Exxonmobil Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Steven Webster Levine

Glen Barry Brons

Clifford C Walters

Hong Cheng

Mohsen N Harandi

James Richardson Lattner

Patrick Brant

Stuart Leon Soled

Stephen Harold Brown

Donna Jean Crowther

Kun Wang

Daniel Paul Leta

Ian A Cody

Ramesh Gupta

Jane C Cheng

Lei Zhang

Chuansheng Bai

Walter Weissman

Mohsen Shahmirzadi Yeganeh

Man Kit Ng

David C Dankworth

Lorenzo C DeCaul

Eric Bart Sirota

Benjamin S Umansky

Himanshu Gupta

Helge Jaensch

Robert J Falkiner

Richard Charles Dougherty

Juan D Henao

Eric D Joseck

Tahmid I Mizan

Manuel Anthony Francisco

Ali A Kheir

Thomas Francis Degnan, Jr

George A Lutz

Peter W Jacobs

Liezhong Gong

Etienne Mazoyer

Helen S Wellons

Sharon Feiller

Corry S Powers

Todd P Marut

Kevin Mallory

Cindy J Hughart

John D Nelson

Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating isooctane to produce neopentane. The isooctane may be provided by the alkylation of isobutane with butylenes.

Production of neopentane

Systems and methods are provided for hydroconversion of a heavy oil feed under slurry hydroprocessing conditions and/or solvent assisted hydroprocessing conditions. The systems and methods for slurry hydroconversion can include the use of a configuration that can allow for improved separation of catalyst particles from the slurry hydroprocessing effluent. In addition to allowing for improved catalyst recycle, an amount of fines in the slurry hydroconversion effluent can be reduced or minimized. This can facilitate further processing or handling of any 'pitch' generated during the slurry hydroconversion. The systems and methods for solvent assisted hydroprocessing can include processing of a heavy oil feed in conjunction with a high solvency dispersive power crude.

Processing of heavy hydrocarbon feeds

Methods are provided for characterizing crude oils, crude fractions, or other potential feedstocks for forming lubricating base oils in order to determine the suitability of a feedstock for lubricating base oil production. One type of characterization is to determine the isoparaffin, naphthene, and/or aromatics contents of the distillate portion of a feedstock. A second characterization is to determine the viscosity index of a distillate portion of a feedstock after dewaxing the distillate portion to a target pour point.

Evaluation of distillate composition of a crude

The present invention provides a method for reducing fouling, including particulate-induced fouling, in a hydrocarbon refining process including the steps of providing a crude hydrocarbon for a refining process and adding an antifouling agent containing a polymer base unit and a polyamine group to the crude hydrocarbon. The antifouling agent can be obtained by reacting an epoxidation reagent with a vinyl-terminated polymer, such as polypropylene or poly(ethylene-co-propylene), to form a terminal epoxy group, followed by reacting a polyamine with the epoxy group.

Polyalkylene epoxy polyamine additives for fouling mitigation in hydrocarbon refining processes

The present invention relates to methods and systems for removing polar molecule contaminants from a refinery stream in connection with the processing of hydrocarbon fluids, chemicals, whole crude oils, blends and fractions in refineries and chemical plants that include adding high surface energy and/or high surface area nanoparticle compounds to a refinery stream to remove the polar molecule contaminants.

Method and systems to remove polar molecules from refinery streams

High molecular weight naphthenic tetra-acids are added to a base crude oil to prevent and/or reduce fouling of crude oil refinery equipment. The method includes adding an effective amount of a high molecular weight naphthenic tetra-acid to the base crude oil to form a crude oil mixture and feeding the crude oil mixture to a crude oil refinery component. Particularly, the high molecular weight naphthenic tetra-acids include ARN acids.

Addition of high molecular weight naphthenic tetra-acids to crude oils to reduce whole crude oil fouling

A method for recovering high molecular weight naphthenic tetra-acids, particularly ARN acids from a calcium naphthenate deposit. Calcium naphthenate deposits contain large amounts of calcium naphthenate salts of ARN acids. The method dual solvent extraction process in which the naphthenic tetra-acids chemically bound as calcium naphthenate salts are converted into free acid monomers by an aqueous acid. The resulting free acid monomers are then dissolved into an organic solvent phase and the counterions dissolve in the aqueous acid phase. The naphthenic tetra-acids are then recovered from the organic solvent phase.

Process for the extraction of high molecular weight naphthenic acids from calcium naphthenate salts

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Flemington, NJ, United States of America

Steven Webster Levine