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
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
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
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
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
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
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
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.
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
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
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
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
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.
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.
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
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
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