Patents by Inventor Robert Scott Smith

Robert Scott Smith 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: 7906696
    Abstract: This invention is for a catalyst for conversion of a hydrocarbonaceous feed. The catalyst is a zeolite aluminosilicate with a silicon to aluminum molar ratio from about 70:1 to about 100:1 on which a noble metal has been deposited. The zeolite catalyst may contain other optional tetravalent and trivalent elements in the zeolite framework. The zeolite structure may be MFI, FAU, TON, MFL, VPI, MEL, AEL, AFI, MWW or MOR. The catalyst is synthesized by preparing a zeolite containing aluminum, silicon and, optionally, other elements, such as germanium, in the framework, depositing a noble metal, such as platinum, on the zeolite and calcining the zeolite. The catalyst may be used for aromatization of alkanes to aromatics. One embodiment is a MFI zeolite catalyst which may be used for the aromatization of alkanes having two to six carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: March 15, 2011
    Assignee: Saudi Basic Industries Corporation
    Inventors: Gopalakrishnan G. Juttu, Robert Scott Smith
  • Publication number: 20080177119
    Abstract: This invention is for a catalyst for conversion of a hydrocarbonaceous feed. The catalyst is a zeolite aluminosilicate with a silicon to aluminum molar ratio from about 70:1 to about 100:1 on which a noble metal has been deposited. The zeolite catalyst may contain other optional tetravalent and trivalent elements in the zeolite framework. The zeolite structure may be MFI, FAU, TON, MFL, VPI, MEL, AEL, AFI, MWW or MOR. The catalyst is synthesized by preparing a zeolite containing aluminum, silicon and, optionally, other elements, such as germanium, in the framework, depositing a noble metal, such as platinum, on the zeolite and calcining the zeolite. The catalyst may be used for aromatization of alkanes to aromatics. One embodiment is a MFI zeolite catalyst which may be used for the aromatization of alkanes having two to six carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Inventors: Gopalakrishnan G. Juttu, Robert Scott Smith
  • Patent number: 7247593
    Abstract: A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: July 24, 2007
    Assignee: Saudi Basic Industries Corporation
    Inventors: Gopalakrishnan G. Juttu, Robert Scott Smith
  • Patent number: 7186871
    Abstract: Aromatization of alkanes having one to four carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes (BTX), uses a catalyst of a crystalline zeolite on which platinum has been deposited, specifically a platinum-containing ZSM-5. A byproduct of the process is a light gas fraction of methane and ethane. The use of a platinum-containing ZSM-5 catalyst in an alkane aromatization process, such as the Cyclar process, suppresses the formation of methane and increases selectivity to BTX. The high content of ethane relative to methane in the light gas fraction allows this process effluent to be a feedstream for a cracker.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: March 6, 2007
    Assignee: Saudi Basic Industries Corporation
    Inventors: Scott F. Mitchell, Gopalakrishnan G. Juttu, Robert Scott Smith
  • Patent number: 7186872
    Abstract: A catalyst of a gallium zeolite on which platinum (Pt/Ga-ZSM-5) has been deposited may be used for aromatization of alkanes having two to six carbon atoms per molecule, such as ethane, propane, butane, etc., to aromatics, such as benzene, toluene and xylenes (BTX). The gallium zeolite contains gallium and silicon in the framework of the zeolite structure. The zeolite structure may be of MFI, FAU, TON, MFL, VPI, MEL, AEL, AFI, MWW or MOR, but preferably, the zeolite has a MFI structure, more preferably is ZSM-5 MFI zeolite. According to the IUPAC recommendations, an example of the sodium form of the zeolite would be represented as: |Nax·(H2O)z|[GaxSiyO2y+3x/2]?MFI where x=0.1–25; y=60–100; and z=0.1–10. Platinum may be deposited on the gallium zeolite by ion exchange or impregnation.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: March 6, 2007
    Assignee: Saudi Basic Industries Corporation
    Inventors: Gopalakrishnan G. Juttu, Robert Scott Smith
  • Patent number: 6864203
    Abstract: A process is provided for the alkylation, transalkylation, or isomerization of aromatic hydrocarbons. The processes comprises contacting aromatic hydrocarbons under conversion conditions with a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first crystals of a first large pore zeolite which are bound together by second crystals of a second zeolite.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 8, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Dan Eldon Hendriksen, Gary David Mohr, Johannes Petrus Verduijn, Robert Scott Smith
  • Publication number: 20040192539
    Abstract: A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process.
    Type: Application
    Filed: March 31, 2004
    Publication date: September 30, 2004
    Applicant: Saudi Basic Industries Corporation
    Inventors: Gopalakrishnana G. Juttu, Robert Scott Smith
  • Patent number: 6784333
    Abstract: A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: August 31, 2004
    Assignee: Saudi Basic Industries Corporation
    Inventors: Gopalakrishnan G. Juttu, Robert Scott Smith
  • Publication number: 20040028584
    Abstract: A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene and xylene. The catalyst is an aluminum-silicon-germanium zeolite on which platinum has been deposited. Germanium is in the framework of the crystalline zeolite. Platinum is deposited on the zeolite. The catalyst may be supported on magnesia, alumina, titania, zirconia, thoria, silica, boria or mixtures thereof. The catalyst may contain a sulfur compound on the surface of the catalyst. The sulfur compound may be added to the catalyst in a pretreatment process or introduced with the hydrocarbon feed to contact the catalyst during the aromatization process.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventors: Gopalakrishnan G. Juttu, Robert Scott Smith
  • Patent number: 6627577
    Abstract: There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversion processes include the conversion of oxygenates to olefins, dewaxing, reforming, dealkylation, dehydrogenation, transalkylation, alkylation, and isomerization.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: September 30, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Robert Scott Smith, Gary David Mohr, Jannetje Maatje van den Berge
  • Publication number: 20030027710
    Abstract: There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversion processes include the conversion of oxygenates to olefins, dewaxing, reforming, dealkylation, dehydrogenation, transalkylation, alkylation, and isomerization.
    Type: Application
    Filed: May 31, 2002
    Publication date: February 6, 2003
    Inventors: Robert Scott Smith, Gary David Mohr, Jannetje Maatje Van den Berge
  • Patent number: 6473749
    Abstract: A system for managing file content, such as Microsoft Powerpoint for Windows™ presentation slides, is provided. The system includes an upload interface that can receive files, such as a file containing slides, from an upload client. The upload interface can extract data structures, such as slides or images, from each file, and index data from each data structure. The system also includes an index system that is connected to the upload interface. The index system can receive the index data from the upload interface and store the index data. A content storage system connected to the upload interface and the index system can receive data structures for storage from the upload interface system, and can provide a storage address for locating each data structure to the index system. A download interface is connected to the content storage system, and can be used to identify data structures matching a query and to download the data structures to a download client.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: October 29, 2002
    Inventors: Robert Scott Smith, Dale Penndorf, Jason McMinn, Thomas Mathew, Doug Wilson
  • Publication number: 20020137977
    Abstract: A process is provided for the alkylation, transalkylation, or isomerization of aromatic hydrocarbons. The processes comprises contacting aromatic hydrocarbons under conversion conditions with a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first crystals of a first large pore zeolite which are bound together by second crystals of a second zeolite.
    Type: Application
    Filed: February 28, 2002
    Publication date: September 26, 2002
    Inventors: Dan Eldon Hendriksen, Gary David Mohr, Johannes Petrus Verduijn, Robert Scott Smith
  • Patent number: 6281162
    Abstract: A process for catalytically isomerizing olefins, particularly for isomerizing alkenyl bridged ring compounds to the corresponding alkylidene bridged ring compounds. The catalyst is prepared by forming a dispersion of a metallic alkali metal on a support with simultaneous exposure to oxygen.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: August 28, 2001
    Assignee: Exxon Mobil Chemical Patents Inc
    Inventors: Robert Scott Smith, Jos Peter Wristers
  • Patent number: 6160191
    Abstract: A process for converting hydrocarbons by contacting a hydrocarbon feedstream under hydrocarbon conversion conditions with a large crystal zeolite catalyst. The large crystal zeolite of the catalyst used in the hydrocarbon conversion process is made by heating an aqueous zeolite synthesis mixture under agitation to a temperature equal to or less than the effective nucleation temperature of the synthesis mixture. After this step, the aqueous synthesis mixture is heated in the absence of agitation to a temperature equal to or greater than the effective nucleation temperature of the aqueous zeolite synthesis mixture. The process finds particular application in hydrocarbon conversion processes where reduced non-selective acidity is important for reaction selectivity and/or the maintenance of catalyst activity, e.g., toluene disproportionation, dealkylation, alkylation, and transalkylation.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: December 12, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert Scott Smith, Johannes Petrus Verduijn, deceased, by Jannetje Maatje van den Berge, executrix, Gary David Mohr, Thomas Herman Colle
  • Patent number: 6111157
    Abstract: A process is provided for the alkylation, transalkylation, or isomerization of aromatic hydrocarbons. The processes comprises contacting aromatic hydrocarbons under conversion conditions with a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first crystals of a first large pore zeolite which are bound together by second crystals of a second zeolite.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: August 29, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Dan Eldon Hendriksen, Gary David Mohr, Johannes Petrus Verduijn, Robert Scott Smith
  • Patent number: 6075175
    Abstract: A process for catalytically isomerizing olefins, particularly for isomerizing alkenyl bridged ring compounds to the corresponding alkylidene bridged ring compounds. The catalyst is prepared by forming a dispersion of a metallic alkali metal on a support with simultaneous exposure to oxygen.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: June 13, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Robert Scott Smith, Jos Peter Wristers
  • Patent number: 6051746
    Abstract: The invention relates to a process for converting oxygenated organic material, to olefins using small pore molecular sieve catalysts. More particularly, the invention relates to a method for converting oxygenated organic material to olefins with improved the olefin yields and decreased yields of methane and other light saturate byproducts. The improved yield slate is achieved by treating the small pore molecular sieve catalyst with a modifier selected from the group consisting of polynuclear aromatic heterocyclic compounds with at least three interconnected ring structures having at least one nitrogen atom as a ring substituent, each ring structure having at least five ring members, decomposed derivatives of said polynuclear aromatic heterocyclic compound, and mixtures thereof.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: April 18, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Hsiang-ning Sun, Stephen Neil Vaughn, Robert Scott Smith
  • Patent number: 5998686
    Abstract: A dehydrocyclo-oligomerization process is provided for converting aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions which a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. If the zeolite bound zeolite catalyst is selectivated, the process can produce greater than equilibrium amounts of paraxylene.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: December 7, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Kenneth R. Clem, Gary D. Mohr, Robert Scott Smith
  • Patent number: 5994603
    Abstract: A process is provided for the production of paraxylene by the methylation of toluene in the presence of a zeolite bound zeolite catalyst. The catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. When used to methylate toluene to para-xylene, the zeolite bound zeolite catalyst has a para-xylene selectivity greater than thermodynamic equilibrium. This selectivity can be enhanced by selectivating the catalyst.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: November 30, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Gary D. Mohr, Robert Scott Smith