Fluidized Bed Patents (Class 422/139)
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Patent number: 8778038Abstract: A method for controlling the peak temperature of a fluid gasification zone used for the gasification of carbonaceous materials to a syngas. Pulsed oxygen is used to control the peak temperature of the gasification zone and to avoid hot spots in the gasifier.Type: GrantFiled: February 10, 2012Date of Patent: July 15, 2014Assignee: Syngas Technology, LLCInventors: Duane A. Goetsch, Jacqueline R. Hitchingham, Lloyd R. White
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Patent number: 8779225Abstract: A process or a system for converting a solid biomass material is provided, comprising contacting the solid biomass material with a catalytic cracking catalyst at a temperature of more than 400° C. in a riser reactor to produce one or more cracked products. The riser reactor contains: a riser reactor pipe, which riser reactor pipe has a diameter that increases in a downstream direction; and a bottom section connected to the riser reactor pipe, which bottom section has a larger diameter than the riser reactor pipe.Type: GrantFiled: April 23, 2012Date of Patent: July 15, 2014Assignee: Shell Oil CompanyInventors: Andries Quirin Maria Boon, Johan Willem Gosselink, John William Harris, Andries Hendrik Janssen, Sander Van Paasen, Colin John Schaverien, Nicolaas Wilhelmus Joseph Way
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Patent number: 8771629Abstract: Included are a nano-carbon material production unit for producing a nano-carbon material using a fluidized catalyst formed by granulating a carrier supporting an active component, an acid treatment unit for dissolving and separating a catalyst by an acid solution by feeding a catalyst-containing nano-carbon material into the acid solution, and a pH adjustment unit, which is an anti-agglomeration treatment unit, provided on a downstream side of the acid treatment unit, for performing an anti-agglomeration treatment to prevent agglomeration among nano-carbons due to repulsion caused by dissociation among oxygen-containing functional groups added to the nano-carbon material.Type: GrantFiled: May 28, 2009Date of Patent: July 8, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kiyoshi Tatsuhara, Tomoaki Sugiyama, Atsushi Tanaka, Toshihiko Setoguchi
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Patent number: 8747501Abstract: A fuel gasification system including a gasification furnace including a fluidized bed formed by fluidizing reactant gas for gasifying fuel charged into gasification gas and flammable solid content, a combustion furnace for combustion of the flammable solid content into which the flammable solid content produced in the furnace is introduced together with bed material and that includes a fluidized bed formed by fluidizing reactant gas, a material separator such as hot cyclone that separates bed material from exhaust gas introduced from the combustion furnace, the separated bed material being fed through a downcomer to the gasification furnace, and a tar decomposing mechanism that heats the gasification gas produced in the furnace to decompose tar contained in the gasification gas.Type: GrantFiled: November 21, 2012Date of Patent: June 10, 2014Assignee: IHI CorporationInventors: Takahiro Murakami, Koubun Kyo, Toshiyuki Suda
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Patent number: 8728302Abstract: The present invention relates to an improved design for use in fluid cracking processes, preferably used in either a fluid catalytic cracking (“FCC”) process or a fluid coking process. In particular, the present invention relates to an apparatus and process for improving the separation and distributing spent catalyst and gases in a spent catalyst riser associated with a fluid cracking process, and most preferably for use in a spent catalyst riser associated with an FCC regenerator vessel. A novel catalyst distributor design and associated processes are presented herein which significantly improve combustion in the dense-phase fluidized catalyst bed of a regenerator and results in improved regenerator dense bed combustion and lower migration of oxygen into the regenerator overhead region.Type: GrantFiled: June 21, 2011Date of Patent: May 20, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Anastasios Skoulidas, Alvin U. Chen, Christopher Gordon Smalley, Robert Frank. Tammera, Norihiro Nakashima
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Publication number: 20140127116Abstract: Embodiments provide a gas distribution arrangement, a device for handling a chemical reaction comprising such a gas distribution arrangement and a method of providing a chemical reaction chamber with a gas. The distribution arrangement comprises a distribution plate for separating a chemical reaction chamber from a gas inlet area and having a first side arranged to face the chemical reaction chamber and a second side arranged to face the gas inlet area and comprising a set of through holes stretching between the first and the second side, where the first side of the plate comprises a first material surrounding the holes and having a first thermal conductivity, and the plate also comprises a second material forming a base structure also surrounding the holes and having a second thermal conductivity.Type: ApplicationFiled: May 11, 2012Publication date: May 8, 2014Applicant: Institutt For EnergiteknikkInventors: Werner Filtvedt, Arve Holt
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Patent number: 8715597Abstract: Production of polycrystalline silicon in substantially closed-loop processes and systems is disclosed. The processes and systems generally involve disproportionation of trichlorosilane to produce silane or dichlorosilane and thermal decomposition of silane or dichlorosilane to produce polycrystalline silicon.Type: GrantFiled: December 16, 2011Date of Patent: May 6, 2014Assignee: MEMC Electronic Materials, Inc.Inventors: Puneet Gupta, Yue Huang, Satish Bhusarapu
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Patent number: 8709348Abstract: Circulating dry scrubbing (CDS) systems and methods utilizes a particle classification unit operation to separate unreacted sorbent (such as lime, limestone, or sodium-based sorbent) such that a reactive fraction of the cut stream may be selectively recovered to a flue gas scrubbing system. This reduces the amount of fresh sorbent that must be supplied for pollutant removal.Type: GrantFiled: June 4, 2013Date of Patent: April 29, 2014Assignee: Babcock Power Development LLCInventors: James K. Neathery, Angelos Kokkinos, James D. Dougherty, Matthew Quitadamo
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Patent number: 8709235Abstract: Process for increasing mixing in a fluidized bed. A slide, which may be in the form of a tube or trough, transports particles from an upper zone downward to a lower zone at a different horizontal position, thereby changing the horizontal position of the particle and creating lateral mixing in the fluidized bed. Increased mixing may improve efficiency for an apparatus using a fluidized bed. For example, increased lateral mixing in a regenerator may increase temperature and oxygen mixing and reduce stagnation to improve efficiency. A slide may be relatively unobtrusive, inexpensive, and simple for a retrofit or design modification and may improve combustion efficiency at high rates by enhancing the lateral blending of spent and regenerated catalyst.Type: GrantFiled: July 27, 2009Date of Patent: April 29, 2014Assignee: UOP LLCInventors: Brian W. Hedrick, Keith A. Couch, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani
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Publication number: 20140112832Abstract: Embodiments of a nozzle assembly and a closable valve assembly for use in a fluid bed reactor system are disclosed. The nozzle assembly includes a first member that extends upwardly through a bottom wall of a fluid bed reaction chamber, and a second member. The first and second members are detachably fitted together via threads on each member. The second member can be removed and/or replaced, thereby facilitating fluid bed reactor maintenance. The closable valve assembly is connected to a nozzle, and includes a valve body and a gate pivotally connected to the valve body. The gate is movable between a first position at least partially covering the nozzle orifice in the absence of gas flow through the orifice, and a second position wherein the orifice is not covered when gas flows through the orifice.Type: ApplicationFiled: October 19, 2012Publication date: April 24, 2014Applicant: REC SILICON INCInventor: Billy Gene Lacy
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Patent number: 8696999Abstract: A riser reactor system comprising a riser reactor and a catalyst feed device for fluidized catalyst, the riser reactor having a riser interior in which catalyst is flowing during normal operation, and the feed device comprising an annular trough surrounding the riser interior, the annular trough having an upstream opening for receiving fluidized catalyst, and at least one substantially circumferential downstream opening providing fluid communication between the trough and the riser interior; and a process for the preparation of an olefinic product using a riser reactor system as claimed in any one of the preceding claims, the process comprising reacting an oxygenate feedstock in the presence of an oxygenate conversion catalyst under oxygenate-to-olefin conversion conditions in the riser reactor system, to obtain the olefinic product.Type: GrantFiled: December 21, 2009Date of Patent: April 15, 2014Assignee: Shell Oil CompanyInventors: Leslie Andrew Chewter, Hubertus Wilhelmus Albertus Dries, Rene Samson, Mao Ye
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Patent number: 8692045Abstract: A process for producing light olefins is provided. A feedstock enters a pre-reaction zone and contacts a catalyst comprising at least one silicon-aluminophosphate molecular sieve and produces a gas-phase stream; the gas-phase stream and the catalyst enter at least one riser, and the gas-phase stream and the catalyst pass from an outlet of the at least one riser and enter a gas-solid rapid separation zone; the separated gas-phase stream enters a separation section; a first portion of the separated catalyst returns to the pre-reaction zone, and a second portion is regenerated in a regenerator; wherein an inlet of the at least one riser extends into the pre-reaction zone, about 60% to about 90% of the height of the at least one riser passes through a heat exchange zone, and the outlet extends into the gas-solid rapid separation zone.Type: GrantFiled: November 16, 2011Date of Patent: April 8, 2014Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical TechnologyInventors: Guozhen Qi, Siqing Zhong, Wei Chen, Zhinan Yu
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Patent number: 8691155Abstract: Embodiments of a hydrocarbon conversion apparatus are provided, as are embodiments of a hydroprocessing conversion process. In one embodiment, the hydrocarbon conversion apparatus includes a reaction vessel having a reaction chamber and a feed distribution chamber. A riser fluidly couples the feed distribution chamber to the reaction chamber, and a catalyst recirculation standpipe fluidly couples the reaction chamber to the feed distribution chamber. The catalyst recirculation standpipe forms a catalyst recirculation circuit with the reaction chamber, the feed distribution chamber, and the riser. A catalyst is circulated through the catalyst recirculation circuit during operation of the hydrocarbon conversion apparatus.Type: GrantFiled: March 18, 2011Date of Patent: April 8, 2014Assignee: UOP LLCInventors: Paolo Palmas, Daniel Robert Johnson, Clayton C. Sadler
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Publication number: 20140086820Abstract: Using a device for producing nanocarbon, a fluidized bed is formed by supplying a low hydrocarbon and oxygen to a fluid catalyst 1, and nanocarbon and hydrogen are produced by a decomposition reaction of the low hydrocarbon accompanied by a self-combustion of the low hydrocarbon and the oxygen, wherein the device for producing nanocarbon includes: a fluidized bed reactor 2 for containing, the fluid catalyst 1 and for causing the self-combustion of the low hydrocarbon and the oxygen while being supplied with the low hydrocarbon and the oxygen; a gas supplying unit 5 connected to the fluidized bed reactor 2 and for supplying the low hydrocarbon and the oxygen to the fluidized bed reactor 2; an exhaust gas path 8 connected to the fluidized bed reactor 2 and for exhausting an exhaust gas in the fluidized bed reactor 2 to outside; and a supplying unit 2a connected to the fluidized bed reactor 2 and for supplying the fluid catalyst 1 to the fluidized bed reactor 2.Type: ApplicationFiled: May 10, 2012Publication date: March 27, 2014Applicants: National University Corporation Kitami Institute of Technology, THE JAPAN STEEL WORKS, LTD.Inventors: Satoru Nakamura, Akio Tada
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Patent number: 8663566Abstract: Disclosed are a fluidized bed water gas shift membrane reactor and a method for separating carbon dioxide using the same. More specifically, disclosed are a fluidized bed water gas shift membrane reactor provided on the back of a gasification reactor to produce a synthetic gas consisting of hydrogen and carbon monoxide by reaction of a solid hydrocarbon with water or oxygen, wherein the carbon monoxide present in an amount of 40 to 70 vol % in the synthesis gas reacts with steam in the presence of a catalyst to produce a mix gas of hydrogen and carbon dioxide, and the hydrogen is selectively isolated from the mix gas through a Pb—Cu shift membrane to increase the concentration of carbon dioxide present in the mix gas and separate the carbon dioxide, and a method for separating carbon dioxide using the same.Type: GrantFiled: July 19, 2010Date of Patent: March 4, 2014Assignee: Korea Institute of Energy ResearchInventors: See Hoon Lee, II Hyun Baek, Won Hyun Eom, Jeong Nam Kim
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Publication number: 20140050626Abstract: A catalytic filter module for gaseous fluids is disclosed comprising a block-shaped filter element, a catalytic element and a clean gas collecting and discharge arrangement. The catalytic element is substantially coextensive with the filter element, said filter element has a feed face and on its opposite side a discharge face from which filtrate exits to be received by the upstream face of the catalytic element. The gaseous fluid exits the catalytic element as clean gas at a clean gas face thereof opposite to the upstream face. The clean gas collecting and discharge arrangement comprises one or more channels extending across the whole clean gas face of the catalytic element deflecting and directing the clean gas flow transverse to the vertical of the clean gas face of the catalytic element to a clean gas discharge opening of the filter module at a side face thereof.Type: ApplicationFiled: August 6, 2013Publication date: February 20, 2014Applicant: Pall CorporationInventor: Steffen HEIDENREICH
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Patent number: 8636973Abstract: The present invention relates to means and methods for producing crystals or crystalline substances. In particular, crystals or crystalline substances which are useful as pharmaceutical ingredients can be manufactured.Type: GrantFiled: June 22, 2011Date of Patent: January 28, 2014Assignee: Biosyn Arzneimittel GmbHInventors: Thomas Stiefel, Ortwin Kottwitz
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Publication number: 20140023578Abstract: A method and system for reduction or mitigation of metal contamination of polycrystalline silicon are disclosed. Metal contamination of granulate polycrystalline silicon, from contact with a metal surface of components of the supporting transportation and auxiliary infrastructure of a fluidized bed reactor unit, is mitigated by use of a protective coating comprising a microcellular elastomeric polyurethane.Type: ApplicationFiled: July 17, 2013Publication date: January 23, 2014Applicant: REC Silicon IncInventor: Robert J. Geertsen
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Patent number: 8628725Abstract: A system for producing hydrogen gas from water decomposition using a thermochemical CuCl cycle, the improvement comprising the use of an insulated hydrogen production reactor comprising a reaction chamber and a separation chamber; the reaction chamber having a hydrogen chloride gas inlet and a solid copper inlet; one or more levels provided in the reaction chamber, the number of which is dependant on production scale and pressure drop; each level comprising a perforated plate with associated filter media, the perforations of the plate and media being of decreasing size from top to bottom of the reaction chamber, and being sized to permit downward flow of the hydrogen gas and molten CuCl products, as well as the HCL gas reactant, and to prevent entrainment of solid copper in the molten CuCl; the separation chamber being located below the reaction chamber and being of greater cross section than the reaction chamber and comprising a first hydrogen removal and entrained copper removal zone and a second molten CuCType: GrantFiled: November 25, 2008Date of Patent: January 14, 2014Assignee: University of Ontario Institute of TechnologyInventors: Kamiel Samy Gabriel, Zhaolin Wang, Greg Naterer
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Publication number: 20130336875Abstract: Disclosed are an apparatus and method for continuously producing carbon nanotubes. More specifically, disclosed are an apparatus for continuously producing carbon nanotubes including i) a reactor to synthesize carbon nanotubes, ii) a separator to separate a mixed gas from the carbon nanotubes transferred from the reactor, iii) a filter to remove all or part of one or more component gases from the separated mixed gas, and iv) a recirculation pipe to recirculate the filtered mixed gas to the reactor for carbon nanotubes. Advantageously, the apparatus and method for continuously producing carbon nanotubes enable rapid processing, exhibit superior productivity and excellent conversion rate of a carbon source, significantly reduce production costs, reduce energy consumption due to decrease in reactor size relative to capacity, and generate little or no waste gas and are thus environmentally friendly.Type: ApplicationFiled: August 19, 2013Publication date: December 19, 2013Applicant: LG CHEM, LTD.Inventors: Kwang-Hyun CHANG, Jin-Do Kim, Kwang-Woo Yoon
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Patent number: 8609058Abstract: A fluidized bed reactor and a Siemens reactor are used to produce polycrystalline silicon. The process includes feeding the vent gas from the Siemens reactor as a feed gas to the fluidized bed reactor.Type: GrantFiled: March 21, 2011Date of Patent: December 17, 2013Assignee: Hemlock Semiconductor CorporationInventors: Arvid Neil Arvidson, Michael Molnar
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Patent number: 8603406Abstract: An apparatus and process are presented for drying a catalyst in a reactor-regenerator system. The process includes a continuous operating system with catalyst circulating between a reactor and regenerator, and the catalyst is dried before returning the catalyst to the reactor. The process uses air that is split between the drying stage and the combustion stage without adding equipment outside of the regenerator, minimizing energy, capital cost, and space requirements.Type: GrantFiled: August 30, 2010Date of Patent: December 10, 2013Assignee: UOP LLCInventors: David N. Myers, Daniel N. Myers, Paolo Palmas, Laura E. Leonard, Wolfgang A. Spieker
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Patent number: 8603399Abstract: An improved processing system of an oxygenate-containing feedstock for increased production or yield of light olefins. Such processing involves oxygenate conversion to olefins and subsequent cracking of heavier olefins wherein at least a portion of the products from each of the reactors is elevated in pressure, using a common compressor, prior to being routed to a common product fractionation and recovery section. The system further comprises acid gas removal means to remove acid gases from the cracked product gas and that the olefin cracking reactor is a moving bed reactor.Type: GrantFiled: October 1, 2009Date of Patent: December 10, 2013Assignee: UOP LLCInventors: Tom N. Kalnes, Robert B. James, Jr., Daniel H. Wei, Bryan K. Glover
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Publication number: 20130324720Abstract: A system and process for melamine production by gas-phase quenching method and its process are provided. The said system includes a urea scrubber, after which a fluidized bed reactor, a hot-air cooler, a hot-air filter, a crystallizer and a melamine collector are installed in series successively, where the said melamine collector is connected to the said urea scrubber and the said fluidized bed reactor is connected to a carrier gas pre-heater which is connected to a carrier gas compressor; the said system further includes a gas-liquid separator which is connected to the said urea scrubber which is connected to a crystallizer; wherein a cool air blower is provided between the said gas-liquid separator and the crystallizer. The production system of the invention has the advantages of high productivity, stable operation, low energy consumption, low investment and high economic value of tail gas.Type: ApplicationFiled: April 20, 2012Publication date: December 5, 2013Applicants: SICHUAN GOLDEN-ELEPHANT SINCERITY CHEMICAL CO.,LTD, BEIJING EDGEIN TECHNOLOGY CO., LTD.Inventors: Yin Tang, Zhongwu Yuan, Yuande Gong, Mingda Yin, Xiuzhen Yang, Duanyang Chen, Jianglin Yi, Lin Lei, Chaohui Liu, Xuchu Li, Xikun Xiong, Hui Chen, Deli Kong, Wenmao Jiang, Gang Li, Lihong Guo, Zhongyun Li, Guangsong Lan, Guohua Yuan, Xiangdong Kuang
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Publication number: 20130323614Abstract: Gas Stream Production The present invention provides a method for the production of carbon dioxide and/or hydrogen gas streams, the method comprising: (i) thermally treating a feedstock material to produce a syngas comprising carbon monoxide and hydrogen and plasma-treating the syngas in a plasma treatment unit; (ii) reacting the plasma-treated syngas with water in a further treatment unit, whereby at least some of the carbon monoxide is converted into carbon dioxide; and (iii) recovering hydrogen and/or, separately, carbon dioxide from the syngas.Type: ApplicationFiled: January 6, 2012Publication date: December 5, 2013Applicant: ADVANCED PLASMA POWER LIMITEDInventors: Chris Chapman, Rolf Stein, Martin Brooks, Edward S. Manukian, Robert M. Clark
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Publication number: 20130302238Abstract: The present invention relates to a continuous manufacturing apparatus for a carbon nanotube having gas separation units and a continuous manufacturing method for a carbon nanotube using the same, and more specifically, to a continuous manufacturing apparatus for a carbon nanotube having gas separation units and a continuous manufacturing method for a carbon nanotube using the same, in which the apparatus includes i) a reactor for synthesizing the carbon nanotube; ii) a separator for separating a mixed gas and the carbon nanotube transferred from the reactor; iii) a gas separation unit including more than one polymer membrane for removing in part or in whole of more than one component gas from the mixed gas separated; and iv) a recirculation pipe for recirculating the mixed gas without in part or in whole of the component gas to the reactor of carbon nanotube.Type: ApplicationFiled: August 25, 2011Publication date: November 14, 2013Applicant: LG CHEM, LTD.Inventors: Kwang-Hyun Chang, Jin-Do Kim, Kwang-Woo Yoon
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Patent number: 8580203Abstract: A fluidized bed reactor is disclosed. The fluidized bed reactor includes a head; a first body part connected with the head, located under the head, the first body part having a first reaction pipe provided therein; a second body part connected with the first body part, located under the first body part, the second body part having a second reaction pipe provided therein; and a bottom part connected with the second body part, located under the second body part, the bottom part having a flowing-gas supply nozzle, a reaction gas supply nozzle, a heater and an electrode assembled thereto.Type: GrantFiled: September 28, 2011Date of Patent: November 12, 2013Assignee: SiliconValue LLCInventors: Yunsub Jung, Keunho Kim, Yeokyun Yoon, Ted Kim, Yong Ki Park, Kyung Koo Yoon, Myung Hoi Koo
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Patent number: 8580204Abstract: A fluidized bed reactor is disclosed. The fluidized bed reactor includes a reaction pipe comprising silicon particles provided therein; a flowing-gas supply unit configured to supply flowing gas comprising silicon elements to the silicon particles provided in the reaction pipe; and a heater unit configured to supply heat to an internal space of the reaction pipe, with a heater channel in which inert gas flows serially.Type: GrantFiled: September 28, 2011Date of Patent: November 12, 2013Assignee: SiliconValue LLCInventors: Yunsub Jung, Keunho Kim, Yeokyun Yoon, Ted Kim
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Publication number: 20130296448Abstract: A method of preparing a spray dried catalyst by combining spray dried catalyst particles with wax so the spray dried catalyst particles are coated with wax, yielding wax coated catalyst particles, and shaping the wax coated catalyst to provide shaped wax coated catalyst. A method of activating Fischer-Tropsch catalyst particles containing oxides by contacting the catalyst particles with a reducing gas in an activation vessel to produce an activated catalyst, wherein contacting is performed in the absence of a liquid medium under activation conditions. A system for activating a Fischer-Tropsch catalyst containing an activation reactor configured to introduce an activation gas to a fixed or fluidized bed of the Fischer-Tropsch catalyst in the absence of a liquid medium and at least one separation device configured to separate a gas stream comprising entrained catalyst fines having an average particle size below a desired cutoff size from the activation reactor.Type: ApplicationFiled: July 2, 2013Publication date: November 7, 2013Inventors: Harold A. Wright, Belma Demirel, Sergio Mohedas, Bahman Rejai, Ray J. Huang, Deena Ferdous, Jesse W. Taylor, Dawid J. Duvenhage, Sara L. Rolfe
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Publication number: 20130270483Abstract: The invention relates to systems and methods for producing synthesis gas. In particular, the systems of the present invention include two catalytic reactors in series, a wet reformer/gasifier followed by a dry reformer. The systems produce synthesis gas with very little to no methane.Type: ApplicationFiled: July 17, 2012Publication date: October 17, 2013Applicant: Primus Green Energy Inc.Inventors: Moshe BEN-REUVEN, Howard L. Fang, Meifang Qin, Robert M. Koros, Arie Toren
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Publication number: 20130272946Abstract: There is provided a hydrogen chrolide gas ejecting nozzle 1 used in a reaction apparatus for producing trichlorosilane in which metal silicon powder is reacted with hydrogen chloride gas to generate trichlorosilane. The member is provided with a shaft portion extending in the longitudinal direction and a head portion that is provided on an end of the shaft portion and extends in a direction intersecting the longitudinal direction of the shaft portion. A supply hole extending in the longitudinal direction is formed in the shaft portion, a plurality of ejection holes are formed in the head portion, and each of the ejection holes is communicatively connected to the supply hole and opened on the outer surface of the head portion toward a direction intersecting the direction to which the supply hole extends.Type: ApplicationFiled: June 12, 2013Publication date: October 17, 2013Inventor: Chikara Inaba
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Patent number: 8551324Abstract: The present invention describes a process for the production of gasoline in a fluid catalytic cracking unit having at least one principal reactor operating using feeds with a low Conradson Carbon and a high hydrogen content, said process comprising recycling a coking cut either to a side chamber branching off the stripper or within the stripper itself by means of a tubular vessel within said stripper.Type: GrantFiled: October 13, 2011Date of Patent: October 8, 2013Assignee: IFP Energies nouvellesInventors: Frederic Feugnet, Romain Roux
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Patent number: 8545579Abstract: A gasification furnace 2 is divided into a plurality of gasification furnace units 2a and 2b each of which has an inlet 15a, 15b on a lower portion at a longitudinally upstream end in a direction of travel of raw and bed materials and has an outlet 16a, 16b on an upper portion at a longitudinally downstream end in the direction of travel. The outlet 16a is connected to the inlet 15b. The inlet 15a is fed with a raw material and a hot bed material from a materials separator 8. The inlet 15b is also fed with the hot bed material from the material separator 8. The outlet 16b is connected to a combustion furnace 5.Type: GrantFiled: March 18, 2009Date of Patent: October 1, 2013Assignee: IHI CorporationInventors: Hisanori Nukumi, Toshiyuki Suda, Tomoya Muramoto
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Patent number: 8540962Abstract: The disclosed method for producing hydrogen by means of thermochemical water-splitting can efficiently use solar energy obtained by means of a beam-down typed light collecting system. Further disclosed is a device for producing hydrogen. While circulating within a reactor (1) a fluidized bed (2) made of metal oxide particles, two reactions are simultaneously caused to proceed: a thermal reduction reaction, which is an oxygen evolution reaction wherein a portion of the fluidized bed (2) is heated by solar light (S) in a nitrogen atmosphere, which is a low oxygen partial pressure gas, releasing oxygen from the metal oxide; and a thermochemical water-splitting reaction, which is a hydrogen evolution reaction wherein water vapor is brought into contact with the metal oxide after oxygen has been released, generating hydrogen.Type: GrantFiled: December 1, 2010Date of Patent: September 24, 2013Assignee: Niigata UniversityInventors: Tatsuya Kodama, Nobuyuki Gokon
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Patent number: 8534904Abstract: A gas-solids contactor modification is described which provides for starting or restarting the gas flow to the gas-solids contactor when it is filled with solid particles while preventing the solids from entering and blocking one or more gas inlets which have diameters greater than the solid particle diameters. The apparatus modification comprises a gas plenum and one or more chambers within the gas plenum located between the contactor inlet and the gas inlet. The wall of the chamber has multiple passageways therethrough that are smaller in diameter than the majority of the bed particles. Gas feed to the plenum must pass through the passageways in the chamber walls before entering the contactor. In one embodiment the total open area of the passageways is at least as large as the cross-sectional area of the gas inlet and the inlet to the contactor.Type: GrantFiled: March 10, 2010Date of Patent: September 17, 2013Assignee: Lord Ltd., LPInventor: Stephen Michael Lord
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Patent number: 8535610Abstract: Disclosed is a catalyst distributor and process for mixing spent catalyst and recycled regenerated catalyst in a regenerator vessel. Mixing is conducted in a confined space to which catalyst is delivered from catalyst conduits protruding through the wall of the regenerator.Type: GrantFiled: September 30, 2010Date of Patent: September 17, 2013Assignee: UOP LLCInventors: Paolo Palmas, Daniel R. Johnson
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Patent number: 8535632Abstract: The present invention relates to a catalyst-containing nanofiber composition, comprising a ceramic nanofiber having a plurality of metal catalysts wherein the metal catalysts exist as dispersed particles partially embedded in the nanofiber and cover from about 1% to about 90% of the surface area of the ceramic nanofiber.Type: GrantFiled: March 19, 2009Date of Patent: September 17, 2013Assignee: The University of AkronInventors: George G. Chase, George R Newkome, Sphurti Bhargava, Soo-Jin Park, Sneha Swaminathan
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Publication number: 20130236367Abstract: Production of polycrystalline silicon in a substantially closed-loop process is disclosed. The processes generally include decomposition of trichlorosilane produced from metallurgical grade silicon.Type: ApplicationFiled: April 26, 2013Publication date: September 12, 2013Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Satish Bhusarapu, Yue Huang, Puneet Gupta
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Patent number: 8524164Abstract: A method for removing contaminants from an process stream that includes the use of reticulated material to filter the process stream. The reticulated material also facilitate process stream flow distribution in process units. The reticulated material can be packed with a void space between a substantial number of the reticulated material that can be varied to enhance filtration and flow distribution. The method of filtering also provides a method of removing contaminants leaving process equipment. The methods can be used on a variety of process streams and process equipment. The reticulated material can include ceramics, metallic materials, and chemical vapor deposition elements. The reticulated material can be of various shapes and sizes, and can also be catalytically active.Type: GrantFiled: August 15, 2007Date of Patent: September 3, 2013Inventor: John N. Glover
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Patent number: 8518352Abstract: The invention concern an apparatus and a method for manufacturing polycrystalline silicon having a reduced amount of boron compounds. The invention feeds Ar gas in a trichlorosilane line, which connects a trichlorosilane (TCS) tank and a series of distillation units. The distillation units have a pressure transducer and a pressure independent control valve (PIC-V) positioned on a vent gas line for discharging vent gas from the distillation units. Ar gas is fed to the TCS line with higher pressure than the pressure set for opening the PIC-V. The TCS is distilled by the distillation units with continuously discharging vent gas from the distillation units.Type: GrantFiled: June 25, 2012Date of Patent: August 27, 2013Assignees: Mitsubishi Polycrystalline Silicon America Corporation (MIPSA), Mitsubishi Materials CorporationInventors: Takeshi Kamei, Mamoru Nakano
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Patent number: 8518134Abstract: The invention relates to a gasification reactor (1) and associated method for the entrained-flow gasification of solid fuels under pressure. The reactor essentially consists of a pressure vessel (4) that can be cooled and an inner jacket (7) that is equipped with a heat shield. At least one crude gas outflow (8) is located at the upper end of the cylindrical pressure vessel and at least one bottoms withdrawal outlet (30) is located at the lower end, the pressure vessel having at least enough space for a moving bed (13), an entrained flow (11) that circulates internally above the surface of the moving bed and a buffer zone (3) situated above said entrained bed.Type: GrantFiled: February 7, 2008Date of Patent: August 27, 2013Assignee: Technische Universität Bergakademie FreibergInventors: Bernd Meyer, Peter Seifert, Steffen Krzack, Sirko Ogriseck, Hardy Rauchfuss, Mathias Rieger, Michael Trompelt, Stefan Guhl
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Patent number: 8518353Abstract: Circulating dry scrubbing (CDS) systems and methods utilizes a particle classification unit operation to separate unreacted sorbent (such as lime, limestone, or sodium-based sorbent) such that a reactive fraction of the cut stream may be selectively recovered to a flue gas scrubbing system. This reduces the amount of fresh sorbent that must be supplied for pollutant removal.Type: GrantFiled: October 9, 2012Date of Patent: August 27, 2013Assignee: Babcock Power Development LLCInventors: James K. Neathery, Angelos Kokkinos, James D. Dougherty, Matthew Quitadamo
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Patent number: 8506890Abstract: To provide a treatment method having excellent purification effect, in which impurities having high ionicity in a silica powder can be removed in a short time, an apparatus thereof, and a purified silica powder. A purification method of a silica powder comprises making a silica powder into a fluid state; contacting a purified gas to the silica powder in the fluid state at high temperature; and thereby removing impurity components of the silica powder. In the method, the silica powder in the fluid state is positioned in a magnetic field region. Further, the silica powder is contacted with the purified gas, while applying voltage to the silica powder by an electric field generated by moving of the silica powder. Preferably, the silica powder in a fluid state is positioned in the magnetic region of 10 gausses or more, and contacted with the purification gas at a temperature of I000° C. or more.Type: GrantFiled: March 14, 2011Date of Patent: August 13, 2013Assignee: Japan Super Quartz CorporationInventors: Minoru Kanda, Yoshiyuki Tsuji
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Patent number: 8506917Abstract: In a circulating fluidized-bed gasification system, an ammonia-off gas 30 from an ammonia remover 25 is fed to a catalytic denitrator 15 with a flow rate regulated such that a molar ratio of the ammonia in the ammonia off-gas 30 from the ammonia recover 25 to nitrogen oxides in an exhaust gas 6 from a combustion furnace 1 is kept within a setting range, and a reminder of the ammonia off-gas 30 is fed to the combustion furnace 1.Type: GrantFiled: October 14, 2010Date of Patent: August 13, 2013Assignee: IHI CorporationInventors: Hiroaki Ohara, Koki Hamada
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Publication number: 20130195727Abstract: A fluidized bed biogasifier is provided for gasifying biosolids. The biogasifier includes a reactor vessel and a feeder for feeding biosolids into the reactor vessel at a desired feed rate during steady-state operation of the biogasifier. A fluidized bed in the base of the reactor vessel has a cross-sectional area that is proportional to at least the fuel feed rate such that the superficial velocity of gas is in the range of 0.1 m/s (0.33 ft/s) to 3 m/s (9.84 ft/s). In a method for gasifying biosolids, biosolids are fed into a fluidized bed reactor. Oxidant gases are applied to the fluidized bed reactor to produce a superficial velocity of producer gas in the range of 0.1 m/s (0.33 ft/s) to 3 m/s (9.84 ft/s). The biosolids are heated inside the fluidized bed reactor to a temperature range between 900° F. (482.2° C.) and 1700° F. (926.7° C.) in an oxygen-starved environment having a sub-stoichiometric oxygen level, whereby the biosolids are gasified.Type: ApplicationFiled: January 30, 2012Publication date: August 1, 2013Applicant: MaxWest Environmental Systems Inc.Inventors: Douglas R. Bull, Ross M. Patten, Paul Cairney, Gerald M. Cox, William P. Jepson
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Patent number: 8496898Abstract: A pneumatic conveying system for conveying hydrated lime is provided with ambient air for the pneumatic conveying system from a scrubber that removes carbon dioxide from the ambient air used in the conveying system. The scrubber includes a bed of hydrated lime through which ambient air is passed, to react carbon dioxide in the air with the hydrated lime in a reaction that forms limestone and water. The air that has passed through the fluidized bed, which is essentially carbon dioxide free, is also passed through a filter to remove particles suspended in the carbon dioxide free air. The carbon dioxide free air from the filter is provided to the pneumatic conveying system. The use of carbon dioxide free air ensures that the hydrated lime being transported in the conveying system will not react in the various conduits and ducts of the pneumatic conveying system to cause problems.Type: GrantFiled: February 9, 2011Date of Patent: July 30, 2013Assignee: Nol-Tec Systems, Inc.Inventor: Michael John Mooney
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Patent number: 8486339Abstract: There is provided a hydrogen chrolide gas ejecting nozzle 1 used in a reaction apparatus for producing trichlorosilane in which metal silicon powder is reacted with hydrogen chloride gas to generate trichlorosilane. The member is provided with a shaft portion extending in the longitudinal direction and a head portion that is provided on an end of the shaft portion and extends in a direction intersecting the longitudinal direction of the shaft portion. A supply hole extending in the longitudinal direction is formed in the shaft portion, a plurality of ejection holes are formed in the head portion, and each of the ejection holes is communicatively connected to the supply hole and opened on the outer surface of the head portion toward a direction intersecting the direction to which the supply hole extends.Type: GrantFiled: October 22, 2008Date of Patent: July 16, 2013Assignee: Mitsubishi Materials CorporationInventor: Chikara Inaba
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Patent number: 8480767Abstract: A fluidized bed gasification system is provided in which bed material and raw material are passed throughout a fluidized bed gasification furnace so that raw material is gasified with higher gasification efficiency to improve gasification productivity. A heat-resistant partition 32 for regulation of bed material flow is arranged between positions I and II of a downcomer 12 of a separator 8 and of a supply flow passage 25 in plane of a fluidized bed gasification furnace 2. As a result, the bed material introduced via the downcomer 12 is directed to a supply flow passage 25 through a circuitous flow passage 33 throughout the fluidized bed gasification furnace 2 defined by the heat-resistant partition 32.Type: GrantFiled: March 14, 2007Date of Patent: July 9, 2013Assignee: IHI CorporationInventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Hironobu Fujiyoshi, Makoto Takafuji, Kenichiro Kondo
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Patent number: 8480965Abstract: Injection nozzles for use in a gas distribution device are disclosed. In one aspect, the injection nozzle may include: a tube having a fluid inlet and a fluid outlet; wherein the inlet comprises a plurality of flow restriction orifices. In another aspect, embodiments disclosed herein relate to an injection nozzle for use in a gas distribution device, the injection nozzle including: a tube having a fluid inlet and a fluid outlet; wherein the fluid inlet comprises an annular orifice surrounding a flow restriction device. Injection nozzles according to embodiments disclosed herein may be disposed in a gas distribution manifold used in a vessel, for example, for conducting polymerization reactions, spent catalyst regeneration, and coal gasification, among others.Type: GrantFiled: December 8, 2011Date of Patent: July 9, 2013Assignee: Lummus Technology Inc.Inventors: Leonce Francis Castagnos, Jr., Ting Yee Chan, Norman Paul Kolb, Ronald Eugene Pieper
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Patent number: 8475726Abstract: A reactor (6) for pyrolysing waste, in particular rubber tires, said reactor comprising a pyrolysis space (68), an inlet port (63) and an outlet port (64) enabling a flow across the pyrolysis space (68) of a heating medium for transferring heat required for the pyrolysis, and a lower discharge port (62) for discharging solid residues of the pyrolysis. The invention is, characterized in that—it comprises a baffle means (65) made of a plate material and enabling a gravitational slipping of the solid residues towards the discharge port (62), which baffle means (65) has openings (66) allowing the flow of the heating medium and is arranged to divide the inner space of the reactor (6) to form an upper pyrolysis space (68) and a lower space and—one of the inlet and outlet ports (63, 64) is in connection with the pyrolysis space (68) and the other one with the lower space. The invention is also an apparatus comprising the above reactor (6).Type: GrantFiled: August 16, 2007Date of Patent: July 2, 2013Assignee: Pirolisis Project Kft.Inventors: András Bence Balint, Péter Varga, László Nagy, Sándor Demeter, Iván Pál Fodor