Exxonmobil Chemical Patents Inc.

Exxonmobil Technology and Engineering Company

Exxonmobil Research and Engineering Company

Bryan A Patel

Jihad Mohammed Dakka

Brenda Anne Raich

Stephen Harold Brown

Christopher Lynn Becker

Anjaneya Sarma Kovvali

John Slocum Coleman

Arun K Sharma

Eric B Shen

Aruna Ramkrishnan

Travis A Reine

Samuel J Cady

John Della Mora

Phillip K Schoch

Frank Hershkowitz

Paul F Keusenkothen

Stephen Zushma

Rainer Kolb

Francisco Manuel Benitez

Jeffrey William Frederick

Jason D Davis

Michael Salciccioli

Victor DeFlorio

Michael W Weber

Michael P Lanci

John William Fulton

Richard John Basile

Steven M Slack

Joshua W Allen

Derrick B Callander

Eric M Yucha

Fritz A Bernatz

Rustom M Billimoria

Andrew Richard Szafran

Jarid M Metz

Yesim Igci

Alex S Kolb

Min Chang

Teng Xu

Stuart S Shih

Edmund John Mozeleski

Charles Morris Smith

Timothy Lee Hilbert

Hari Nair

Kapil Kandel

Mohan Kalyanaraman

Randolph John Smiley

Anastasios I Skoulidas

Keith K Aldous

Sumathy Raman

Rustom Merwan Billimoria

Seth McConkie Washburn

Anthony Go

Reyyan Koc-Karabocek

Dennis Jay Davoren

Krishnan Sankaranarayanan

Milind Ajinkya

Subramanya V Nayak

Michael R Chuba

Andrew R Witt

Sean C Smyth

Saurabh S Maduskar

James Oliver Meredith

Sundararajan Uppili

Cyrus J Rachal

Lawrence R Gros

Melissa D Foster

Philippe Laurent

Anastasios L Skoulidas

Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport. In still other aspects, the systems and methods can allow for reduced incorporation of external streams into the final product for transport while still satisfying one or more target properties.

Apparatus and process for upgrading heavy hydrocarbons

Systems and methods are provided for integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas oil, including a method of producing circular chemical products comprising: providing a coker gas oil that is at least partially derived from polymeric waste, wherein the coker gas oil has a paraffin content of about 5 wt % to about 50 wt %, a sulfur content of about 0.1 wt % to about 7 wt %, and a halide content of about 0.1 wppm to about 5 wppm; and converting the coker gas oil into at least a polymer.

Integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas oil

Systems and methods are provided for integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas, including a method of producing circular chemical products comprising: providing a coker gas that is at least partially derived from polymeric waste, wherein the coker gas has an olefin content of about 10 wt % to about 30 wt %, a sulfur content of about 0.5 wt % to about 5 wt %, and a total halide content of about 1 wppm to about 150 wppm; and oxygen-containing compounds in an amount of about 0.5 wt % to about 15 wt %; and converting the coker gas into at least a polymer.

Integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas

Systems and methods are provided for integration of a reactor for polyolefin pyrolysis with the effluent processing train for a steam cracker. The polyolefins can correspond to, for example, polyolefins in plastic waste. Integrating a process for polyolefin pyrolysis with a steam cracker processing train can allow a mixture of polymers to be converted to monomer units while reducing or minimizing costs and/or equipment footprint. This can allow for direct conversion of polyolefins to the light olefin monomers in high yield while significantly lowering capital and energy usage due to integration with a steam cracking process train. The integration can be enabled in part by selecting feeds with appropriate mixtures of various polymer types and/or by limiting the volume of the plastic waste pyrolysis product relative to the volume from the steam cracker(s) in the steam cracking process train. By selecting plastic waste and/or other polyolefin sources with an appropriate mixture of polyolefins as the feedstock, the resulting polyolefin pyrolysis product can be separated in a steam cracking process train to produce separate fractions for various polymer grade small olefin products.

Light olefin recovery from plastic waste pyrolysis

Systems and methods are provided for separation of particles and/or asphaltenes from heavy hydrocarbon fractions. The heavy hydrocarbon fraction can correspond to a feed including particles or a processing effluent that includes particles. If the heavy hydrocarbon fraction is mixed with lower boiling fractions, a separation can be performed to reduce or minimize the amount of hydrocarbons that are present in the heavy hydrocarbon fraction. The heavy hydrocarbon fraction can then be mixed with a sufficient amount of a separation solvent to cause a phase separation. One phase can correspond to the separation solvent plus a portion of the hydrocarbons. The other phase can correspond to hydrocarbons rejected by the separation solvent plus the particles from the heavy hydrocarbon fraction. The phases can then be separated from each other using a solids-liquid centrifugal separator.

Extractive solids removal from heavy fractions

Slurry hydroconversion process for upgrading heavy hydrocarbons

A multi-stage process for upgrading tars is provided. A predominantly hydrotreating stage can be applied before a cracking stage, which can be a hydrocracking or a thermal cracking stage. Alternatively, a predominantly cracking stage, which can be a hydrocracking or a thermal cracking stage, can be applied before a hydrotreating stage. Apparatus suitable for performing the method is also provided.

Multistage upgrading hydrocarbon pyrolysis tar

Provided herein is a cyclic imide slurry composition and processes for forming and/or using such a composition. The slurry composition comprises solid cyclic imide and organic liquid, such as liquid alkylbenzene, liquid cyclohexane, and/or liquid organic alcohol (such as cyclohexanol). The slurry composition may find particular use in processes in which the cyclic imide serves as an oxidation catalyst (e.g., as a radical initiator). For instance, the slurry composition may be useful in the oxidation of a liquid alkylbenzene such as cyclohexylbenzene to corresponding 1-cyclohexyl-1-phenyl hydroperoxide. Such an oxidation reaction may further be part of an integrated process for the production of phenol and/or cyclohexanone from benzene via hydroalkylation to form cyclohexylbenzene.

Cyclic imide slurry compositions

A process for selective oxidation of dimethyl-1,1'-biphenyl to form methyl-1,1&#x2032;-biphenyl mono-carboxylic acid(s), comprising contacting a solution of dimethyl-1,1&#x2032;-biphenyl in acetic acid solvent in the presence of a Co(II) acetate catalyst and air, and optionally adding a co-solvent, or adding sodium or potassium acetate, and oxidizing the dimethyl-1,1&#x2032;-biphenyl under time and temperature conditions sufficient to form one or more methyl-1,1&#x2032;-biphenyl mono-carboxylic acid(s). The mono-carboxylic acids are advantageously isolated and esterified to form biphenyl mono-esters for use as plasticizers.

Selective aerobic oxidation of dimethylbiphenyls

A process for selective oxidation of dimethyl-1,1'-biphenyl(s) to form methyl-1,1&#x2032;-biphenyl mono-carboxylic acid(s), which can be esterified to form plasticizers, comprising contacting a solution of dimethyl-1,1&#x2032;-biphenyl(s) in acetic acid in the presence of an oxidation catalyst and air under time and temperature conditions sufficient to oxidize the dimethyl-1,1&#x2032;-biphenyl(s) into one or more methyl-1,1&#x2032;-biphenyl mono-carboxylic acid(s) products, conducting at least one of (i) adding an antisolvent, or (ii) optimizing a total conversion of dimethyl-1,1&#x2032;-biphenyl(s) by oxidation based upon a molar ratio of dimethyl-1,1&#x2032;-biphenyl isomers, or (iii) precipitating the methyl-1,1&#x2032;-biphenyl mono-carboxylic acid(s) products by lowering the temperature, or (iv) decreasing the oxidation reaction temperature to enhance conversion of aldehydes over methyl functional groups, so as to limit over-oxidation of the dimethyl-1,1&#x2032;-biphenyl(s), wherein the oxidation reaction is conducted in the absence of bromide-containing catalysts.

Disclosed are processes and systems for oxidizing cycloalkylbenzene such as cyclohexylbenzene to make an oxygenate such as a hydroperoxide thereof. A liquid distributor having multiple liquid ingress ports is used for supplying a cycloalkylbenzene-containing liquid into an oxidation reactor in the form of liquid streams forming part of the reaction medium. A gas distributor distributing an O-containing gas into the reaction medium in the form of gas streams is preferably located below the liquid distributor. Preferably the gas bubbles upwards in the reaction medium. The agitation and mixing provided by the liquid streams, gas streams/bubbles result in sufficient homogeneity of cycloalkylbenzene concentration, cycloalkylbenzene hydroperoxide concentration, dissolved oxygen concentration, and temperature in the liquid phase.

Process and reactor system for oxidizing cycloalkylbenzene

Systems and methods are provided for catalytically dewaxing a diesel boiling range feed. In some aspects, catalytic dewaxing can be performed at low hydrogen treat gas rates and/or low hydrogen purity conditions. In other aspects, the systems and methods can allow for distillate dewaxing while reducing or minimizing the amount of equipment required.

Production of low cloud point distillate fuels

Systems, methods, and apparatus for distribution of oxygen-containing gas within a gas-liquid oxidation reaction are provided herein. The invention is particularly suited for oxidation of liquid-phase organic reactants with oxidizing gas, such as the oxidation of cyclohexylbenzene to cyclohexylbenzene hydroperoxide using an oxygen-containing gas. The oxygen-containing gas is distributed through a gas distributor and into a liquid-phase reaction medium within an oxidation reactor. In some aspects, this achieves a high degree of uniformity of oxygen concentration within the liquid-phase reaction medium. The gas distributor is disposed within a lower portion of the reactor, and may comprise a network of conduits in fluid communication with each other, which are arranged within a plane that is substantially parallel to a bottom surface of the reactor. A plurality of orifices are disposed on the conduits, such that oxygen-containing gas flows through the conduits and into the liquid-phase reaction medium via the orifices.

Gas distribution in oxidation reactions

In a process for oxidizing a feed comprising cyclohexylbenzene, the feed is contacted with oxygen and an oxidation catalyst in a plurality of reaction zones connected in series, the contacting being conducted under conditions being effective to oxidize part of the cyclohexylbenzene in the feed to cyclohexylbenzene hydroperoxide in each reaction zone. At least one of the plurality of reaction zones has a reaction condition that is different from another of the plurality of reaction zones. The different reaction conditions may include one or more of (a) a progressively decreasing temperature and (b) a progressively increasing oxidation catalyst concentration as the feed flows from one reaction zone to subsequent reaction zones in the series.

Oxidation of cyclohexylbenzene

Growing community of inventors

Jersey City, NJ, United States of America

Bryan A Patel