Exxonmobil Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Exxonmobile Research and Engineering Company

Exxonmobil Chemicals Patents, Inc.

Frank Cheng-Yu Wang

Teng Xu

Kapil Kandel

Michael Siskin

Kun Wang

Krystle J Emanuele

Edmund John Mozeleski

Lei Zhang

David T Ferrughelli

Charles Lambert Baker, Jr

Beatrice Marie Gooding

Eugenio Sanchez

Anthony S Mennito

Kristen Amanda Lyon

James Richardson Lattner

Stephen Harold Brown

Harry William Deckman

Karl Gottlieb Strohmaier

Michel A Daage

Daniel Paul Leta

Ivy Dawn Johnson

Alan Roy Katritzky

Preeti Kamakoti

Peter I Ravikovitch

John Slocum Coleman

Tilman W Beutel

Glenn Allen Heeter

Charanjit Singh Paur

Paul D Oldenburg

Virginia M Roberts

Barbara Carstensen

Bryan E Hagee

Suzzy Chen Hsi Ho

Reyyan Koc-Karabocek

Robert Basil Fedich

Renyuan Yu

Joshua Varon

Maryam Peer Lachegurabi

Bryan Tiedemann

Suzzy Chen Ho

Stephen Mark Davis

Cathleen Yung

Paul D Oldbenburg

Hydrocarbon-containing fluids are provided for use during solvent-assisted hydroprocessing of pyrolysis tar, such as steam cracker tar. The hydrocarbon-containing fluids can be used at any convenient time, such as during start-up of a pyrolysis process when recycled liquid pyrolysis product is not available; when the amount of liquid pyrolysis product available for recycle is not sufficient to maintain desired hydroprocessing conditions; and/or when the changes to the quality of the liquid pyrolysis product reduce the suitability of the recycle stream for use as a utility fluid.

Fluid for tar hydroprocessing

In an embodiment, a method for decreasing reactor fouling in a steam cracking process is provided. The method includes steam cracking a hydrocarbon feed to obtain a quench oil composition comprising a concentration of donatable hydrogen of 0.5 wt. % or more based on a total weight percent of the quench oil composition; exposing a steam cracker effluent flowing from a pyrolysis furnace to the quench oil composition to form a mixture; and fractionating the mixture in a separation apparatus to obtain a steam cracker tar. In another embodiment, a hydrocarbon mixture is provided. The hydrocarbon mixture includes a mid-cut composition.

Steam cracking processes and the use of solvents streams produced by solvent-assisted tar conversion processes

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 process is described for upgrading pyrolysis tar, such as steam cracker tar, by hydroprocessing in the presence of a utility fluid. The hydroprocessing conditions comprise a pressure &#x3e;8 MPa and a weight hourly space velocity of combined pyrolysis tar and utility fluid &#x3e;0.3 hrand are selected so that the hydrogen consumption rate is in the range of 270 to 445 standard cubic meters/cubic meter (S m/m) of pyrolysis tar.

Upgrading hydrocarbon pyrolysis tar

Adsorbent materials comprising a core, for example CHA, and at least one coating, for example DDR, are provided herein. Adsorbent contactors and gas separation processes using the adsorbent materials are also provided herein.

Adsorbent materials and methods of use

Provided are processes for making saturated hydrocarbons from renewable feed sources. In an embodiment, a process for producing a lube basestock and/or a diesel fuel from a feedstock of biological origin includes: contacting the feedstock in a single reactor in the presence of hydrogen with catalyst components including a first catalyst and a second catalyst, wherein the first catalyst comprises an acidic material, a basic material, or a combination of both, and wherein the second catalyst is a hydrogenation catalyst including a hydrothermally stable binder.

Process for making saturated hydrocarbons from renewable feeds

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

An acid gas absorbent comprising an alkylamino alkyloxy (alcohol) monoalkyl ether and a process for the selective removal Of HS from gaseous mixtures containing HS and COusing an absorbent solution comprising an alkylamino alkyloxy alcohol monoalkyl ether.

Alkylamino alkyloxy (alcohol) monoalkyl ether for acid gas scrubbing process

Hydrocarbyl substituted and unsubstituted polyethylene imines and polyacrylamide salts are absorption compositions and are useful in processes for the treatment of acid gas mixtures.

Polyalkyleneacrylamide salt for acid gas scrubbing process

Hindered cyclic polyamines and their salts are absorbents useful in acid gas treatment processes.

Hindered cyclic polyamines and their salts for acid gas scrubbing process

The invention relates to a method for analyzing a lubricating oil for low temperature properties. The method utilizes 2-dimensional gas chromatography (2D GC) to determine the amounts of paraffins and isoparaffins in the oil. In particular, the method analyzes for a particular isoparaffin fraction which is correlated to low temperature performance. The compositional information thus obtained is correlated with formulated oil Mini Rotary Viscometer (MRV) properties.

Method of analyzing basestocks for low temperature properties

A process for producing lube basestocks involving solvent dewaxing a waxy feed to produce at least a partially dewaxed lube oil boiling range stream and then hydrodewaxing the partially dewaxed lube oil boiling range stream to produce a lube basestock.

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Annandale, NJ, United States of America

Frank Cheng-Yu Wang