Patents Represented by Attorney, Agent or Law Firm James H. Takemoto
  • Patent number: 6758963
    Abstract: A process for preparing a lubricating oil basestock containing at least about 90% saturates. The process employs a bulk catalyst comprising at least one non-noble Group VIII metal and two Group VIB metals and wherein said metal catalyst further comprises a non-noble Group VIII molybdate in which at least a portion but less than all of molybdenum is replaced by tungsten.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: July 6, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Slyvain S. Hantzer, Kenneth Lloyd Riley
  • Patent number: 6576584
    Abstract: A method for producing a hydrotreating catalyst which relates to the production of a solid catalyst composed of a carrier impregnated with an active component, to give a catalyst for hydrotreating hydrocarbon oils, which contains a large quantity of a hydrogenation-active component and uniform, crystalline composite metal compound, and shows high catalytic activity.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: June 10, 2003
    Assignee: Tonen Corporation
    Inventors: Masahiko Iijima, Takao Hashimoto, Yoshinobu Okayasu, Takeshi Isoda
  • Patent number: 6475374
    Abstract: A process for preparing a lubricating oil basestock having good low temperature properties. The process includes a first amorphous isomerization catalyst having a pore volume less than 0.99 ml/gm (H2O), an alumina content in the range of 30-50 wt % based on isomerization catalyst and an isoelectric point in the range of 4.5 to 6.5. The isomerization step is followed by a catalytic dewaxing step using an intermediate pore crystalline molecular sieve.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: November 5, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Daniel Paul Leta, Stuart Leon Soled, Gary Brice McVicker, Sylvain Hantzer
  • Patent number: 6436870
    Abstract: A high-activity hydrotreating catalyst containing a uniformly dispersed active component at a high concentration, and particularly useful for deep desulfurization of a hydrocarbon oil for its high hydrodesulfurization activity. The present invention also provides a hydrotreating process using the same catalyst.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: August 20, 2002
    Assignee: Tonen Corporation
    Inventors: Masahiko Iijima, Takao Hashimoto, Yoshinobu Okayasu, Takeshi Isoda
  • Patent number: 6416655
    Abstract: A method for concentrating the amount of alkylated mono-aromatics in a lubricating oil feedstock useful as a feedstock for sulfonation. The method comprises extracting a feedstock rich in aromatics with a solvent selected from NMP, phenol and furfural, said feedstock containing sufficient water to provide a raffinate having a target VI between about 86 and 97 under extraction conditions of treat and temperature selected to achieve the target VI. The raffinate is then hydrofmed and solvent dewaxed.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: July 9, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Christopher J. S. Kent, Anne M. Zinicola
  • Patent number: 6383366
    Abstract: Waxy feeds are treated under hydroisomerization conditions to produce good yields of an isomerate product of high VI by using a silica-alumina based catalyst in which the silica-alumina has a pore volume less of 0.99 ml/gm (H2O), an alumina content in the range of 35 to 55 wt % and an isoelectric point in the range of 4.5 to 6.5. A lube fraction of the isomerate is dewaxed to provide a lube basestock of high VI. The silica-alumina may be modified with a rare earth oxide or yttria or boria or magnesia in which instance the modified catalyst has an isoelectric point greater than but no more than 2 points greater than base the silica-alumina.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: May 7, 2002
    Assignee: Exxon Research and Engineering Company
    Inventors: Kenneth Lloyd Riley, William John Murphy, Ian Alfred Cody, Stuart Leon Soled, Gary Brice McVicker, Sabato Miseo
  • Patent number: 6352639
    Abstract: An atomizing gas, such as steam, and a hot fluid comprising a hot liquid to be atomized, are passed under pressure, through separate fluid conduits in a heat exchange means, in which the hot liquid heats the steam to a superheat temperature, by indirect heat exchange. The superheated steam is then injected into the hot fluid, which comprises a two-phase fluid comprising steam and the hot liquid, subsequent to the superheated steam injection. The two-phase fluid is passed through an atomizing means, such as an orifice, into a lower pressure atomizing zone, which causes the steam to expand and atomize the liquid into a spray of liquid droplets. The two-phase fluid is formed before or as a consequence of the superheated steam injection and is preferably steam-continuous when passed through the atomizing means. This process is useful for atomizing a hot feed oil for a fluid cat cracking (FCC) process.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: March 5, 2002
    Assignee: Exxon Research and Engineering Company
    Inventors: Jackson I. Ito, Leonard Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan
  • Patent number: 6325918
    Abstract: A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hydrofinishing step.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: December 4, 2001
    Assignee: ExxonMobile Research and Engineering Company
    Inventors: Ian A. Cody, Douglas R. Boate, Sandra J. Linek, William J. Murphy, John E. Gallagher, Gary L. Harting
  • Patent number: 6322692
    Abstract: A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone, and a lubricating oil basestock produced by said process.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: November 27, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ian A. Cody, Douglas R. Boate, Sandra J. Linek, William J. Murphy, John E. Gallagher, Alberto Ravella, Richard A. Demmin
  • Patent number: 6294082
    Abstract: A process for upgrading a hydrocarbon oil is provided which comprises introducing the oil and an aromatic extraction solvent containing 0.1 to 10 vol % water into an extraction zone for contact of the oil and solvent therein whereby an extract solution is formed; and injecting water into the extraction zone at a point below that at which the extraction solvent is introduced. The injected water is injected substantially countercurrent to the extraction solvent at a velocity of about 0.5 to 3 ft/sec in an amount ranging from about 0.1 to about 10 LV% based on the amount of extract solution being processed.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: September 25, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Keith K. Aldous, Joseph P. Boyle, Michael B. Davis
  • Patent number: 6294077
    Abstract: The present invention is a process for producing a high viscosity index and low pour point lubricating oil base stock which comprises catalytically converting a hydrotreated hydrocarbon lube oil feedstock containing waxy paraffins in the presence of hydrogen and in the presence of a low acidity ZSM-5 catalyst having a highly dispersed noble metal component. The ZSM-5 catalyst is subjected to controlled acidity reduction to an alpha value below 15 prior to incorporation of the noble metal component.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: September 25, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Richard C. Dougherty, Dominick N. Mazzone, Richard F. Socha, Hye Kyung Cho Timken
  • Patent number: 6099719
    Abstract: A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by solvent extracting a feedstock to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconverting the solvent dewaxed raffinate in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: August 8, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Ian A. Cody, William J. Murphy, Thomas J. Ford
  • Patent number: 6096189
    Abstract: A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: August 1, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ian A. Cody, Douglas R. Boate, Sandra J. Alward, William J. Murphy, John E. Gallagher, Alberto Ravella, Richard A. Demmin
  • Patent number: 6059955
    Abstract: The present invention is directed to an easily biodegradable low viscosity, low Noack volatility lube oil material having a viscosity index (VI) in the range of about 110-145, >98% saturates useful as lube oil basestock, automatic transmission fluid (ATF) basestock or blending stock. The lube oil material is produced by the isomerization of a wax feed having a viscosity of from 4 to 10 cSt at 100.degree. C. and containing less than about 25% oil in wax.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: May 9, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ian A. Cody, William J. Murphy, David Dumfries
  • Patent number: 6022471
    Abstract: A FCC catalyst having improved coke selectivity and a FCC process for converting hydrocarbon feedstocks to lower boiling products. The catalyst comprises a crystalline aluminosilicate zeolite, gibbsite, rare earth metal compound and a silica matrix prepared from at least one of a silica sol made by an ion-exchange process and an acidic silica sol prepared by mixing sodium silicate, an acid and an aluminum salt of an acid.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: February 8, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: William A. Wachter, Vinh T. Nguyen
  • Patent number: 5976353
    Abstract: A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hydrofinishing step.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: November 2, 1999
    Assignee: Exxon Research and Engineering Co
    Inventors: Ian A. Cody, Douglas R. Boate, Sandra J. Alward, William J. Murphy, John E. Gallagher, Gary L. Harting
  • Patent number: 5977425
    Abstract: It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: November 2, 1999
    Assignee: Exxon Research and Engineering Co
    Inventors: Dee A. Brandes, David N. Zinkie, Sandra Jane Alward, William J. Murphy, Ian A. Cody, Thomas J. Ford
  • Patent number: 5961817
    Abstract: A FCC catalyst having improved coke selectivity and greater catalyst strength, and a FCC process for converting hydrocarbon feedstocks to lower boiling products. The catalyst comprises a crystalline aluminosilicate zeolite, gibbsite, and a silica matrix prepared from at least one of a silica sol made by an ion-exchange process and an acidic silica sol prepared by mixing sodium silicate, an acid and an aluminum salt of an acid.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: October 5, 1999
    Assignee: Exxon Research and Engineering Company
    Inventors: William A. Wachter, Stuart L. Soled, Nikos J. Maris, Mark P. Lapinski, Carol P. Fitzpatrick
  • Patent number: 5935416
    Abstract: A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two-step, single-stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hydrofinishing step. The effluent from the cold hydrofinishing step is then catalytically dewaxed or in the alternative, solvent dewaxed followed by catalytic dewaxing.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: August 10, 1999
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ian A. Cody, Douglas R. Boate, William J. Murphy, Daniel P. Leta
  • Patent number: 5935417
    Abstract: A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: August 10, 1999
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ian A. Cody, Douglas R. Boate, William J. Murphy, Daniel P. Leta