of parent molecules in heavy petroleums and other hydrocarbon resources

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Flemington, NJ, United States of America

Anthony S Mennito