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).
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Patent number: 8840779Abstract: 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: GrantFiled: February 7, 2011Date of Patent: September 23, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Wenyih F. Lai, Darryl Donald Lacy, Robert Ellis Kay
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Publication number: 20140024868Abstract: 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: ApplicationFiled: March 12, 2012Publication date: January 23, 2014Applicant: ExxonMobil Chemical Patents Inc.Inventors: Wenyih Frank Lai, Stephen J. McCarthy, Robert Ellis Kay
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Publication number: 20140024523Abstract: 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: ApplicationFiled: March 12, 2012Publication date: January 23, 2014Applicant: EXXONMOBILE CHEMICAL COMPANY-LAW TECHNOLOGYInventors: Wenyih Frank Lai, Robert Ellis Kay, Stephen J. McCarthy
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Publication number: 20140017331Abstract: 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: ApplicationFiled: September 12, 2013Publication date: January 16, 2014Inventors: Stephen J. McCarthy, Balint Koroskenyi, Robert J. Nicolosi
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Patent number: 8617383Abstract: 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: GrantFiled: June 27, 2011Date of Patent: December 31, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Krista Marie Prentice, Michel Daage, Ajit Bhaskar Dandekar, Christopher Gordon Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
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Publication number: 20130281753Abstract: 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: ApplicationFiled: October 16, 2012Publication date: October 24, 2013Inventors: STEPHEN J. McCARTHY, TILMAN W. BEUTEL, MICHEL DAAGE, KARLTON J. HICKEY, BEAU WALDRUP
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Patent number: 8546286Abstract: 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: GrantFiled: December 15, 2009Date of Patent: October 1, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Jean W. Beeckman
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Patent number: 8545694Abstract: 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: GrantFiled: August 17, 2005Date of Patent: October 1, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Wenyih F. Lai, Sylvain S. Hantzer, Ian A. Cody
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Patent number: 8444850Abstract: 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: GrantFiled: August 13, 2010Date of Patent: May 21, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Teh C. Ho, Stuart L. Soled, Kuangnan Qian, Stephen J. McCarthy, Andrew C. Moreland
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Patent number: 8425762Abstract: 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: GrantFiled: December 16, 2008Date of Patent: April 23, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Wenyih Frank Lai, Michel A. Daage
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Publication number: 20130096355Abstract: 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: ApplicationFiled: October 16, 2012Publication date: April 18, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: STEPHEN J. McCARTHY, TILMAN W. BEUTEL
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Publication number: 20130096358Abstract: 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: ApplicationFiled: October 16, 2012Publication date: April 18, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: WENYIH FRANK LAI, MERCI A. HAMILTON, STEPHEN J. McCARTHY
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Publication number: 20130068663Abstract: 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: ApplicationFiled: September 19, 2011Publication date: March 21, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Jean W. BEECKMAN, Stephen J. McCARTHY, Jane C. CHENG
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Patent number: 8394255Abstract: 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: GrantFiled: December 23, 2009Date of Patent: March 12, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: 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
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Patent number: 8366908Abstract: 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: GrantFiled: December 23, 2009Date of Patent: February 5, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: 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
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Publication number: 20120248008Abstract: 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: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Richard Dougherty, William J. Novak, Stuart S. Shih, Stephen J. McCarthy, Michel Daage
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Patent number: 8128811Abstract: 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: GrantFiled: April 3, 2009Date of Patent: March 6, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Chuansheng Bai, William G. Borghard, William E. Lewis
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Publication number: 20110315596Abstract: 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: ApplicationFiled: June 27, 2011Publication date: December 29, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Krista Marie Prentice, Michel Daage, Ajit Bhaskar Dandekar, Christopher Gordon Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
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Publication number: 20110315599Abstract: 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: ApplicationFiled: June 27, 2011Publication date: December 29, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Krista Marie Prentice, Michel Daage, Ajit Bhaskar Dandekar, Christopher Gordon Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
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Publication number: 20110192766Abstract: 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: ApplicationFiled: February 7, 2011Publication date: August 11, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Stephen J. McCarthy, Wenyih F. Lai, Darryl Donald Lacy, Robert Ellis Kay