With Nonhydrocarbon Additive Patents (Class 585/2)
  • Patent number: 7473345
    Abstract: Lubricant blends and finished gear oils comprising a lubricant base oil fraction derived from highly paraffinic wax, a petroleum derived base oil, and a pour point depressant are provided. The lubricant base oil fraction derived from highly paraffinic wax comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: January 6, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
  • Patent number: 7384536
    Abstract: Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 10, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
  • Patent number: 7371906
    Abstract: A process for improving the stability to photo-oxidation of a polycyclic aromatic compound having at least two polymorphic forms comprises treating a first polymorph with one or more solvents to obtain the more stable second polymorph and then separating the second polymorph from the solvent.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: May 13, 2008
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, William F. Nichols, Manju Rajeswaran, Natasha Andrievsky, Michael R. Landry
  • Patent number: 7329772
    Abstract: A method of making a hindered phenolic antioxidant is disclosed wherein the method comprises: reacting an ester of the formula: wherein R1, R2, and R3 are independently selected alkyl groups and n is 0, 1, or 2, with an aliphatic polyhydroxyl alcohol of the general formula R(OH)n wherein R is an aliphatic group of from 2 to about 12 carbon atoms and n is an integer of from 2 to 7, provided that one hydroxyl is primary and the others are secondary or tertiary, in the presence of a strong acid catalyst; then, neutralizing the strong acid catalyst with an overbased detergent; and isolating the hindered phenolic antioxidant after the neutralization step.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: February 12, 2008
    Assignee: Crompton Corporation
    Inventor: John R. Baranski
  • Publication number: 20070208204
    Abstract: A polymerization inhibitor for stabilizing olefinically unsaturated monomers containing at least one compound of formula (1) and/or (2) according to the invention. Stabilized monomer compositions.
    Type: Application
    Filed: February 5, 2007
    Publication date: September 6, 2007
    Applicant: DEGUSSA GmbH
    Inventors: Oliver Meyer, Phillip James, Oliver Erpeldinger, Frank Kraushaar
  • Patent number: 7144497
    Abstract: A process for producing a lubricating base oil blend which comprises (a) recovering a Fischer-Tropsch derived distillate fraction characterized by a kinematic viscosity of about 2 cSt or greater but less than 3 cSt at 100 degrees C.; and (b) blending the Fischer-Tropsch derived distillate fraction with a petroleum derived base oil selected from the group consisting of a Group I base oil, a Group II base oil, a Group III base oil, and a mixture of two or more of any of the foregoing conventional base oils in the proper proportion to produce a lubricating base oil blend characterized as having a viscosity of about 3 or greater; also the base oil blends, finished lubricants, and their use in internal combustion engines.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: December 5, 2006
    Assignee: Chevron U.S.A. Inc.
    Inventors: Brent K. Lok, David Kramer, John M. Rosenbaum, Joseph Pudlak
  • Patent number: 7096942
    Abstract: A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of the formation. The transferred heat may pyrolyze at least some hydrocarbons within the selected section. A mixture of hydrocarbons may be produced from the selected section. In some embodiments, pressure may be controlled to produce a desired property in the produced mixture.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: August 29, 2006
    Assignee: Shell Oil Company
    Inventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
  • Patent number: 7040400
    Abstract: A method for treating a relatively low permeability formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of the formation. The transferred heat may pyrolyze at least some hydrocarbons within the selected section. A mixture of hydrocarbons may be produced from the selected section. In certain embodiments, one or more heat sources may be placed in an uncased wellbore.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: May 9, 2006
    Assignee: Shell Oil Company
    Inventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Bruce Gerard Hunsucker, John Michael Karanikas, Charles Robert Keedy, Robert Charles Ryan, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
  • Patent number: 7040399
    Abstract: An oil shale formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a desired temperature. A heating rate for a selected volume of the formation may be controlled by altering an amount of heating energy per day that is provided to the selected volume.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: May 9, 2006
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Ilya Emil Berchenko, Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Etuan Zhang
  • Patent number: 6994160
    Abstract: A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. An average temperature and/or pressure within the formation may be controlled to inhibit production of hydrocarbons that have carbon numbers greater than a selected carbon number. In some embodiments, the selected carbon number is 25. A small number of hydrocarbons having carbon numbers greater than the selected carbon number may be entrained in vapor produced from the formation.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: February 7, 2006
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Harold J. Vinegar, Eric Pierre de Rouffignac, Ilya Emil Berchenko, George Leo Stegemeier, Etuan Zhang, Gordon Thomas Shahin, Jr., Thomas David Fowler, Robert Charles Ryan
  • Patent number: 6923257
    Abstract: An oil shale formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to maintain a temperature below about a maximum selected temperature.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: August 2, 2005
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Ilya Emil Berchenko, Eric Pierre de Rouffignac, Thomas David Fowler, John Michael Karanikas, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Etuan Zhang
  • Patent number: 6923258
    Abstract: A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The mixture produced from the formation may have a relatively high hydrogen partial pressure, and a large portion of the pressure within the formation may be attributable to hydrogen partial pressure.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: August 2, 2005
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Harold J. Vinegar, Eric Pierre de Rouffignac, Ilya Emil Berchenko, George Leo Stegemeier, Etuan Zhang, Gordon Thomas Shahin, Jr., Thomas David Fowler, Robert Charles Ryan
  • Patent number: 6918442
    Abstract: An oil shale formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. A reducing environment may be maintained within a portion of the formation.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: July 19, 2005
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Ilya Emil Berchenko, Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Etuan Zhang
  • Patent number: 6833484
    Abstract: The present invention relates blended hydrocarbonaceous products comprising Fischer Tropsch derived products that resist oxidation and to methods of inhibiting oxidation in Fischer Tropsch products. The present invention also relates to Fischer Tropsch products containing an effective amount of a petroleum-derived hydrocarbonaceous product such that the Fischer Tropsch product resists oxidation.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: December 21, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventor: Dennis J. O'Rear
  • Publication number: 20040254409
    Abstract: A process for the conversion of oxygenates to hydrocarbons comprising contacting a feed stream comprising oxygenates with a catalyst containing a microporous material under oxygenate conversion conditions, wherein the catalyst contains a crystalline microporous material with intra-crystalline mesopores. The invention also includes a composition for use in the above process.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 16, 2004
    Inventors: Ton V.W. Janssens, Soren Dahl, Claus Hviid Christensen
  • Patent number: 6803492
    Abstract: The invention relates to an additive for improving the cold-flow properties of crude and distillate oils, where the additive is obtainable by extraction of crude oil with supercritical gas.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: October 12, 2004
    Assignee: Clariant International Ltd.
    Inventors: Michael Feustel, Hans-Jörg Oschmann, Utha Kentschke
  • Patent number: 6797846
    Abstract: A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution. A method of preparing the fibrous crystal aggregates. A material for recovering flowing oil and method of recovering flowing oil by using the fibrous crystal aggregates. A material for solidifying liquid hydrocarbon, waste tempura oil and edible oil and method of solidifying liquid hydrocarbon, waste tempura oil and edible oil by using the fibrous crystal aggregates. A method of preparing the solidifying material.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: September 28, 2004
    Assignees: National Institute of Advanced Industrial Science and Technology, Okamura Oil, Mill, Ltd.
    Inventors: Hiroshi Sakaguchi, Yoshishige Kida, Seizi Iseki
  • Publication number: 20040177958
    Abstract: A method of treating a hydrocarbon containing formation is described. The method may include providing a hydrocarbon recovery composition to the hydrocarbon containing formation. Hydrocarbons in the hydrocarbon containing formation may interact with the hydrocarbon recovery composition. The hydrocarbon recovery composition may include an aliphatic anionic surfactant and an aliphatic nonionic additive. In some embodiments, an aliphatic anionic surfactant may be branched. In other embodiments, an aliphatic nonionic additive may be branched.
    Type: Application
    Filed: March 11, 2003
    Publication date: September 16, 2004
    Inventors: Paul Gregory Shpakoff, Kirk Herbert Raney
  • Patent number: 6761818
    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: January 17, 2003
    Date of Patent: July 13, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ramesh Varadaraj, James Chi Sung
  • Patent number: 6742588
    Abstract: A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. A hydrocarbon condensate produced from the formation may be a high quality oil that has a low olefin content.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: June 1, 2004
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Harold J. Vinegar, Eric Pierre de Rouffignac, Ilya Emil Berchenko, George Leo Stegemeier, Etuan Zhang, Gordon Thomas Shahin, Jr., Thomas David Fowler, Robert Charles Ryan
  • Publication number: 20040092408
    Abstract: A grease for rock bit lubrication and other high temperature bearing applications is provided comprising a high viscosity index polyalphaolefin synthetic base fluid in combination with an alkylated naphthalene base fluid.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 13, 2004
    Applicant: Tomlin Scientific, Inc.
    Inventors: Thomas F. Willey, Ryan J. Willey, Scott T. Willey
  • Patent number: 6729396
    Abstract: A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. An average temperature and/or pressure within the formation may be controlled to inhibit production of hydrocarbons that have carbon numbers greater than 25. A small amount of hydrocarbons having carbon numbers greater than 25 may be entrained in vapor produced from the formation.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: May 4, 2004
    Assignee: Shell Oil Company
    Inventors: Harold J. Vinegar, Scott Lee Wellington, Eric Pierre de Rouffignac, John Michael Karanikas, Ilya Emil Berchenko, George Leo Stegemeier, Etuan Zhang, Thomas David Fowler, Robert Charles Ryan
  • Publication number: 20040077505
    Abstract: A lubricant composition comprising a base oil and one or more additives wherein the lubricant composition has a kinematic viscosity at 100° C. of more than 5.6 cSt, a cold cranking simulated dynamic viscosity at −35° C. according to ASTM D 5293 of less than 62 centiPoise (cP) and a mini rotary viscosity test value of less than 60000 cP according to ASTM d 4684, wherein the base oil has been obtained from a waxy paraffinic Fischer-Tropsch synthesized hydrocarbons.
    Type: Application
    Filed: August 13, 2003
    Publication date: April 22, 2004
    Inventors: Mervyn Frank Daniel, Gilbert Robert Bernard Germaine, David John Wedlock
  • Patent number: 6717021
    Abstract: A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of about 285° to about 500° C. (about 550° F.-932° F.). At least 80% of the carbon atoms of the hydrocarbons are aromatic as characterized by carbon 13 NMR. The aromatic hydrocarbons are selected from a group consisting of aromatic compounds having 2 to 5 aromatic rings, substituted aromatic compounds having 2 to 5 aromatic rings wherein said substituents are alkyl groups having 1 to 3 carbons, hydroaromatic compounds having 2 to 5 rings, substituted aromatic compounds having 2 to 5 rings wherein said substituents are alkyl groups having 1 to 3 carbons, and mixtures thereof.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: April 6, 2004
    Assignee: ConocoPhillips Company
    Inventors: H. Ernest Romine, John A. Rodgers, W. Mark Southard, Edward J. Nanni
  • Publication number: 20030205503
    Abstract: A method for inhibiting and dissolving the deposits formed on caustic or alkaline scrubbers used in scrubbing acidic gases such as carbon dioxide, hydrogen sulfide, which are formed during the pyrolytic cracking of naphtha, ethane, and propane. The cracking operations produce certain oxygenated compounds such as vinyl acetate or acetaldehyde, which undergo polymerization under alkaline condition. The vinyl acetate on hydrolysis releases acetaldehyde under alkaline conditions. Amino acids such as 6 amino caproic acid and lactams such as epsilon caprolactam not only prevent but also dissolve the polymers formed by aldol condensation.
    Type: Application
    Filed: April 29, 2002
    Publication date: November 6, 2003
    Inventors: Mahesh Subramaniyam, Bankar Prashant
  • Patent number: 6638417
    Abstract: A traction drive fluid is provided containing a naphthenic compound represented by the formula: wherein R1 is an alkyl group having 1 to 8 carbon atoms, R2 through R4 are each independently hydrogen or an alkyl group having 1 to 8 carbon atoms, and A is a naphthenic hydrocarbon group, a saturated polycyclic hydrocarbon group, a naphthenic ester group, or a naphthenic carbonate group.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: October 28, 2003
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Noboru Ishida, Shinichi Shirahama, Tetsuo Okawa, Shigeki Matsui
  • Patent number: 6610634
    Abstract: A two-cycle oil is disclosed consisting of a polybutene polymer, solvent and mineral oil which passes the JASO engine test for gasoline fueled two-cycle engines.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: August 26, 2003
    Assignee: Exxon Chemical Patents Inc.
    Inventors: George Mortimer Tiffany, III, George Conrad L'Heureux, John Henry Smythe
  • Patent number: 6596911
    Abstract: A method and a composition used therein are disclosed for inhibiting formation of hydrocarbon hydrates. The composition comprises an onium compound, an amine salt and, optionally, a solvent.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: July 22, 2003
    Assignee: Baker Hughes Incorporation
    Inventors: John L. Przybylinski, Gordon T. Rivers
  • Publication number: 20030135076
    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: Application
    Filed: January 17, 2003
    Publication date: July 17, 2003
    Inventors: Ramesh Varadaraj, James Chi Sung
  • Patent number: 6586488
    Abstract: Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: July 1, 2003
    Assignee: AlliedSignal Inc.
    Inventor: Ian Robert Shankland
  • Publication number: 20030114320
    Abstract: A synthetic lubricant base stock is provided hang a kinematic viscosity at 100° C. of from 5 to about 300 cS and a VI greater than 100. The base stock comprises random co-oligomers of an alpha olefin or mixtures thereof and an olefinic substituted aromatic compound which co-oligomers are prepared in the presence of a Friedel-Crafts catalyst.
    Type: Application
    Filed: September 10, 2002
    Publication date: June 19, 2003
    Inventors: Margaret May-Som Wu, Steven Edward Donnachie, James Thomas Carey, Walter David Vann, Norman Yang, Dilip Surana
  • Publication number: 20030109760
    Abstract: It has been discovered that the polymerization of unsaturated compounds, such as butadiene, may be inhibited by the addition of a diene and/or alkanolamine inhibitor. The inhibitor is believed to catalytically destroy peroxides present, such as hydrogen peroxide, which may be present in trace amounts. Particularly useful inhibitors include, but are not limited to, ethylenediamine (EDA) and monoethanolamine (MEA).
    Type: Application
    Filed: January 3, 2003
    Publication date: June 12, 2003
    Inventor: Muslim D. Shahid
  • Patent number: 6570045
    Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 27, 2003
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda
  • Patent number: 6562230
    Abstract: A process for preparing hydrocarbons in the lube base oil range, lube base oils and lube oil compositions from a fraction with an average molecular weight above a target molecular weight and a fraction with an average molecular weight below a target molecular weight via molecular averaging is described. The fractions can be obtained, for example, from Fischer-Tropsch reactions, and/or obtained from the distillation of crude oil. Molecular averaging converts the fractions to a product with a desired molecular weight, for use in preparing a lube oil composition. The product can optionally be isomerized to lower the pour point, and also can be blended with suitable additives for use as a lube oil composition.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: May 13, 2003
    Inventors: Dennis O'Rear, Russell R. Krug
  • 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
  • Publication number: 20030013931
    Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.
    Type: Application
    Filed: June 24, 2002
    Publication date: January 16, 2003
    Inventors: Ulrich Block, Rolf Seubert, Bernhard Ulrich, Helmut Wunschmann
  • Patent number: 6506806
    Abstract: A composition for reducing surface tension comprising from about 0.1% to about 0.5% by weight of a hydrocarbon surfactant and from 0.0001% to about 0.3% by weight of a fluorocarbon surfactant, provided that the hydrocarbon surfactant is present at less than or equal to 0.08% by weight when the fluorocarbon surfactant is present at greater than or equal to 0.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: January 14, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Charles Kenneth Taylor, Kai Volker Schubert, Richard David Koehler
  • Publication number: 20020193646
    Abstract: The present invention relates blended hydrocarbonaceous products comprising Fischer Tropsch derived products that resist oxidation and to methods of inhibiting oxidation in Fischer Tropsch products. The present invention also relates to Fischer Tropsch products containing an effective amount of a petroleum-derived hydrocarbonaceous product such that the Fischer Tropsch product resists oxidation.
    Type: Application
    Filed: June 15, 2001
    Publication date: December 19, 2002
    Inventor: Dennis J. O'rear
  • Publication number: 20020193645
    Abstract: The present invention relates to the use of antioxidants in Fischer Tropsch derived products. The antioxidants of the present invention are preferably temporary antioxidants that may be removed after the period in which oxidation is expected by techniques such as simple distillation. The temporary antioxidants of the present invention are typically sulfur-containing compounds generated from sweetening light hydrocarbon streams.
    Type: Application
    Filed: June 15, 2001
    Publication date: December 19, 2002
    Inventor: Dennis J. O'Rear
  • Patent number: 6475960
    Abstract: Premium synthetic lubricants comprise a synthetic isoparaffinic hydrocarbon base stock and an effective amount of at least one, and typically a plurality of lubricant additives such as a detergent, dispersant, antioxidant, antiwear additive, pout point depresant, VI improver and the like. The base stock is derived from a waxy, paraffinic, Fischer-Tropsch synthesized hydrocarbon feed fraction having an initial boiling point in the range of about 650-750° F. and continuously boiling up to at least 1050° F., by a process which comprises hydroisomerizing the feed and dewaxing the isomerate. The waxy feed has a T90−T10 temperature difference of at least 350° F. and is preferably hydroisomerized without any pretreatment, other than optional fractionation. The lubricant may also contain hydrocarbonaceous and synthetic base stock material.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: November 5, 2002
    Assignee: ExxonMobil Research and Engineering Co.
    Inventors: Paul J. Berlowitz, Jacob J. Habeeb, Robert J. Wittenbrink
  • Patent number: 6461421
    Abstract: This invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an aldehyde or a ketone, and a carboxylic acid ester.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 8, 2002
    Inventor: Alan Jeffrey Ronvak
  • Patent number: 6417415
    Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 9, 2002
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda
  • Patent number: 6409887
    Abstract: A monomer composition, stabilized against premature polymerization, comprising: a) an ethylenically unsaturated monomer or mixture of monomers polymerizable by free radical initiation, and b) an effective amount, sufficient to inhibit premature polymerization of component (a) of a mixture of: i) 1 to 99% by weight, based on the total weight of components (i) and (ii), of a mixture of at least one aromatic amine and at least one organic acid in a molar ratio of 10:1 to 1:10, and ii) 99 to 1% by weight, based on the total weight of components (i) and (ii), of at least one stable radical compound.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: June 25, 2002
    Assignee: AAH Marks and Company Limited
    Inventors: Anthony Pryce, Robert Charles Callin
  • Patent number: 6410810
    Abstract: A mixture of bis- and tris(fluoroaryl)borane compounds expressed by General Formula (1) below is handled in the form of a slurry made with a hydrocarbon solvent: where each of R1, R2, R3, R4 and R5 independently represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group provided that at least one of R1-R5 represents a fluorine atom, X represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, and wherein n represents 2 for the bis(fluoroaryl)borane compounds and 3 for the tris(fluoroaryl)borane compounds. Then, a hydrocarbon solution of the (fluoroaryl)borane compounds having a concentration of the tris(fluoroaryl)borane compounds in a range between 1 wt % and 1 wt % is prepared by dissolving the slurry into a hydrocarbon solvent in a virtually air-tight vessel.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: June 25, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno, Naoko Hirano
  • Patent number: 6399697
    Abstract: Process oil which satisfies requirements that a content of a polycyclic aromatic compound is less than 3% by weight, a content of an aromatic hydrocarbon is 18% by weight or more, a content of a polar compound is between 11 and 25% by weight, a kinematic viscosity at 100° C. is between 10 and 70 mm2/s, and a flash point is 210° C. or more.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: June 4, 2002
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masami Takasaki, Meishi Tanaka, Hisao Anzai, Masashi Nakamura, Chisato Endo
  • Patent number: 6383281
    Abstract: The present invention relates to a molding composition based on sinterable materials, comprising a) from 80 to 99.5% by weight of sinterable powder having a maximum particle size of 2000 &mgr;m, b) from 0.5 to 20% by weight of metallocene polyolefin wax, c) if desired, up to 19.5% by weight of a further dry lubricant, and to its use for producing shaped ceramic and powder metallurgical parts by pressing.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: May 7, 2002
    Assignee: Clariant GmbH
    Inventor: Michael Bayer
  • Publication number: 20020038063
    Abstract: A method and a composition used therein are disclosed for inhibiting formation of hydrocarbon hydrates. The composition comprises an onium compound, an amine salt and, optionally, a solvent.
    Type: Application
    Filed: February 20, 2001
    Publication date: March 28, 2002
    Inventors: John L. Przybylinski, Gordon T. Rivers
  • Publication number: 20020011427
    Abstract: A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of about 285° to about 460° C. (about 550° F.-932° F.). At least 80% of the carbon atoms of the hydrocarbons are aromatic as characterized by carbon 13 NMR. The aromatic hydrocarbons are selected from a group consisting of aromatic compounds having 2 to 5 aromatic rings, substituted aromatic compounds having 2 to 5 aromatic rings wherein said substituents are alkyl groups having 1 to 3 carbons, hydroaromatic compounds having 2 to 5 rings, substituted aromatic compounds having 2 to 5 rings wherein said substituents are alkyl groups having 1 to 3 carbons, and mixtures thereof.
    Type: Application
    Filed: June 4, 2001
    Publication date: January 31, 2002
    Inventors: H. Ernest Romine, John A. Rodgers, W. Mark Southard, Edward J. Nanni
  • Patent number: 6339051
    Abstract: Diesel engine cylinder oils of improved cleanliness and load carrying ability and reduced port deposit characteristics for use in marine and stationary slow speed diesel engines are based on medium heavy Group I or Group II neutral base oils, typically from 300 to 500 SUS using a liquid, oil-miscible polyisobutylene (PIB) in combination with the neutral base stock and an additive package comprising a detergent component or components, an antioxidant, an antiwear agent, and a dispersant. The detergent component preferably comprises one or more overbased phenates, phenylates, salicylates or sulfonates in order to confer the desired alkalinity characteristics on the finished oil. The oils are produced in the viscosity range of 15 to 25 cS (100° C.), usually with a nominal viscosity of 20 or 24 cS, i.e., from 18.5 to 21.9 cS or 21.9 to 26.1 cS (100° C.). The viscosity index of the improved oils is at least 95, typically from 105 to 120. Total Base Number of the oils is in the range 40 to 100.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: January 15, 2002
    Assignee: Mobil Oil Corporation
    Inventors: Vincent M. Carey, John T. Fogarty
  • Publication number: 20020002255
    Abstract: Ethylene copolymers with octene and/or ethylene terpolymers with alpha-olefins from 3 to 12 carbon atoms, optionally in the presence of other comonomers containing more than one unsaturation, usable as additives to increase the gas oil properties at low temperatures, obtainable by polymerization of the monomers in the presence of catalysts comprising: a bis-cyclopentadienyl derivative having the general formula:
    Type: Application
    Filed: June 22, 2001
    Publication date: January 3, 2002
    Applicant: SOCIETA' ITALIANA ADDITIVI PERCARBURANTI S.R.L.
    Inventor: Paolo Falchi