Patents by Inventor Dennis Stamires

Dennis Stamires 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).

  • Publication number: 20080296203
    Abstract: Hydrocarbon conversion process comprising the steps of (a) suspending catalyst particles comprising a layered material in a first, polar hydrocarbon, employing conditions such as will cause delamination of the layered material to form a suspension comprising particles with a size of less than 1 micron, (b) optionally adding the suspension to a second hydrocarbon, (c) converting the first and/or the optional second hydrocarbon in the presence of said delaminated layered material, and (d) separating the delaminated material from the first and the optional second hydrocarbon. This process provides an economically desired way of converting hydrocarbons using small catalyst particles.
    Type: Application
    Filed: August 25, 2005
    Publication date: December 4, 2008
    Inventors: Dennis Stamires, Paul O'Connor, Elbert Jan De Graaf
  • Patent number: 7448561
    Abstract: A combined process for the conversion of solid starting particles into solid intermediate particles and reducing the median diameter of the intermediate particles to obtain product particles. This process involves flowing a suspension of starting particles through a series of at least two conversion vessels, thereby converting at least part of the starting particles into intermediate particles, adding a supercritical fluid to one or more of the conversion vessels, thereby forming a supercritical suspension, and releasing pressure from the supercritical suspension, thereby expanding the suspension and converting the intermediate particles into product particles.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: November 11, 2008
    Assignee: Albemarle Netherlands B.V.
    Inventors: Paul O'Connor, Erik Jeroen Laheij, Dennis Stamires, Edwin Mark Berends
  • Publication number: 20080210600
    Abstract: Process for upgrading a liquid hydrocarbon feed comprising the steps of (a) preparing a slurry comprising the hydrocarbon feed having a boiling range above 350° C. and solid particles comprising a rehydratable material, (b) thermally treating said slurry at a temperature in the range of 250 to 550° C., (c) optionally separating the thermally treated slurry into (I) a lower boiling fraction and (ii) a higher boiling fraction containing the solid particles and formed coke, if any, and (d) separating the solid particles and formed coke, if any, from the thermally treated slurry resulting from step b) or the higher boiling fraction of step c).
    Type: Application
    Filed: June 16, 2005
    Publication date: September 4, 2008
    Inventors: Paul O'Connor, Erik Jeroen Laheij, Dennis Stamires, Michael F. Brady, Francisco Rene Mas Cabre, Oscar Rene Chamberlain Pravia, Henrique Soares Cerqueira, Fabio Lopes De Azevedo
  • Publication number: 20080210599
    Abstract: “FCC equilibrium catalysts, even when highly contaminated with vanadium, can be upgraded to make them suitable again for use in catalytic processes, for instance, as catalyst additives in FCC, by employing a process comprising the steps of (a) treating an FCC equilibrium catalyst that contains alumina and zeolite with an acidic solution to obtain an acid-treated equilibrium catalyst, and (b) contacting the acid-treated equilibrium catalyst with an aqueous solution or suspension of a divalent metal compound.
    Type: Application
    Filed: January 6, 2006
    Publication date: September 4, 2008
    Inventors: Paul O'Connor, Erik Jeroen Laheij, Dennis Stamires, Oscar Rene Chamberlain Pravia, Rodolfo Eugenio Roncolatto, Yiu Lau Lam
  • Publication number: 20080039314
    Abstract: The invention relates to a catalyst composition comprising anionic clay, lanthanum (hydr)oxide carbonate, and cerium oxide. This composition can suitably be used in FCC for the reduction of NOx and/or SOx emissions, the reduction of the S and/or N-content in fuels, and as a metal trap. The composition can be prepared by forming a precipitate from a solution comprising a divalent metal salt, a trivalent metal salt, a lanthanum salt, and a cerium salt, calcining the precipitate at 200-800° C., and rehydrating the calcined precipitate in the presence of a carbonate source to form a composition comprising anionic clay, lanthanum (hydr)oxide carbonate, and cerium oxide.
    Type: Application
    Filed: December 6, 2004
    Publication date: February 14, 2008
    Inventors: William Jones, Dennis Stamires, Paul O'Connor, Michael F. Brady
  • Publication number: 20080039313
    Abstract: Process for the preparation of a metal-containing composition, which process comprises the steps of (a) calcining a physical mixture of an anionic clay and a metal additive at a temperature between 200 and 800° C., and (b) rehydrating the calcined product of step a). This process allows the use of insoluble metal additives. It does not require the use of soluble metal additives, which has economic and environmental advantages.
    Type: Application
    Filed: April 26, 2005
    Publication date: February 14, 2008
    Inventors: William Jones, Dennis Stamires, Paul O'Connor, Michael Brady
  • Publication number: 20080032884
    Abstract: Process for the preparation of an additive-containing anionic clay comprising the steps of (a) milling a physical mixture of a divalent metal compound and a trivalent metal compound, (b) calcining the physical mixture at a temperature in the range 200-800° C., and (c) rehydrating the calcined mixture in aqueous suspension, wherein an additive is present in the physical mixture and/or the aqueous suspension of step (c). With this process additive-containing anionic clays with a homogeneous additive distribution can be prepared.
    Type: Application
    Filed: April 26, 2005
    Publication date: February 7, 2008
    Inventors: William Jones, Dennis Stamires, Paul O'Connor, Michael Brady
  • Publication number: 20070287626
    Abstract: Process for the preparation of an oxidic composition comprising a trivalent metal, a divalent metal and—calculated as oxide and based on the total composition—more than 18 wt % of one or more compounds selected from the group consisting of rare earth metal compounds, phosphorus compounds, and transition metal compounds, which process comprises the following steps: (a) preparing a precursor mixture comprising (i) a compound 1 being a trivalent metal compound, (ii) a compound 2 being a divalent metal compound, and (iii) a compound 3 being different from compounds 1 and 2 and being selected from the group consisting of rare earth metal compounds, phosphorus compounds, and transition metal compounds, (b) optionally aging the mixture, without anionic clay being formed, (c) drying the mixture, and (d) calcining the product of step c). The resulting oxidic composition is suitable as a metal trap and SOx sorbent FCC processes.
    Type: Application
    Filed: December 6, 2004
    Publication date: December 13, 2007
    Inventors: William Jones, Dennis Stamires, Paul O'Connor, Michael Brady
  • Publication number: 20070272594
    Abstract: The invention relates to an oxidic catalyst composition comprising 5-60 wt % of a divalent metal, 5-60 wt % of a trivalent metal, and 35-60 wt % of a rare earth metal, calculated as oxide and based on the total weight of the oxidic catalyst composition. The invention also relates to a process for preparing such an oxidic catalyst composition. This composition is suitable as metal trap in FCC processes.
    Type: Application
    Filed: December 6, 2004
    Publication date: November 29, 2007
    Inventors: William Jones, Dennis Stamires, Paul O'Connor, Michael Brady
  • Publication number: 20070274903
    Abstract: Process for the preparation of quasi-crystalline boehmite comprising the steps of: (a) preparing an aqueous precursor mixture comprising a water-insoluble aluminium source; (b) decreasing the pH of the precursor mixture of step (a) by at least 2 units; (c) increasing the pH of the mixture of step (b) by at least 2 units, and (d) aging the mixture of step (c) under hydrothermal conditions to form a quasi-crystalline boehmite. This process provides for the hydrothermal preparation of quasi-crystalline boehmites with high peptizability. The invention therefore further relates to quasi-crystalline boehmites with a high peptizability, measured as the Z-average submicron particle size. This Z-average submicron particle size preferably is less than 500 nm, more preferably less than 300 nm, even more preferably less than 200 nm, and most preferably less than 100 nm.
    Type: Application
    Filed: November 11, 2004
    Publication date: November 29, 2007
    Inventors: Eric Laheij, Paul O'Connor, Dennis Stamires, Edisson Morgado, Marco Santos De Abreu, Marcio Fernandes, Michael Brady
  • Publication number: 20070275847
    Abstract: A composition comprising FCC catalyst particles and additive particles suitable for the reduction of NOx emissions from a FCC regenerator, said additive particles comprising a Mg and Al-containing anionic clay or solid solution, a rare earth metal oxide, alumina and/or silica-alumina, and Y-type zeolite. The invention further relates to a process for preparing such a composition and its use for reducing NOx emissions.
    Type: Application
    Filed: October 12, 2004
    Publication date: November 29, 2007
    Inventors: Christopher Kuehler, Paul O'Connor, Dennis Stamires
  • Publication number: 20070189937
    Abstract: A continuous process for the hydrothermal conversion of a solid starting iron compound selected from the group of iron oxides, iron hydroxides, iron oxyhydroxides, and mixtures thereof into a solid product iron compound with different physical, chemical, and/or structural properties. The process comprises the steps of a) dispersing the solid starting iron compound in a liquid thus forming a suspension, and b) feeding the suspension continuously though one or more agitated conversion vessel(s), in which vessel(s) the solid starting iron compound is converted into the solid product iron compound under hydrothermal conditions.
    Type: Application
    Filed: March 27, 2007
    Publication date: August 16, 2007
    Inventors: Edgar Steenwinkel, Johannes Verlaan, Marieke Spee, Erik Laheij, Paul O'Connor, Dennis Stamires
  • Publication number: 20070191213
    Abstract: Metal-containing composition and use thereof in catalytic reactions, which metal-containing composition is obtainable by contacting a metal hydroxy salt with a solution comprising one or more pH-dependent anions selected from the group consisting of pH-dependent boron-containing anions, vanadium-containing anions, tungsten-containing anions, molybdenum-containing anions, iron-containing anions, niobium-containing anions, tantalum-containing anions, aluminium-containing anions, and gallium-containing anions.
    Type: Application
    Filed: May 19, 2004
    Publication date: August 16, 2007
    Applicant: ALBEMARLE NETHERLANDS B.V.
    Inventors: William Jones, Paul O'Connor, Dennis Stamires
  • Patent number: 7217400
    Abstract: An apparatus and continuous process for the conversion of one solid iron compound to another solid iron compound in a heterogeneous suspension wherein the suspension is formed by dispersing a solid starting iron compound in a liquid that is continuously fed through one or more agitated conversion vessels under hydrothermal conditions and converted to a solid product iron compound having different physical, chemical, or structural properties from the solid starting iron compound.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: May 15, 2007
    Assignee: Albemarle Netherlands B.V.
    Inventors: Edgar Evert Steenwinkel, Johannes Petrus Jozef Verlaan, Marieke Paulyne Renate Spee, Erik Jeroen Laheij, Paul O'Connor, Dennis Stamires
  • Patent number: 7208446
    Abstract: The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. Said QCBs according to the invention may be prepared in several ways. In general, a quasi-crystalline boehmite precursor and an additive are converted to a quasi-crystalline boehmite containing the additive in a homogeneously dispersed state.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 24, 2007
    Assignee: Albemarle Netherlands B. V.
    Inventors: Dennis Stamires, Paul O'Connor, Gregory Pearson, William Jones
  • Publication number: 20070060780
    Abstract: The invention comprises a catalyst composition comprising a pentasil type of zeolite, one or more solid acidic promoters, an additional material selected from the group consisting of an anionic clay, smectite clay, and thermally or chemically modified clay, and optionally a filler and/or binder, methods for making the catalyst composition and a process for using the catalyst in the manufacture of olefins.
    Type: Application
    Filed: June 21, 2006
    Publication date: March 15, 2007
    Inventors: Dennis Stamires, Paul O'Connor, Arja Hakuli-Pieterse, Rajeev Rao, Erik Laheij
  • Publication number: 20060216229
    Abstract: A Ccomposition comprising one or more metal hydroxy salts and a matrix, binder or carrier material, wherein the metal hydroxy salt is a compound comprising (a) as metal either (i) one or more divalent metals, at least one of them being selected from the group consisting of Ni, Co, Ca, Zn, Mg, Fe, and Mn, or (ii) one or more trivalent metal(s), (b) framework hydroxide, and (c) a replaceable anion. This composition has various catalytic applications.
    Type: Application
    Filed: February 10, 2004
    Publication date: September 28, 2006
    Applicant: AKZO NOBEL N.V.
    Inventors: William Jones, Paul O'Connor, Dennis Stamires
  • Publication number: 20060194692
    Abstract: Novel compositions of matter comprising a cationic layered material and a second compound. The second compound has a reflection in its XRD pattern at 18.5 degrees two-theta, and s second reflection at 29 degrees two-theta. The composition of matter may be used in hydrocarbon conversion, purification, and synthesis processes, such as fluid catalytic cracking and hydroprocessing. The materials are especially suitable for the reduction of SOx and NOx emissions and the reduction of the sulfur and nitrogen content in fuels like gasoline and diesel.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 31, 2006
    Inventors: Paul O'Connor, William Jones, Dennis Stamires
  • Publication number: 20060124783
    Abstract: A combined process for the conversion of solid starting particles into solid intermediate particles and reducing the median diameter of the intermediate particles to obtain product particles. This process involves flowing a suspension of starting particles through a series of at least two conversion vessels, thereby converting at least part of the starting particles into intermediate particles, adding a supercritical fluid to one or more of the conversion vessels, thereby forming a supercritical suspension, and releasing pressure from the supercritical suspension, thereby expanding the suspension and converting the intermediate particles into product particles.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 15, 2006
    Inventors: Paul O'Connor, Erik Laheij, Dennis Stamires, Edwin Berends
  • Publication number: 20060096891
    Abstract: The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. Said QCBs according to the invention may be prepared in several ways. In general, a quasi-crystalline boehmite precursor and an additive are converted to a quasi-crystalline boehmite containing the additive in a homogeneously dispersed state.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 11, 2006
    Inventors: Dennis Stamires, Paul O'Connor, Gregory Pearson, William Jones