Patents Represented by Attorney, Agent or Law Firm Estelle C. Bakun
  • Patent number: 6585883
    Abstract: A method for removing or reducing coke deposits in a refinery reactor unit utilizing a reactant gas, preferably steam, and catalyst.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: July 1, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Simon Robert Kelemen, Michael Siskin, Glen Edward Phillips, Nicholas Charles Nahas
  • Patent number: 6581644
    Abstract: Composite laminated fiber reinforced plastic pipe having improved resistance to micro-cracking and delamination is disclosed. The pipe is composed of a plurality of laminated layers forming the pipe wall structure, including an outer axial bearing layer containing reinforcing continuous fibers embedded in a thermoset resin binder and disposed at a substantially fixed angle of 0° up to +/−30° with respect to the longitudinal pipe axis and an inner layer in contact with the inner surface of the outer layer and containing reinforcing continuous fibers embedded in a thermoset resin binder and disposed at a substantially fixed angle of greater than +/−30° with respect to the longitudinal pipe axis.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: June 24, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Liza Marie-Andree Monette, Michael Paul Anderson
  • Patent number: 6573226
    Abstract: The invention relates to a variety of uses for novel carbon monoxide containing polymers. More specifically, the invention employs the use of low molecular weight polymers containing carbon monoxide for use as adhesive additives and as fluids (e.g., solvents and synthetic base stocks).
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 3, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Donald Norman Schulz, Michael Gerard Matturro, Richard Henry Schlosberg
  • Patent number: 6569815
    Abstract: The invention includes a composition of matter for increasing the viscosity of an aqueous fluid and for recovering oil from a subterranean formation. It also includes methods for making and using the composition.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: May 27, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Ramesh Varadaraj
  • Patent number: 6555009
    Abstract: The invention includes a method for demulsification of water-in-oil emulsions.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: April 29, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Ramesh Varadaraj
  • Patent number: 6540023
    Abstract: A process for producing a diesel fuel stock from bitumen uses steam, naphtha and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively (i) stimulate the bitumen production, (ii) dilute it for pipeline transport to an upgrading facility, and (iii) increase the cetane number of a hydrotreated diesel fuel fraction produced by upgrading the bitumen by blending it with the hydroisomerized gas conversion diesel fraction, to form the diesel stock. This diesel stock has a higher cetane number than that produced from the bitumen alone, and is used for blending and forming diesel fuel.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: April 1, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen Mark Davis, Michael Gerard Matturro
  • Patent number: 6533922
    Abstract: A process for decreasing fouling in a refinery unit comprising preheating a hydrocarbon feed to a refinery unit reactor zone and thereafter introducing the feed into the refinery unit reactor zone for reaction. The feed contains polymers and oligomers, and is preheated for a time and at a temperature sufficient such that when the feed is introduced into the refinery unit reaction zone for reaction, the combination of the pre-heating and heating attributable to the reaction zone causes at least 85% of the polymers and oligomers contained in the feed to unzip and wherein no more than about 5 wt % coke is formed in said feed during the preheating step.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: March 18, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Simon Robert Kelemen
  • Patent number: 6524468
    Abstract: The invention includes a compositon of matter comprising a heavy oil having dispersed therein surface modified solid wherein said surface modified solids comprise solids having adsorbed thereon air oxidized polar hydrocarbons from said heavy oil and wherein said surface modified solids have a diameter of about 10 microns or less and a method for preparing the same.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: February 25, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ramesh Varadaraj, James Chi Sung
  • Patent number: 6511937
    Abstract: The invention described herein is directed to (a) slurry hydroprocessing (SHP) of a feed under SHP conditions; (b) deasphalting, under deasphalting conditions the product obtained from said step (a) and recovering a solvent deasphalted oil and solvent deasphalted rock; (c) calcining said solvent deasphalted rock at a temperature of ≦about 1200° F. to produce an ash catalyst precursor; (d) recycling said ash catalyst precursor to said step (a).
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: January 28, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Roby Bearden, Jr., Zhiguo Hou, Martin Leo Gorbaty, David Thomas Ferrughelli, Ronald Damian Myers
  • Patent number: 6488840
    Abstract: This invention relates to reducing the amount of thiols (mercaptans) in petroleum streams, specifically, mercaptans above the five carbon molecular weight range.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: December 3, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mark Alan Greaney, Michael Charles Kerby, Roby Bearden, Jr.
  • Patent number: 6482316
    Abstract: The instant invention is directed to a method for reducing the amount of sulfur in hydrocarbon streams comprising the steps of: (a) contacting a hydrocarbon stream comprising hydrocarbons and sulfur compounds with an adsorbent selective for adsorption of said sulfur compounds, under adsorption conditions capable of retaining said sulfur compounds on said adsorbent and obtaining an adsorption effluent comprising a desulfurized hydrocarbon stream, (b) collecting said desulfurized hydrocarbon stream, (c) desorbing said sulfur compounds from said adsorbent by passing a desorbent through said adsorbent under desorption conditions to obtain a desorption effluent comprising sulfur compounds and said desorbent, (d) treating said desorption effluent to remove said sulfur compounds from said desorption effluent and collecting a desulfurized desorbent effluent comprising desorbent.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: November 19, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Kaul Krishan Bal
  • Patent number: 6454936
    Abstract: The instant invention is directed to a process for decreasing the amount of acids contained in oils by forming a water-in-oil emulsion and utilizing solids.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: September 24, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Ramesh Varadaraj
  • Patent number: 6406613
    Abstract: A method for mitigating the condensation of liquid hydrocarbons and subsequent coke deposition in refinery reactor units by dew point suppression.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: June 18, 2002
    Assignee: ExxonMobil Research and Engineering Co.
    Inventors: Nicholas Charles Nahas, Dean Clise Draemel, Richard Edwards Walter, Michael Siskin, Glen Edward Phillips
  • Patent number: 6352640
    Abstract: The invention describes a method for preparing a low sulfur motor gasoline utilizing ethanol and caustic extraction.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: March 5, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Bruce Randall Cook, Richard Harry Ernst, Mark Alan Greaney
  • Patent number: 6338788
    Abstract: An embodiment of the invention is directed to an electrochemical process for removing polymerizable sulfur compounds from a hydrocarbon feed by (a) combining a solvent and electrolyte with a feed comprising hydrocarbon and polymerizable sulfur compounds to form a first mixture; (b) passing said first mixture into an electrochemical reactor to electrochemically oxidize said polymerizable sulfur compounds in said mixture under conditions capable of producing sulfur oligomers from said polymerizable sulfur compounds; (c) separating said oxidized first mixture to obtain a desulfurized hydrocarbon feed, and a second mixture comprising sulfur oligomers, solvent and electrolyte.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: January 15, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Robert Charles Schucker
  • Patent number: 6329434
    Abstract: The instant invention is directed to a catalytic partial oxidation (CPO) process with improved ignition comprising; (a) igniting an ignition feed comprising hydrogen, diluent and oxygen in a catalytic partial oxidation catalyst bed wherein said ignition feed has a predetermined adiabatic reaction temperature sufficient to cause said catalyst bed to ignite in a manner which prevents said catalyst bed from undergoing thermal shock, (b) modifying said ignition feed following said ignition of said catalyst bed to obtain a reaction feed comprising oxygen and hydrocarbon-reactant in a molar ratio capable of producing partial oxidation products in said catalyst bed under partial oxidation conditions, wherein said modification of said ignition feed is conducted to accomplish a predetermined heatup rate of said catalyst bed, and wherein the amount of diluent present during said modification is sufficient to control the adiabatic reaction temperature.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: December 11, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Yu-Hsin Wen, Frank Hershkowitz, Robert Patrick Reynolds, Jr.
  • Patent number: 6274026
    Abstract: The instant invention is directed to an electrochemical process for removing sulfur from a stream comprising hydrocarbon and polymerizable sulfur compounds comprising: (a) combining a hydrocarbon feed containing polymerizable sulfur compounds with a ionic liquid; (b) electrochemically oxidizing said combination of step (a) in an electrochemical reactor, under conditions capable of producing sulfur oligomers from said polymerizable sulfur compounds to obtain a first fraction comprising sulfur oligomers, ionic liquid, and entrained hydrocarbon, and a second fraction comprising desulfurized hydrocarbon feed; (c) recovering said first fraction and said second fraction.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: August 14, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Robert Charles Schucker, William Chalmers Baird, Jr.
  • Patent number: 6262225
    Abstract: The invention is related to an olefin-carbon monoxide-vinyl monomer terpolymer composition which is derived from an olefin feed and a synthesis gas feed and at least one vinyl monomer feed. The invention is also related to a method for preparing olefin-carbon monoxide-vinyl monomer terpolymers by heating an olefin feed, a synthesis gas feed and at least one vinyl monomer feed in the presence of a free radical polymerization initiator. More particularly, the synthesis gas feed comprises predominantly carbon monoxide and hydrogen. The terpolymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: July 17, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Manika Varma-Nair
  • Patent number: 6251305
    Abstract: The present invention relates to a process for reducing the acidity of a petroleum oil containing organic acids comprising treating said petroleum oil containing organic acids with an effective amount of an alcohol at a temperature and under conditions sufficient to form the corresponding ester of said alcohol.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: June 26, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Guido Sartori, David W. Savage, David C. Dalrymple, Bruce H. Ballinger, Saul C. Blum, William E. Wales
  • Patent number: 6240971
    Abstract: Composite fiber reinforced structures, such as pipes or storage tanks, having improved resistance to microcracking and delamination and improved containment strength are disclosed. The walls of the structures comprise at least one layer comprising a plurality of continuous reinforcing glass fibers having an average diameter of ≦about 10 microns impregnated in a resinous binder such as a thermoset epoxy resin.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: June 5, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Liza M. Monette, Michael P. Anderson, Russell R. Mueller, Cary N. Marzinsky, Allen S. Chiu