Sequentially Arranged Patents (Class 422/142)
  • Patent number: 8349290
    Abstract: A multi-fluidized bed water-gas shift reactor wherein a specific syngas containing a high concentration of carbon monoxide produced by gasification of a heavy carbon source such as coal, vacuum residue, glycerin, etc., is in contact with water under a catalyst so as to produce hydrogen and, in addition, a method for production of hydrogen using the foregoing reactor are disclosed. In other words, the disclosure describes a multi-fluidized bed water-gas shift reactor containing low and high temperature catalysts as well as steam and a method for production of hydrogen using the same, wherein 30 to 70% carbon monoxide in the syngas as a gas mixture containing hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, hydrogen monoxide, and the like, which are generated through partial oxidation and vapor gasification at 900 to 1,600° C., may be favorably converted into hydrogen without mixing both of the catalysts.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 8, 2013
    Assignee: Korea Institute of Energy Research
    Inventors: See Hoon Lee, Jae Ho Kim, Jung Min Shon
  • Patent number: 8349264
    Abstract: Methods and systems for preparing catalyst, such as chromium catalysts, are provided. The valence of at least a portion of the catalyst sent to an activator is changed from Cr(III) to Cr(VI). The catalyst is prepared or activated continuously using a fluidization bed catalyst activator.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: January 8, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel, Ted H. Cymbaluk, Charles K. Newsome, Charles R. Nease, H. Kenneth Staffin, Thomas R. Parr
  • Publication number: 20130006028
    Abstract: The present invention discloses catalytic cracking apparatus and process, which are useful for catalytic cracking of heavy oils with a high heavy oil conversion, a high propylene yield and low dry gas and coke yields.
    Type: Application
    Filed: October 29, 2010
    Publication date: January 3, 2013
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Chaogang Xie, Yongcan Gao, Weimin Lu, Jun Long, Yan Cui, Jiushun Zhang, Yinan Yang, Jianguo Ma, Zheng Li, Nan Jiang
  • Patent number: 8329109
    Abstract: A dry conversion reactor for converting uranium hexafluoride to uranium dioxide, the dry conversion reactor including a gas-phase reaction segment and a fluidized bed segment, wherein at least one of the gas-phase reaction segment and the fluidized bed segment is a replaceable segment. A method for operating a dry conversion reactor utilizing a uranium hexafluoride to uranium dioxide conversion process, the method including replacing at least one conversion reactor segment.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: December 11, 2012
    Assignee: Areva NP
    Inventors: Richard Thaddeus Kimura, Andrew Landon, Clifford Yeager
  • Patent number: 8318101
    Abstract: The invention relates to an oil-derived hydrocarbon converter comprising a catalytic cracking vessel (1) in the presence of catalyst particles in fluidized phase and a regenerator, for regenerating said catalyst particles by burning off the coke deposited on them, said catalyst circulating between said cracking vessel and said regenerator, said regenerator being a reactor (2) integrated into a combustion installation for steam generation comprising carbon dioxide capture.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 27, 2012
    Assignee: ALSTOM Technology Ltd
    Inventors: Jean-Xavier Morin, Corinne Beal, Silvestre Suraniti
  • Patent number: 8313700
    Abstract: The water gas shift reactor includes a gas reaction tank including a reaction chamber formed in the shape of a hollow body provided with a porous plate installed therein to divide the inside of the reaction chamber into an upper reaction space and a lower collection space and a catalyst stacked on the upper surface of the porous plate to convert carbon monoxide into hydrogen, and an insulating layer provided at the outer surface of the reaction chamber, a syngas storage tank to store the syngas, a syngas supply pipe to supply the syngas to the gas reaction tank, after the syngas is heated by a preheater, a steam supply pipe to supply steam generated from a steam generator to the gas reaction tank such that the steam reacts with the syngas, after the steam is heated by a preheater, and a reaction gas discharge pipe.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 20, 2012
    Assignee: Korea Institute of Energy Research
    Inventors: See Hoon Lee, Jae Ho Kim, Jae Goo Lee
  • Patent number: 8313705
    Abstract: In one exemplary embodiment, a system for reacting a first feed can include a petroleum fraction having at least about 90%, by volume, with a boiling point of at least about 300° C. The system can include a bubble column reactor. The bubble column reactor, in turn, can include a first inlet for the first feed and a second inlet for a second feed including a gas rich in hydrogen. In addition, the petroleum fraction may be in counter-current flow with respect to the gas rich in hydrogen inside the bubble column reactor.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 20, 2012
    Assignee: UOP LLC
    Inventor: Paul R. Zimmerman
  • Patent number: 8309041
    Abstract: Systems for hydrocracking a heavy oil feedstock employ a colloidally or molecularly dispersed catalyst (e.g., molybdenum sulfide) which provide for concentration of the colloidally dispersed catalyst within the lower quality materials requiring additional hydrocracking. In addition to increased catalyst concentration, the inventive systems and methods provide increased reactor throughput, increased reaction rate, and of course higher conversion of asphaltenes and lower quality materials. Increased conversion levels of asphaltenes and lower quality materials also reduces equipment fouling, enables the reactor to process a wider range of lower quality feedstocks, and can lead to more efficient use of a supported catalyst if used in combination with the colloidal or molecular catalyst.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: November 13, 2012
    Assignee: Headwaters Heavy Oil, LLC
    Inventors: Roger K. Lott, Yu-Hwa Chang
  • Patent number: 8299314
    Abstract: The present invention is directed to a method and system for integrating a catalyst regeneration system with a plurality of hydrocarbon conversion apparatuses, preferably, a plurality of multiple riser reactor units. One embodiment of the present invention is a reactor system including a plurality of reactor units, at least one reactor unit preferably comprising a plurality of riser reactors. The system also includes a regenerator for converting an at least partially deactivated catalyst to a regenerated catalyst. A first conduit system transfers the at least partially deactivated catalyst from the reactor units to the regenerator, and a second conduit system transfers regenerating catalysts from the regenerator to the plurality of reactor units. Optionally, catalysts from a plurality of hydrocarbon conversion apparatuses may be directed to a single stripping unit and/or a single regeneration unit.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: October 30, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Michael Peter Nicoletti, James R. Lattner, Dennis George Alexion, Peter K. Paik
  • Patent number: 8292977
    Abstract: The invention has its object to arbitrarily adjust an amount of particles to be circulated without changing a flow rate of a gasification agent to thereby enhance gasification efficiency in a fluidized bed gasification furnace. The fluidized bed gasification furnace 107 comprises first and second chambers 113 and 114 in communication with each other in a fluidized bed 105. The hot particles 102 separated in the separator 104 and raw material M are introduced into the first chamber 113. The particles 102 introduced from the first chamber 113 through interior in the fluidized bed 105 to the second chamber 114 are supplied in an overflow manner to the fluidized bed combustion furnace 100.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: October 23, 2012
    Assignee: IHI Corporation
    Inventors: Toshiyuki Suda, Yoshiaki Matsuzawa, Toshiro Fujimori
  • Publication number: 20120258029
    Abstract: The present disclosure is directed to a process that allows dry sorbents to remove a target constituent, such as carbon dioxide (CO2), from a gas stream. A staged fluidized bed separator enables gas and sorbent to move in opposite directions. The sorbent is loaded with target constituent in the separator. It is then transferred to a regenerator where the target constituent is stripped. The temperature of the separator and regenerator are controlled. After it is removed from the regenerator, the sorbent is then transferred back to the separator.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 11, 2012
    Applicant: ADA-ES, INC.
    Inventors: Holly Krutka, Cody Wilson, Travis Starns
  • Patent number: 8282885
    Abstract: An FCC apparatus may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: October 9, 2012
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Patent number: 8282887
    Abstract: A reactor design and process for the dehydrogenation of hydrocarbons is presented. The reactor design includes a multibed catalytic reactor, where each of the reactor beds are fluidized. The catalyst in the reactor cascades through the reactor beds, with fresh catalyst input into the first reactor bed, and the spent catalyst withdrawn from the last reactor bed. The hydrocarbon feedstream is input to the reactor beds in a parallel formation, thereby decreasing the thermal residence time of the hydrocarbons when compared with a single bed fluidized reactor, or a series reactor scheme.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: October 9, 2012
    Assignee: UOP LLC
    Inventors: David N. Myers, Lev Davydov
  • Patent number: 8277736
    Abstract: The present invention relates to a fluidized bed reactor system made up of at least two fluidized bed reactors, comprising at least one main reactor (1) in the form of a circulating fluidized bed and a secondary reactor (2) in the form of a circulating fluidized bed, and also a particle line comprising a particle separator for transporting fluidized bed particles from the main reactor into the secondary reactor, characterized in that, in the lower region of the respective reactor, a line (10) connects the secondary reactor (2) to the main reactor (1) for transporting fluidized bed particles.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: October 2, 2012
    Assignee: Technische Universitat Wien
    Inventors: Tobias Proll, Philipp Kolbitsch, Johannes Bolhar-Nordenkampf, Hermann Hofbauer
  • Patent number: 8278402
    Abstract: The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are directly connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for pneumatically displacing polymer particles from the moving bed unit into the fluidized bed unit.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: October 2, 2012
    Assignee: Borealis Technology Oy
    Inventors: Michiel Bergstra, Erik Eriksson, Gunter Weickert
  • Publication number: 20120148484
    Abstract: The invention relates to an improved plant and method for chemical looping combustion of at least one hydrocarbon feed with independent control of the circulation of the solid active mass particles between the fluidized bed reaction zones, by means of one or more non-mechanical valves of L-valve type.
    Type: Application
    Filed: June 30, 2010
    Publication date: June 14, 2012
    Inventors: Thierry Gauthier, Ali Hoteit, Ann Forret
  • Publication number: 20120142973
    Abstract: A dual-bed catalytic distillation tower has a catalytic column from the top down having an upper catalytic bed filled with low temperature dehydration catalysts and a lower catalytic bed filled with high temperature dehydration catalysts. When using the dual-bed catalytic distillation tower, the feeding may be fed to the tower from the top of the upper catalytic bed, between the upper and lower catalytic beds or the bottom of the lower catalytic bed for dehydration to obtain DME. The dual-bed catalytic distillation tower has the advantage of flexible set up depending on various feedings such as anhydrous or crude methanol and on different grade of DME to be obtained.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 7, 2012
    Applicant: CPC Corporation
    Inventors: Wei-Bin Su, Hsun-Yi Huang, Jyh-Haur Hwang, Tzong-Bin Lin, Cheng-Tsung Hong, Hung-Chung Shen, Karl T. Chuang
  • Patent number: 8173015
    Abstract: A photocatalytic reactor for carrying out a photocatalytic reaction on a liquid which is to be treated, the reactor comprising a reaction chamber which comprises: (i) a foraminated member which supports a plurality of mobile photocatalyst particles, the size and density of which is such that they tend to rest on the foraminated member in use; and (ii) an aeration device which causes gas bubbles to rise from the foraminated member and agitate the mobile photocatalyst particles. The reactor may be a flow-through reactor. The photocatalytic reactor can be applied to the remediation of waste water using titanium oxide.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: May 8, 2012
    Assignee: UVPS Environmental Solutions Limited
    Inventors: Neil Robert Foster, Kourosh Bassiti
  • Publication number: 20120091395
    Abstract: A method and device for producing low-tar synthesis gas from biomass. The method according to the invention lowers the tar content in the synthesis gas by splitting the biomass into pyrolysis coke and pyrolysis gas in a fluidized bed reactor, both of which are fed to at least one more fluidized bed reactor, wherein tars in the largely tar-free pyrolysis coke are catalytically split at a higher temperature without the ash melting point being exceeded. The method according to the invention enables the production of largely tar-free synthesis gas.
    Type: Application
    Filed: July 7, 2009
    Publication date: April 19, 2012
    Inventor: Karl-Heinz Tetzlaff
  • Patent number: 8137631
    Abstract: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: March 20, 2012
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert L. Mehlberg
  • Patent number: 8128879
    Abstract: The apparatus converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 6, 2012
    Assignee: UOP LLC
    Inventors: Joao Jorge da Silva Ferreira Alves, James E. Rekoske, Christopher P. Nicholas
  • Patent number: 8128895
    Abstract: Processing schemes and arrangements are provided for obtaining propylene and propane via the catalytic cracking of a heavy hydrocarbon feedstock and converting the propylene into cumene without separating the propane from the propane/propylene feed stream. The disclosed processing schemes and arrangements advantageously eliminate any separation of propylene from propane produced by a FCC process prior to using the combined propane/propane stream as a feed for a cumene alkylation process. A bottoms stream from the cumene column of the cumene alkylation process can be used and an absorption solvent in the FCC process thereby eliminating the need for a transalkylation reactor and a DIPB/TIPB column.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 6, 2012
    Assignee: UOP LLC
    Inventor: Michael A. Schultz
  • Patent number: 8114353
    Abstract: Methods and systems for preparing catalyst, such as chromium catalysts, are provided. The valence of at least a portion of the catalyst sent to an activator is changed from Cr(III) to Cr(VI). The catalyst is prepared or activated continuously using a fluidization bed catalyst activator.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 14, 2012
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel, Ted H. Cymbaluk, Charles K. Newsome, Charles R. Nease, H. Kenneth Staffin, Thomas R. Parr
  • Patent number: 8114352
    Abstract: The present invention relates to a high-pressure fluidized bed reactor for preparing granular polycrystalline silicon, comprising (a) a reactor tube, (b) a reactor shell encompassing the reactor tube, (c) an inner zone formed within the reactor tube, where a silicon particle bed is formed and silicon deposition occurs, and an outer zone formed in between the reactor shell and the reactor tube, which is maintained under the inert gas atmosphere, and (d) a controlling means to keep the difference between pressures in the inner zone and the outer zone being maintained within the range of 0 to 1 bar, thereby enabling to maintain physical stability of the reactor tube and efficiently prepare granular polycrystalline silicon even at relatively high reaction pressure.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: February 14, 2012
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Hee Young Kim, Kyung Koo Yoon, Yong Ki Park, Won Choon Choi
  • Patent number: 8105541
    Abstract: A reactor system includes a fluidized bed reactor with a fluidized zone having sorbent particles and catalyst particles. The sorbent particles are sized to become entrained in a product stream from the fluidized zone and the catalyst particles are sized to gravimetrically stay within the fluidized zone.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: January 31, 2012
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Albert E. Stewart, Jeffrey A. Mays
  • Patent number: 8088335
    Abstract: A conversion apparatus for catalytic cracking a hydrocarbon feed to light hydrocarbon comprises at least one riser reactor, a dense bed reactor, a disengager, and a stripper. A dense bed reactor which is separated from disengage, is employed to enforce further cracking hydrocarbon to light olefins, with low methane yield. Moreover, the spent catalysts discharged from the outlet of the dense bed reactor can be introduced into the stripper via a specific catalyst transporting channel, to maintain catalyst concentration in the dense bed reactor that can be advantageous to deeper cracking of the intermediate products to produce more light olefins, particularly propylene.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: January 3, 2012
    Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Jun Long, Kejia Xu, Shuandi Hou, Zhijian Da, Chaogang Xie, Jiushun Zhang, Zhanzhu Zhang
  • Patent number: 8084555
    Abstract: A spouted bed device according to the present invention includes a vertically extending cylinder; a decreasing diameter member which is formed on the cylinder, has an inside diameter that decreases progressively downward, and has a gas inlet orifice at a bottom end thereof; and a tubular portion which extends downward from an edge of the gas inlet orifice. A spouted bed is formed in a treatment zone enclosed by a top surface of the decreasing diameter member and an inner wall of the cylinder above the decreasing diameter member.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: December 27, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroyuki Ogawa, Hideki Sato, Hiroshi Ueda
  • Publication number: 20110305602
    Abstract: The apparatus converts ethylene in a dilute ethylene stream and dilute benzene in an aromatic containing stream via alkylation to heavier hydrocarbons. The catalyst may be a zeolite such as UZM-8. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, and hydrogen and selectively converts benzene. At least 40 wt-% of the ethylene in the dilute ethylene stream and at least 20 wt-% of the benzene in the dilute benzene stream can be converted to heavier hydrocarbons.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 15, 2011
    Applicant: UOP LLC
    Inventors: Christopher P. Nicholas, Alakananda Bhattacharyya
  • Publication number: 20110300026
    Abstract: A process and apparatus is presented for the improved selectivity of oxygenate conversion to olefins. The process includes passing a process stream through a two stage reactor, wherein the process stream is separated from the catalyst in the first stage before passing the process stream to the second stage. The catalyst is continuously passed through the two stages, and cycles through a regeneration unit to control the carbon content on the catalyst.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 8, 2011
    Applicant: UOP LLC
    Inventors: Carl J. Stevens, Paul A. Sechrist, Richard A. Johnson, II
  • Patent number: 8071034
    Abstract: The present invention relates to a device with a rotating fluidized bed in one or a succession of cylindrical chambers, in which injectors (12), distributed around the fixed circular wall (2) of said cylindrical chamber(s), inject along this wall, in successive layers, one or more fluids (13), which entrain the solid particles (17), passing through this/these chamber(s), in a movement of rapid rotation whereof the centrifugal force concentrates these particles along this wall, thereby forming a fluidized bed rotating around a central duct or a plurality of central ducts (3), through which the fluids are removed. The present invention further relates to a method of catalytic polymerization, drying or other treatments of solid particles in suspension in a rotating fluidized bed or of catalytic conversion of fluids passing through said rotating fluidized bed using a device according to the present invention.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: December 6, 2011
    Inventor: Axel de Broqueville
  • Publication number: 20110284800
    Abstract: A method and an apparatus for generating a gas containing hydrogen (H2) and carbon monoxide (CO), as a raw material for chemical utilization in, for example, synthesis processes based on export gas from a metallurgical process, are shown. Part of the export gas is subjected to CO conversion with the addition of water vapor, crude synthesis gas with a defined quantity ratio of H2 to CO being formed. Even the water vapor required for CO conversion can be at least partially generated in at least one steam generator in the method.
    Type: Application
    Filed: November 3, 2009
    Publication date: November 24, 2011
    Inventor: Robert Millner
  • Patent number: 8052935
    Abstract: A system for removing sulfur from a gaseous stream includes (a) a reaction bed for receiving the gaseous stream and for reacting sulfur dioxide and at least some of the hydrogen sulfide of the gaseous stream into elemental sulfur to provide an elemental sulfur stream and a first product stream; and (b) a circulating fluidized bed comprising (i) a first region for receiving the first product stream and using a sulfur adsorption material to adsorb and remove any remaining hydrogen sulfide from the first product stream to generate saturated sulfur adsorption material and a second product stream substantially free of sulfur; and (ii) a second region for receiving a regeneration stream and for using the regeneration stream to regenerate the saturated sulfur adsorption material and to generate the sulfur dioxide.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 8, 2011
    Assignee: General Electric Company
    Inventors: Thomas Frederick Leininger, Ke Liu, Wei Wei, Rizeq George Rizeq
  • Publication number: 20110243798
    Abstract: A reactor design and process for the dehydrogenation of hydrocarbons is presented. The reactor design includes a multibed catalytic reactor, where each of the reactor beds are fluidized. The catalyst in the reactor cascades through the reactor beds, with fresh catalyst input into the first reactor bed, and the spent catalyst withdrawn from the last reactor bed. The hydrocarbon feedstream is input to the reactor beds in a parallel formation, thereby decreasing the thermal residence time of the hydrocarbons when compared with a single bed fluidized reactor, or a series reactor scheme.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: UOP LLC
    Inventors: David N. Myers, Lev Davydov
  • Publication number: 20110243799
    Abstract: The apparatus converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: UOP LLC
    Inventors: Joao Jorge da Silva Ferreira Alves, James E. Rekoske, Christopher P. Nicholas
  • Publication number: 20110219680
    Abstract: Equipment and a process to produce biofuel by fast pyrolysis of organic material, comprising a system of three interconnected serial fluidized bed reactors: a fast pyrolysis reactor located inside another reactor wherein charcoal is burned; a combustion reactor that burns the charcoal generated in the fast pyrolysis reactor; and a preheating reactor to preheat inert particulate material. The equipment also includes a pneumatic recycling system for inert particulate material.
    Type: Application
    Filed: April 20, 2010
    Publication date: September 15, 2011
    Applicant: UNIVERSIDAD DE CONCEPCION
    Inventor: Igor Wilkomirsky Fuica
  • Patent number: 8017083
    Abstract: A system of converting oxygenate-containing feedstock to light olefins comprises charging a reactor with catalyst, feeding the feedstock into the reactor, contacting the feedstock with the catalyst and converting the feedstock to olefins while depositing byproducts on catalyst resulting in spent catalyst, regenerating the spent catalyst by combustion gases, and stripping the regenerated catalyst of gases entrained in the regenerating step. The stripping step is accomplished using nitrogen gas to strip the entrained gases from the regenerate catalyst. In one embodiment, regenerated catalyst is passed through a regenerated catalyst stripper before it is returned to the reactor.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: September 13, 2011
    Assignee: UOP LLC
    Inventors: John J. Senetar, Richard A. Johnson, II
  • Patent number: 8007728
    Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The fluid catalytic cracking system can include a reaction zone including a riser having a top and a bottom adapted to receive spent catalyst at a first elevation and regenerated catalyst at a second elevation. Typically, the first elevation is lower than the second elevation. Additionally, the fluid catalytic cracking system can include a gas distributor contained near the bottom of the riser in communication with a hydrocarbon feed.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: August 30, 2011
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert Mehlberg, Keith Allen Couch, Paul Nishimura
  • Patent number: 7993591
    Abstract: A spouted bed device of the present invention includes a cylinder which extends vertically; a closing plate which closes a top end of the cylinder; a decreasing diameter member which is formed at a bottom end of the cylinder, has an inside diameter that decreases progressively downward, and has a gas inlet orifice at a bottom end thereof; and a gas discharge nozzle which passes through the cylinder from an inside surface to an outside surface thereof and which discharges gas from a treatment zone enclosed by a top surface of the decreasing diameter member, a bottom surface of the closing plate and the inside surface of the cylinder. The gas discharge nozzle is provided above a spouted bed which is formed within treatment zone.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 9, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hideki Sato, Hiroyuki Ogawa
  • Patent number: 7993594
    Abstract: The present application provides multistage and multilayer reactors useful for the efficient and continuous production of carbon nanotubes and methods of using the apparatus in the preparation of carbon nanotubes. In one aspect, the multistage reactors include an array of interconnected fluidized-bed reactors. The multilayer reactors include a plurality of reaction zones.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: August 9, 2011
    Assignee: Tsinghua University
    Inventors: Fei Wei, Yi Liu, Weizhong Qian, Guohua Luo
  • Patent number: 7981369
    Abstract: A plant for generating electricity includes a gas turbine, a compressor driven by the gas turbine, a reduction reactor configured to reduce metal oxides, fed with a fuel and having a first circulating fluidized bed, a first cyclone configured to separate the metal oxide solids, and feeding at least a portion of the metal oxide solids to the reduction reactor via a first connecting line, an oxidation reactor configured to oxidize the metal oxides having a second circulating fluidized bed and fed only with pressurized air from the compressor, and a second cyclone configured to separate the metal oxide solids and feeding at least a portion of the metal oxide solids to the oxidation reactor via a second connecting line.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: July 19, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Jean-Xavier Morin, Silvestre Suraniti, Corinne Beal
  • Patent number: 7972562
    Abstract: The present invention relates to a high-pressure fluidized bed reactor for preparing granular polycrystalline silicon, comprising (a) a reactor tube, (b) a reactor shell encompassing the reactor tube, (c) an inner zone formed within the reactor tube, where a silicon particle bed is formed and silicon deposition occurs, and an outer zone formed in between the reactor shell and the reactor tube, which is maintained under the inert gas atmosphere, and (d) a controlling means to keep the difference between pressures in the inner zone and the outer zone being maintained within the range of 0 to 1 bar, thereby enabling to maintain physical stability of the reactor tube and efficiently prepare granular polycrystalline silicon even at relatively high reaction pressure.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: July 5, 2011
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Hee Young Kim, Kyung Koo Yoon, Yong Ki Park, Won Choon Choi
  • Publication number: 20110120560
    Abstract: The present invention relates to a fluidized bed reactor system made up of at least two fluidized bed reactors, comprising at least one main reactor (1) in the form of a circulating fluidized bed and a secondary reactor (2) in the form of a circulating fluidized bed, and also a particle line comprising a particle separator for transporting fluidized bed particles from the main reactor into the secondary reactor, characterized in that, in the lower region of the respective reactor, a line (10) connects the secondary reactor (2) to the main reactor (1) for transporting fluidized bed particles.
    Type: Application
    Filed: August 14, 2008
    Publication date: May 26, 2011
    Inventors: Tobias Proll, Philipp Kolbitsch, Johannes Bolhar-Nordenkampf, Hermann Hofbauer
  • Patent number: 7947230
    Abstract: Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 24, 2011
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
  • Patent number: 7935857
    Abstract: A gas-solids reaction system is provided for improving product recovery in a multiple reactor reaction system. The solids of the product gas-solids flows from the multiple reactors are separated out in a separation vessel having a baffled transition zone. Additional product vapor is stripped from the solids as the solids pass through the baffled transition zone. The solids are then returned to the multiple reactors.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: May 3, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Richard E. Walter, Arun K. Sharma, Jeffrey S. Smith
  • Publication number: 20110033373
    Abstract: A multi-fluidized bed water-gas shift reactor wherein a specific syngas containing a high concentration of carbon monoxide produced by gasification of a heavy carbon source such as coal, vacuum residue, glycerin, etc., is in contact with water under a catalyst so as to produce hydrogen and, in addition, a method for production of hydrogen using the foregoing reactor are disclosed. In other words, the disclosure describes a multi-fluidized bed water-gas shift reactor containing low and high temperature catalysts as well as steam and a method for production of hydrogen using the same, wherein 30 to 70% carbon monoxide in the syngas as a gas mixture containing hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, hydrogen monoxide, and the like, which are generated through partial oxidation and vapor gasification at 900 to 1,600° C., may be favorably converted into hydrogen without mixing both of the catalysts.
    Type: Application
    Filed: November 10, 2009
    Publication date: February 10, 2011
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: See Hoon LEE, Jae Ho KIM, Jung Min SHON
  • Patent number: 7879294
    Abstract: A fine solids recycle apparatus for a fluidized bed reactor comprises an eductor connected to a dipleg extending from a cyclone connected to the reactor, wherein the fine solids particles are removed from the dipleg, mixed with an eductor gas to form an eductor gas-fine solids particles mixture, which allows the return of the fine solids particles to the fluidized bed region, whereby the fine solids is further reacted in the fluidized region to improve reaction efficiency.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: February 1, 2011
    Assignee: Synthesis Energy Systems, Inc.
    Inventor: Gouhai Liu
  • Publication number: 20100316556
    Abstract: The present application provides multistage and multilayer reactors useful for the efficient and continuous production of carbon nanotubes and methods of using the apparatus in the preparation of carbon nanotubes. In one aspect, the multistage reactors include an array of interconnected fluidized-bed reactors. The multilayer reactors include a plurality of reaction zones.
    Type: Application
    Filed: April 18, 2008
    Publication date: December 16, 2010
    Inventors: Fei Wei, Yi Liu, Weizhong Qian, Guohua Luo
  • Patent number: 7842261
    Abstract: The invention pertains to a process for preparing resorbable polyesters by bulk polymerization, wherein the reaction components are melted and homogenized in a reactor, the reaction mixture is then transferred into a polymerization reactor having a lumen defined by a reaction wall, wherein said reactor wall comprises at least two components which are releasably fitted to each other and wherein the shortest distance of any point within said lumen to the reaction wall is less than 8 cm, the reaction mixture is polymerized and the resulting polymer is removed from the polymerization reactor by releasing the components of the reactor wall exposing the resulting polymer lengthwise. The invention further relates to a polymerization reactor having a lumen defined by a reaction wall for performing said process.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: November 30, 2010
    Assignee: Purac Biochem BV
    Inventors: Albert Van Der Wal, Arie Cornelis Mol
  • Patent number: 7842110
    Abstract: Various processes and systems are disclosed for converting carbonaceous materials into a product gas stream. For instance, the product gas stream may be endothermically converted to a gas through a steam reforming process. The present invention is directed to various methods and systems for increasing throughput and efficiency of the system. Further, the present invention is also directed to sulfur removal methods and systems from a gas stream.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: November 30, 2010
    Assignee: Thermochem Recovery International, Inc.
    Inventors: Momtaz N. Mansour, Ravi Chandran
  • Patent number: 7829030
    Abstract: The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of catalyst particles in the reactor, wherein the catalyst particles have a d2 value of greater than about 40 microns. The catalyst particles are contacted with a fluidizing medium under conditions effective to cause the catalyst particles to behave in a fluidized manner and form a fluidized bed. The particles are contacted with one or more primary obstructing members while in the fluidized bed. By fluidizing the catalyst particles in this manner, the catalyst particles can be maintained at an axial gas Peclet number of from about 10 to about 20.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 9, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Jr., Nicolas P. Coute, Jeffrey S. Smith, Michael Peter Nicoletti