Patents by Inventor Stephen J. McCarthy

Stephen J. McCarthy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8840779
    Abstract: A supported catalyst comprises a zeolite having a silica to alumina molar ratio of 500 or less, a first metal oxide binder having a crystallite size greater than 200 ? and a second metal oxide binder having a crystallite size less than 100 ?, wherein the second metal oxide binder is present in an amount less than 15 wt % of the total weight of the catalyst.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: September 23, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen J. McCarthy, Wenyih F. Lai, Darryl Donald Lacy, Robert Ellis Kay
  • Publication number: 20140024868
    Abstract: A process is described for producing an M41S family molecular sieve. The process comprises preparing a synthesis mixture capable of forming said molecular sieve in a reactor, which is equipped with a mixer having a Froude number of at least 1, said synthesis mixture having a solids content of at least 20 wt %. The synthesis mixture is heated in the reactor while agitating the mixture with said mixer to form a product mixture comprising water and crystals of said molecular sieve material. Thereafter at least part of the water is removed from the product mixture in the reactor so as to decrease the water content of the product mixture inside the reactor by at least 5 wt %.
    Type: Application
    Filed: March 12, 2012
    Publication date: January 23, 2014
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Wenyih Frank Lai, Stephen J. McCarthy, Robert Ellis Kay
  • Publication number: 20140024523
    Abstract: In a process for producing a molecular sieve material, water, at least one source of an oxide of a tetravalent and/or a trivalent element and at least one structure directing agent is mixed in a reactor equipped with a mixer having a Froude number of at least 1, to produce a molecular sieve synthesis mixture having a solids content of at least about 20 wt %. The molecular sieve synthesis mixture is heated in the reactor while agitating the mixture with said mixer to form crystals of said molecular sieve material and the molecular sieve crystals are subsequently recovered from the reactor.
    Type: Application
    Filed: March 12, 2012
    Publication date: January 23, 2014
    Applicant: EXXONMOBILE CHEMICAL COMPANY-LAW TECHNOLOGY
    Inventors: Wenyih Frank Lai, Robert Ellis Kay, Stephen J. McCarthy
  • Publication number: 20140017331
    Abstract: The invention relates to new amphiphilic linear block copolymers of polysaccharides and polymers. The amphiphilic linear block copolymers do not form a true solution in water and are able to form micelles in selective solvents. Also disclosed are particles, each of which has a shell and a core, and a diameter of about 1 to 1,000 nanometers, and methods of delivering agents or removing substances, e.g., undesirable substances, from a subject or environment, by using these particles.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 16, 2014
    Inventors: Stephen J. McCarthy, Balint Koroskenyi, Robert J. Nicolosi
  • Patent number: 8617383
    Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or with only a high pressure separation so that the dewaxing still occurs under sour conditions. Various combinations of hydrotreating, catalytic dewaxing, hydrocracking, and hydrofinishing can be used to produce fuel products and lubricant base oil products.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: December 31, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Krista Marie Prentice, Michel Daage, Ajit Bhaskar Dandekar, Christopher Gordon Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
  • Publication number: 20130281753
    Abstract: An unbound catalyst composition comprises a zeolite and phosphorus in an amount between about 0.01 wt % and about 3 wt % of the total catalyst composition. The catalyst composition, as calcined at ˜1000° F. (˜538° C.) for at least ˜3 hours, can exhibit (i) 2,2-dimethylbutane diffusivity >1.5×10?2 sec?1 when measured at ˜120° C. and ˜60 torr (˜8 kPa), (ii) coke deactivation rate constant <˜0.15, and (iii) alpha value at least 10, and further exhibiting at least one of: (a) mesoporosity >0.2 ml/g; (b) microporous surface area at least 375 m2/g; and (c) coke deactivation rate constant <0.05 after steaming in ˜100% steam for ˜96 hours at ˜1000° F. (˜538° C.).
    Type: Application
    Filed: October 16, 2012
    Publication date: October 24, 2013
    Inventors: STEPHEN J. McCARTHY, TILMAN W. BEUTEL, MICHEL DAAGE, KARLTON J. HICKEY, BEAU WALDRUP
  • Patent number: 8546286
    Abstract: In a process for producing a metal containing catalyst composition suitable for effecting hydrocarbon hydrogenation and/or dehydrogenation reactions, a catalyst support comprising a porous crystalline material combined with an amorphous binder is treated with an anchoring material capable of bonding to the surface of the support and to a metal component. In addition, a precursor to the metal component is deposited on the surface of the catalyst support and then the treated catalyst support having the precursor deposited thereon is subjected to conditions effective to convert the precursor to the metal component and to cause the anchoring material to bond to the surface of the support and to the metal component.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 1, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen J. McCarthy, Jean W. Beeckman
  • Patent number: 8545694
    Abstract: An improved aromatics saturation process for use with lube oil boiling range feedstreams utilizing a catalyst comprising a hydrogenation-dehydrogenation component selected from the Group VIII noble metals and mixtures thereof on a mesoporous support having aluminum incorporated into its framework and an average pore diameter of about 15 to less than about 40 ?.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: October 1, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen J. McCarthy, Wenyih F. Lai, Sylvain S. Hantzer, Ian A. Cody
  • Patent number: 8444850
    Abstract: The present invention relates to a catalytic process for removing organonitrogen species from hydrocarbon mixtures such as refinery process feedstreams. More particularly, this invention relates to a new operating and catalyst loading strategies based on organonitrogen concentration, composition, and structure.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: May 21, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Teh C. Ho, Stuart L. Soled, Kuangnan Qian, Stephen J. McCarthy, Andrew C. Moreland
  • Patent number: 8425762
    Abstract: An MCM-41 catalyst having a crystalline framework containing SiO2 and a Group IV metal oxide, such as TiO2 or ZrO2 is provided. The catalyst is low in acidity and is suitable for use in processes involving aromatic saturation of hydrocarbon feedstocks.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: April 23, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen J. McCarthy, Wenyih Frank Lai, Michel A. Daage
  • Publication number: 20130096355
    Abstract: The invention involves an integrated process for converting a C1-C4 alcohol to gasoline and/or diesel boiling tinge product, said process comprising: contacting a C1-C4 alcohol feed under selectively dehydrating conditions with a catalyst comprising ?-alumina which is substantially free of terminal hydroxyl groups on tetrahedrally coordinated aluminum sites of the catalyst to form a dialkylether dehydration product; and contacting the dialkylether dehydration product with a zeolite conversion catalyst under conversion conditions to form the gasoline and/or diesel boiling range hydrocarbon product.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 18, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: STEPHEN J. McCARTHY, TILMAN W. BEUTEL
  • Publication number: 20130096358
    Abstract: In a process for producing a phosphorus-modified zeolite catalyst, an aqueous reaction mixture comprising a source of silica and a source of an organic directing agent effective to direct the synthesis of a desired zeolite is heated at a temperature and for a time sufficient to produce crystals of the desired zeolite. Wet zeolite crystals can then be separated from the reaction mixture and, without removing all the water from the wet zeolite crystals, the zeolite can be converted into the ammonium form by ion exchange, and the crystals can be treated with a phosphorus compound. The phosphorus-treated, ammonium-exchanged zeolite can then be formed into a catalyst to be heated in one or more stages to remove the water and organic directing agent from the zeolite crystals and to convert the zeolite to the hydrogen form.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 18, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: WENYIH FRANK LAI, MERCI A. HAMILTON, STEPHEN J. McCARTHY
  • Publication number: 20130068663
    Abstract: Process for the preparation of a catalyst suitable for use in a naphtha reforming process, the process including providing a Y zeolite with an initial SiO2:Al2O3 molar ratio of at least 150, introducing the Y zeolite to a binder to form an intermediate composition, extruding the intermediate composition, reducing the alpha acidity of the extruded composition to provide a low acid composition, and introducing a noble metal to the low acid composition. Processes and systems of converting naphtha to a higher-octane hydrocarbon supply using catalysts, as prepared herein, are also disclosed.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Jean W. BEECKMAN, Stephen J. McCARTHY, Jane C. CHENG
  • Patent number: 8394255
    Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants. The integrated process includes an initial hydrotreatment, hydrocracking, catalytic dewaxing of the hydrocracking effluent, and an option final hydrotreatment.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: March 12, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen J. McCarthy, Gary Paul Schleicher, Krista Marie Prentice, Michel Daage, Christopher Gordon Oliveri, Thomas Francis Degnan, José Guadalupe Santiesteban, Ajit Bhaskar Dandekar, William Joseph Novak, Wenyih F. Lai
  • Patent number: 8366908
    Abstract: An integrated process for producing lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: February 5, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Krista Marie Prentice, Gary Paul Schleicher, Lei Zhang, Timothy Lee Hilbert, Michel A. Daage, Sylvain Hantzer, Wenyih F. Lai, David Mentzer, William Francis Heaney, Christine Nicole Elia, Shifang Luo, Stephen J. McCarthy, Mohan Kalyanaraman
  • Publication number: 20120248008
    Abstract: This invention relates to a process involving hydrocracking and dewaxing of a feedstream in which a converted fraction can correspond to a majority of the product from the reaction system, while an unconverted fraction can exhibit improved properties. In this hydrocracking process, it can be advantageous for the yield of unconverted fraction for gasoline fuel application to be controlled to maintain desirable cold flow properties for the unconverted fraction. Catalysts and conditions can be chosen to assist in attaining, or to optimize, desirable product yields and/or properties.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 4, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Richard Dougherty, William J. Novak, Stuart S. Shih, Stephen J. McCarthy, Michel Daage
  • Patent number: 8128811
    Abstract: Methods for hydroprocessing of hydrocarbon feedstocks, including hydrodesulfurization and hydrodenitrogenation, using rejuvenated supported metallic catalysts are provided. The supported metallic catalysts comprised of a Group VIII metal, a Group VIB metal, are rejuvenated by a process making use of these metals, an organic complexing agent, and optionally an organic additive. The rejuvenation includes stripping and regeneration of a spent or partially spent catalyst, followed by impregnation with metals and at least one organic compound. The impregnated, regenerated catalysts are dried, calcined, and sulfided.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: March 6, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen J. McCarthy, Chuansheng Bai, William G. Borghard, William E. Lewis
  • Publication number: 20110315596
    Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants. The integrated process includes an initial dewaxing of a feed under sour conditions, optional hydrocracking of the dewaxed feed, and a separation to form a first diesel product and a bottoms fraction. The bottoms fraction is then exposed to additional hydrocracking and dewaxing to form a second diesel product and optionally a lubricant base oil product. Alternatively, a feedstock can be hydrotreated, fractionated, dewaxed, and then hydrocracked to form a diesel fuel and a dewaxed, hydrocracked bottoms fraction that is optionally suitable for use as a lubricant base oil.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Krista Marie Prentice, Michel Daage, Ajit Bhaskar Dandekar, Christopher Gordon Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
  • Publication number: 20110315599
    Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or with only a high pressure separation so that the dewaxing still occurs under sour conditions. Various combinations of hydrotreating, catalytic dewaxing, hydrocracking, and hydrofinishing can be used to produce fuel products and lubricant base oil products.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Krista Marie Prentice, Michel Daage, Ajit Bhaskar Dandekar, Christopher Gordon Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
  • Publication number: 20110192766
    Abstract: A supported catalyst comprises a zeolite having a silica to alumina molar ratio of 500 or less, a first metal oxide binder having a crystallite size greater than 200 ? and a second metal oxide binder having a crystallite size less than 100 ?, wherein the second metal oxide binder is present in an amount less than 15 wt % of the total weight of the catalyst.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 11, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stephen J. McCarthy, Wenyih F. Lai, Darryl Donald Lacy, Robert Ellis Kay