Patents by Inventor Charles Vadovic

Charles Vadovic 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).

  • FCC catalyst, its preparation and use
    Patent number: 9643166
    Abstract: A process for preparing a catalyst is disclosed. The process generally comprises the steps of: (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite; (b) adding a monovalent acid to the slurry; (c) adjusting the pH of the slurry to a value above about 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: May 9, 2017
    Assignee: Albemarle Netherlands B.V.
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen Laheij, Charles Vadovic
  • FCC catalyst, its preparation and use
    Patent number: 9381502
    Abstract: Process for the preparation of a catalyst comprising the steps of (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite, (b) adding a monovalent acid to the slurry, (c) adjusting the pH of the slurry to a value above 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 5, 2016
    Assignee: Albemarle Netherlands, B.V.
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen LaHeij, Charles Vadovic
  • FCC CATALYST, ITS PREPARATION AND USE
    Publication number: 20150375216
    Abstract: Process for the preparation of a catalyst comprising the steps of (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptised quasi-crystalline boehmite, (b) adding a monovalent acid to the slurry, (c) adjusting the pH of the slurry to a value above 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Dennis Stamires, Paul O'Connor, Erik Jeroen LaHeij, Charles Vadovic
  • Brominated Inorganic Sorbents For Reduction of Mercury Emissions
    Publication number: 20130272936
    Abstract: This invention provides brominated sorbent compositions which are brominated inorganic sorbents having about 0.5 wt % to about 20 wt % bromine therein, based on the total weight of the brominated inorganic sorbent. Methods for preparing brominated sorbent compositions are also provided, as are methods for reducing mercury emissions employing brominated sorbents. In the methods for preparing the brominated inorganic sorbents, the bromine source is elemental bromine and/or hydrogen bromide.
    Type: Application
    Filed: November 14, 2011
    Publication date: October 17, 2013
    Inventors: Christopher J. Nalepa, Qunhui Zhou, Charles Vadovic, Gregory H. Lambeth
  • Additives for removal of metals poisonous to catalysts during fluidized catalytic cracking of hydrocarbons
    Patent number: 8337803
    Abstract: Compositions and methods suitable for removing poisonous metals from hydrocarbons are provided. The compositions comprise hydrotalcite having one or more trapping metals dispersed on the outer surface thereof.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: December 25, 2012
    Assignee: Albemarle Netherlands B.V.
    Inventors: Julie Ann Francis, Charles Vadovic
  • Additives for removal of metals poisonous to catalysts during fluidized catalytic cracking of hydrocarbons
    Patent number: 7993623
    Abstract: Compositions and methods suitable for removing poisonous metals from hydrocarbons are provided. The compositions comprise hydrotalcite having one or more trapping metals dispersed on the outer surface thereof.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 9, 2011
    Assignee: Albemarle Netherlands B.V.
    Inventors: Julie Ann Francis, Charles Vadovic
  • Additives For Removal Of Metals Poisonous To Catalysts During Fluidized Catalytic Cracking Of Hydrocarbons
    Publication number: 20110042271
    Abstract: Compositions and methods suitable for removing poisonous metals from hydrocarbons are provided. The compositions comprise hydrotalcite having one or more trapping metals dispersed on the outer surface thereof.
    Type: Application
    Filed: November 1, 2010
    Publication date: February 24, 2011
    Applicant: ALBEMARLE NETHERLANDS B.V.
    Inventors: Julie Ann FRANCIS, Charles Vadovic
  • FCC Catalyst, Its Preparation And Use
    Publication number: 20100152024
    Abstract: Process for the preparation of a catalyst comprising the steps of (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptised quasi-crystalline boehmite, (b) adding a monovalent acid to the slurry, (c) adjusting the pH of the slurry to a value above 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.
    Type: Application
    Filed: December 20, 2005
    Publication date: June 17, 2010
    Inventors: Dennis Stamires, Paul O'connor, Erik jeroen Laheij, Charles Vadovic
  • ADDITIVES FOR REMOVAL OF METALS POISONOUS TO CATALYSTS DURING FLUIDIZED CATALYTIC CRACKING OF HYDROCARBONS
    Publication number: 20090000991
    Abstract: Compositions and methods suitable for removing poisonous metals from hydrocarbons are provided. The compositions comprise hydrotalcite having one or more trapping metals dispersed on the outer surface thereof.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Julie Ann Francis, Charles Vadovic