Patents Examined by Alexa A. Doroshenk
  • Patent number: 7141220
    Abstract: This invention presents a sulphurous acid generator which employs a combination of novel blending, contact and mixing mechanisms which maximize the efficiency and duration of contact between sulphur dioxide gas and water to form sulphurous acid in an open nonpressurized system, without employing a countercurrent absorption tower. The present invention also incorporates a novel high temperature concrete for use in constructing portions of the present invention.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: November 28, 2006
    Inventor: Edward W. Jackson
  • Patent number: 7118717
    Abstract: Provided are improved carbon monoxide removal articles and processes for treating hydrogen gas streams to achieve very low threshold levels of carbon monoxide. The articles have a substrate with an inlet end, an outlet end, a length extending between the inlet end to the outlet end, wall elements and a plurality of cells defined by the wall elements. A first layer is deposited on the wall elements from the inlet end and extending at least partially toward the outlet end. The first layer has a preferential carbon monoxide oxidation catalyst. A second layer contains a methanation catalyst, and is deposited on at least part of the first layer from the outlet end. The second layer has a length that is about 10–70% of the substrate length.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: October 10, 2006
    Assignee: Engelhard Corporation
    Inventor: Lawrence Shore
  • Patent number: 7118715
    Abstract: A baffle-style stripper for an FCC process comprising sloped baffles in which a greater volumetric flow rate of stripping medium permeates openings in a bottom section of the baffle than through a top section of the baffle for low catalyst flux stripping operations. When low catalyst flux is used, the catalyst runs from baffle to baffle closer to the bottom edge of the baffle. Hence, more fluidization from stripping medium is concentrated near the lower edge of the baffle. The greater fluidization at the bottom section of the baffle is accomplished by providing greater opening area per baffle area in the lower section of the baffle than in the top section of the baffle.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: October 10, 2006
    Assignee: UOP LLC
    Inventors: Brian W. Hedrick, Thuy Khanh T. Nguyen
  • Patent number: 7112307
    Abstract: A riser reactor system for conversion of hydrocarbon feedstock to ethylene and propylene is described. The riser reactor system prevents riser reactors with a plurality of inlet ports for feeding gases having different compositions and for controlling the residence time of a gas catalyst within the riser reactor.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: September 26, 2006
    Assignee: UOP LLC
    Inventors: Hayim Abrevaya, Joel T. Walenga, Michael A. Schultz, Anil R. Oroskar
  • Patent number: 7101514
    Abstract: An improved chemical mixing micro-device with features on the micro- and nano-scale. The micro-device is comprised of at least one chemical inlet port and one chemical outlet port, a micro-evaporator, a micro-chamber and a micro-initiator. Also, a method of mixing at least one chemical in an evaporative mixing and/or reacting chamber is disclosed.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: September 5, 2006
    Inventors: Po-Hao Adam Huang, Chih-Ming Ho
  • Patent number: 7008459
    Abstract: A process and apparatus for coal pyrolysis pretreatment. The apparatus is made up of a pretreatment vessel for holding a bed of coal particles, a preheater for heating the bed of coal particles to a temperature below the coal pyrolysis temperature range and an oxygen remover for removing oxygen released from the heated coal particles. The apparatus can also have a flue gas source as an oxygen removal sweep gas to the bed of coal, a collector for collecting non-condensable combustible gases, and the preheater having a furnace holding ceramic balls which are circulated from the furnace to the bed of coal particles. The process involves heating the bed of coal particles to a temperature below the coal pyrolysis temperature range and preventing air from contacting the bed of coal particles in addition to collecting non-condensable combustible gases or the preheating step accomplished by having a furnace holding ceramic balls which are circulated from the furnace to the bed of coal particles.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: March 7, 2006
    Inventors: Arthur P. Fraas, Richard L. Furgerson, Harold L. Falkenberry
  • Patent number: 6991767
    Abstract: A method and apparatus for the debonding and sand core removal of sand cores from cast parts, the heat treating of metal parts and the removal of organic contamination from metal parts, which is utilizing a fluid bed furnace having an improved fluidizing gas distributor which discharges fluidized gas in a downward direction away from the parts in the fluidized bed.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: January 31, 2006
    Assignee: Procedyne Corp.
    Inventors: H. Kenneth Staffin, Edward P. Traina, Giovanni Rubino
  • Patent number: 6989135
    Abstract: A Fischer-Tropsch-based hydrocarbon conversion process involves compressing air in a compressor section of a gas turbine, delivering a portion of the compressed air to a combustor of the gas turbine, delivering a portion of the compressed air to a Fischer-Tropsch hydrocarbon conversion unit, extracting thermal energy from the combustor and delivering it to the Fischer-Tropsch hydrocarbon conversion unit, converting light hydrocarbons into heavier hydrocarbons in the Fischer-Tropsch hydrocarbon conversion unit, and delivering combustion gases from the combustor to an expansion section of the gas turbine. A heat recovery steam generator (HRSG) may also be used to harness waste heat from the expansion section. A conversion system for converting light hydrocarbons into heavier hydrocarbons includes a turbine from which heat energy is removed and used to assist in converting hydrocarbons and whereby greater throughput of the turbine is possible.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: January 24, 2006
    Assignee: Syntroleum Corporation
    Inventor: Paul E. Kennedy
  • Patent number: 6984365
    Abstract: A quench zone mixing apparatus that occupies a low vertical height and has an improved mixing efficiency and fluid distribution across the catalyst surface includes a swirl chamber, a rough distribution network, and a distribution apparatus. In the swirl chamber, reactant fluid from a catalyst bed above is thoroughly mixed with a quench fluid by a swirling action. The mixed fluids exit the swirl chamber through an aperture to the rough distribution system where the fluids are radially distributed outward across the vessel to the distribution apparatus. The distribution apparatus includes a plate with a number of bubble caps and associated drip trays that multiply the liquid drip stream from the bubble caps to further symmetrically distribute the fluids across the catalyst surface. Alternatively, deflector baffles may be associated with the bubble caps to provide a wider and more uniform liquid distribution below the plate.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: January 10, 2006
    Assignee: Fluor Technologies Corporation
    Inventors: Douglas E. Nelson, Robert W. Kuskie, F. Emmet Bingham
  • Patent number: 6979426
    Abstract: In a first aspect, systems and methods for producing biodiesel fuel include a modular production unit incorporated onto a single platform or into a housing for ease of relocatability. The modular production unit preferably includes a mixing unit, a reactor unit, a separation unit, a distillation unit, and a filtering unit, all incorporated onto or into a self-contained platform or housing that is able to be easily relocated. In a second aspect, the modular production unit is combined with additional fixed and/or relocatable components to provide a biodiesel processing plant. In a third aspect, a raw materials processing system and method includes a roller barrel adapted for recovery, transportation, and introduction of recycled oil feedstock into a biodiesel manufacturing process. The raw materials processing system preferably includes a hot box for filtering and heating the raw recycled oil feedstock.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: December 27, 2005
    Assignee: Biodiesel Industries
    Inventors: Russell Teall, Ronald Franklin Sickels
  • Patent number: 6977002
    Abstract: A reforming catalyst is composed of a plurality of catalyst layers arranged in series, and when started from a low temperature, preheated air is supplied in parallel to a point upstream of each catalyst layer, thereby the catalyst in each layer is self-heated simultaneously so that the catalyst is heated. After the catalyst is heated, feed of air is temporarily stopped, and supply of fuel gas is started. Next, air is supplied while controlling its flow rate so that temperatures in the catalyst do not exceed the temperature that the catalyst can withstand. Thus, no other special equipment is needed, and the catalyst can be started quickly (cold start). The catalyst can be made compact enough to install it in a electric vehicle.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: December 20, 2005
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hidetoshi Takimoto, Minoru Mizusawa, Yasuhiko Fukuchi, Yasunori Kotani
  • Patent number: 6974559
    Abstract: A method and apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system are provided. In one embodiment, apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system includes a low pressure storage vessel coupled to a pressure vessel that defines a high pressure side of the apparatus, where the determination of the amount of catalyst transferred is made on the low pressure side of the apparatus.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: December 13, 2005
    Assignee: Intercat Equipment, Inc.
    Inventor: Martin Evans
  • Patent number: 6972119
    Abstract: A hydrogen producing apparatus comprising: a reforming section having a reforming catalyst which causes a reaction between a carbon-containing organic compound as a feedstock and water; a feedstock supply section for supplying the feedstock to the reforming section; a water supply section for supplying water to the reforming section; a heating section for heating the reforming catalyst; a shifting section having a shift catalyst which causes a shift reaction between carbon monoxide and water contained in a reformed gas supplied from the reforming section; and a purifying section having a purifying catalyst which causes oxidation or methanation of carbon monoxide contained in a gas supplied from the shifting section, wherein the shift catalyst comprises a platinum group metal and a metal oxide.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: December 6, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Taguchi, Takeshi Tomizawa, Kunihiro Ukai, Toshiyuki Shono, Koichiro Kitagawa, Tetsuya Ueda, Seiji Fujihara, Yutaka Yoshida
  • Patent number: 6964727
    Abstract: The present invention features a coke drum de-heading system comprising (a) at least one coke drum having an orifice therein; (b) a de-header valve removably coupled to the coke drum designed to de-head the coke drum; and (c) an exchange system, including an upper and lower bonnet and other elements and members adapted to integrate the de-heading system, and particularly the de-header valve, into the manufacturing system.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: November 15, 2005
    Assignee: Curtiss-Wright Flow Control Corporation
    Inventor: Ruben F. Lah
  • Patent number: 6960325
    Abstract: A catalytic hydrocracking reactor vessel for the conversion of a hydrogen gas and fossil fuel feedstream to light liquid hydrocarbons. The reactor vessel comprises reactor cup riser with a helical cyclonic separator conduit for separating a liquid and vapor product stream to provide an essentially vapor-free liquid recycle stream, a grid plate bubble cap with a tapered bell cap wall housing having serrated edges for producing small hydrogen bubbles of increased total surface area of bubbles at lower pressure drop, optionally a feedstream inlet pipe sparger containing rows of downward directed slots for even distribution of the feedstream across the cross-sectional area of the reactor and providing free drain of solid particles from the sparger, and optionally a liquid recycle inlet distributor containing vertically curved plates for creating a whirling motion in the liquid recycle stream for better mixing with the feedstream with minimal solids settling.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 1, 2005
    Assignee: Hydrocarbon Technologies
    Inventors: Thomas Kao, Robert Chang
  • Patent number: 6955695
    Abstract: This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the heating value of the converted hydrocarbons is recovered as heating value of the product methane. The liquid feed is distributed over a fluidized solid particulate catalyst containing alkali metal and carbon as petroleum coke at elevated temperature and pressure from the lower stage and transported to the upper stage of a two-stage reactor. Particulate solids containing carbon and alkali metal are circulated between the two stages. Superheated steam and recycled hydrogen and carbon monoxide are fed to the lower stage, fluidizing the particulate solids and gasifying some of the carbon. The gas phase from the lower stage passes through the upper stage, completing the reaction of the gas phase.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: October 18, 2005
    Assignee: Petro 2020, LLC
    Inventor: Nicholas Charles Nahas
  • Patent number: 6936227
    Abstract: A feed-dispersion system for hydrocarbon feeds of fluid catalytic cracking units is described, which comprises: a feed-injection system made up of two concentric conduits, where the atomization fluid flows through the inner conduit, while the liquid feed flows through the annular space formed by the outer surface of the inner conduit and the inner surface of the outer conduit; an atomization unit having nozzles arranged in rows, with one row having central nozzles connected to the inner conduit for atomization fluid, and two or more rows of side nozzles, connected to the outer feed conduit, the central nozzles and side nozzles of the atomization unit being geometrically placed so that the energy of the atomization fluid is fully transferred by contact to the flow of feed, this resulting in the complete atomization of the feed; a mixing chamber formed by the edges of the central nozzles, the dimensions of which are able to prevent the coalescence of the formed oil droplets.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: August 30, 2005
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Edson José Joaquim De Souza, Aurélio Medina Dubois, Cláudio Damiance Baptista, José Geraldo Furtado Ramos, José Loreto Moreira De Faria, Moacir José Bampi
  • Patent number: 6932950
    Abstract: A tubular reactor (2) for catalytic reactions with a heat carrier that inside a reactor jacket (10) circulates around a contact tube bundle (8), which extends between a tube plate (4; 6; 80; 82) at the reaction gas inlet side and one at the reaction gas outlet side with gas inlet and gas outlet hoods (12, 14) spanning the face sides of the two tube plates and containing reaction-inhibiting media in the zone of the tube plate on the gas inlet side, characterize themselves in that the reaction-inhibiting media consist entirely or in part of a heat insulation layer (46; 50; 64; 80) with openings for the tube cross-sections on at least one of the two sides of the respective tube plate (4; 60; 82). In this manner, either the respective tube plate (4; 60; 82) is insulated against the hot heat carrier or the reaction gas entering into the reactor is prevented from having contact with the comparatively hot tube plate in order to prevent harmful secondary reactions at the reactor inlet.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: August 23, 2005
    Assignee: Man DWE GmbH
    Inventor: Friedrich Guetlhuber
  • Patent number: 6929668
    Abstract: The invention concerns a method for producing a gas mixture containing hydrogen and carbon monoxide, and optionally nitrogen, from at least a hydrocarbon such as methane, propane, butane or LPG or natural gas, which comprises performing a partial catalytic oxidation of one or several hydrocarbons, at a temperature of 500° C., at a pressure of 3 to 20 bars, in the presence of oxygen or a gas containing oxygen, such as air, to produce hydrogen and carbon monoxide. Recuperating the gas mixture, which can subsequently be purified or separated, by pressure swing adsorption, temperature swing adsorption or by permeation, to produce hydrogen having a purity of at least 80% and a residue gas capable of supplying a cogeneration unit. In another embodiment, the gas mixture can subsequently be purified of its water vapor impurities and carbon dioxide to obtain a thermal treatment atmosphere containing hydrogen, carbon monoxide and nitrogen.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: August 16, 2005
    Assignee: L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Cyrille Millet, Daniel Gary, Philippe Arpentinier
  • Patent number: 6926868
    Abstract: A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent of a slurry loop reactor containing a flow of slurry therein, comprising a discharge conduit extending a distance into the loop reactor; the conduit having a longitudinal axis and an opening inside the loop reactor; at least a portion of the conduit being curved along its longitudinal axis inside the loop reactor; and the opening substantially facing the flow of the slurry, wherein the discharge conduit is located within a lower leg of the loop reactor such that a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank wherein volatile inert diluent and unreacted monomers are removed and the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: August 9, 2005
    Inventors: James Austin Kendrick, Thomas W. Towles, Scott Thomas Roger, Robert G. DePierri