With Contact Material Regenerating Means, Per Se, Or Combined With Reactor Patents (Class 422/223)
  • Patent number: 10418653
    Abstract: A fuel reforming device includes a combustion part including a burner; an exhaust part configured to circulate an exhaust gas that is generated from the combustion part; and a reactor that is configured to generate hydrogen from a raw material by absorbing heat from the exhaust gas circulating in the exhaust part. The reactor includes a heat storage member that is configured to absorb the heat from the exhaust gas during operation of the combustion part, store the absorbed heat, and provide the absorbed heat to the reactor.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 17, 2019
    Assignee: LG Electronics Inc.
    Inventors: Hyoungsuk Woo, Choonjae Ryu, Dongkeun Yang
  • Patent number: 9409770
    Abstract: A storage system for an absorbing gas including a plurality briquette units situated within the storage tank is disclosed. In some embodiments, each briquette unit includes a liner or open vessel, and compressed gas-absorbing particulate matter associated with the liner for external support. In some embodiments, the liner or vessel maintains the form of the briquette unit. The liner or vessel do not form a pressure tight vessel, and in some embodiments, the local pressure rating of the liner or vessel is less than the gas pressure within the storage tank. Exemplary gas-absorbing materials include but are not limited to methane and hydrogen adsorbing materials such as activated carbon, zeolite, and other appropriate hydrocarbon gas and/or hydrogen adsorbing materials. Optionally, each briquette unit includes a wrapper for preventing circulation of said particulate matter within the storage tank. Optionally, the storage system includes a mechanism for supplying or removing heat to at least one briquette unit.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: August 9, 2016
    Assignee: ANGSTORE TECHNOLOGIES LTD
    Inventors: Yuri Ginzburg, Vadim Beilin, Baruch Foux, Lev Zaidenberg
  • Patent number: 9399213
    Abstract: Provided is a practical method for dry-separating arsenic compounds from a used NOx removal catalyst contaminated with arsenic. The method for removing arsenic compounds comprises heat-treating a NOx removal catalyst contaminated with arsenic compounds at a predetermined temperature in a reducing atmosphere while exposing the catalyst to hydrocarbon compounds (except CH4) or oxygen-containing carbon compound.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: July 26, 2016
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Masashi Kiyosawa, Norihisa Kobayashi
  • Patent number: 9023286
    Abstract: A process and device for the regeneration of catalyst is presented. The device includes a series of grids within a regeneration vessel, where each grid includes small openings for the passage of gas, and larger openings for the passage of catalyst. The grids span horizontally across the vessel, and are spaced vertically apart to create a flow of catalyst down through the regenerator.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: May 5, 2015
    Assignee: UOP LLC
    Inventors: Richard A. Johnson, II, Paolo Palmas
  • Patent number: 8926919
    Abstract: After absorbing oxygen together with carbon dioxide in an absorber 103, absorbing liquid 104a is supplied to oxygen collecting units 13 and 14. The oxygen collecting units 13 and 14 include silver to collect the oxygen in the absorbing liquid 104a and eliminate the oxygen from the absorbing liquid 104a. A regenerating unit 15 separates and recovers the oxygen collected in one of the two oxygen collecting units 13 and 14 to regenerate the oxygen collecting unit when the other oxygen collecting unit is supplied with the absorbing liquid 104a. A continuous operation can be achieved by switching and using the two oxygen collecting units 13 and 14.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: January 6, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Ogawa, Manabu Sakurai, Yukio Ohashi, Hideo Kitamura
  • Publication number: 20140363352
    Abstract: One exemplary embodiment can be a process for mixing catalyst in a regenerator. The process can include providing a first stream of catalyst, a second stream of catalyst mixed with the first stream of catalyst, and an oxygen-containing gas to a chamber via a distributor of the regenerator. Generally, the chamber imparts a swirl to at least one of the oxygen-containing gas, the first catalyst, and the second catalyst for regenerating the catalyst.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 11, 2014
    Inventor: Charles L. Hemler, JR.
  • Patent number: 8728404
    Abstract: A vessel for regenerating used catalyst comprising at least one combustion zone provided with at least two walls (5a, 5b) between which the catalyst circulates as a moving bed, and provided with at least one conduit (4) for introducing at least one oxygen-containing gas entering the moving bed via one of the walls and leaving via another wall, characterized in that it also comprises a zone (FC) for monitoring and controlling the end of combustion located after the end of the flame front of the last combustion zone (Z2), provided with a conduit (11) for introducing an oxygen-containing monitoring and control gas and at least one means for measuring the temperature and/or the oxygen content in the gas and/or the catalyst leaving the monitoring and control zone. A separator (29) is located between the monitoring and control zone and the last combustion zone for preventing the passage of gas while allowing for the passage of the catalyst.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: May 20, 2014
    Assignee: IFP Energies nouvelles
    Inventors: François-Xavier Brunet, Emmanuelle Bromet, Jean-Marie Deves, Dominique Humeau, Eric Sanchez
  • Patent number: 8721842
    Abstract: A catalytic reaction-rectification integrated process and a catalytic reaction-rectification integrated column, and the specialized device of such process is provided. The reactants are preheated and mixed with catalysts, and then fed into a jet agitation reaction section located in the middle of the catalytic reaction-rectification integrated column from a feeding inlet. The jet agitation reaction section is a kettle-like reactor located in the middle of the catalytic reaction-rectification integrated column. After pressurized by a centrifugal pump, the reactant materials are admitted into a subsonic or transonic agitator located within the reaction section. The reactant materials are ejected into the jet agitation reaction section at high speed, to efficiently mix the solid and liquid phases in the reaction section and to reinforce heat and mass transfer efficiency during the reaction. The liquid reaction mixture is separated and purified directly in the catalytic reaction-rectification integrated column.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: May 13, 2014
    Assignee: Nanjing University
    Inventors: Zhibing Zhang, Zheng Zhou, Youting Wu, Min Shao
  • Patent number: 8695374
    Abstract: A chemical heat pump includes a reactor part (1) that contains an active substance and an evaporator/condenser part (3) that contains that portion of volatile liquid that exists in a condensed state and can be absorbed by the active substance. A channel (4) interconnects the reactor part and the evaporator/condenser part, In at least the reactor part a matrix (13) is provided for the active substance so that the active substance both in its solid state and its liquid state or its solution phase is held or carried by or bonded to the matrix. The matrix is advantageously an inert material such as aluminum oxide and has pores, which are permeable for the volatile liquid and in which the active substance is located. In particular, a material can be used that has a surface or surfaces, at which the active substance can be bonded in the liquid state thereof. For example, the matrix can be a material comprising separate particles such as a powder or a compressed fiber material.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: April 15, 2014
    Assignee: Climatewell AB (Publ)
    Inventors: Ray Olsson, Göran Bolin
  • Patent number: 8603406
    Abstract: 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: Grant
    Filed: August 30, 2010
    Date of Patent: December 10, 2013
    Assignee: UOP LLC
    Inventors: David N. Myers, Daniel N. Myers, Paolo Palmas, Laura E. Leonard, Wolfgang A. Spieker
  • Patent number: 8478446
    Abstract: A method of configuration of combustion process control. The method includes providing a combustion system having a plurality of burner elements, a plurality of gas injection points and a controller. The gas injection points are configured to provide a support gas. One or more tasks for operation of the combustion system are determined. A plurality of groupings of the gas injection points are determined for each of the one or more tasks. An individual ranking for each of the plurality of groupings is determined in response to the one or more tasks. A composite ranking of injection points in response to the individual rankings and the controller is configured to operate the plurality of gas injection points in response to the composite ranking. A combustion system and a method for operating a combustion system are also disclosed.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: July 2, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jeffrey William Kloosterman, Mark Daniel D'Agostini, Kevin Boyle Fogash
  • Publication number: 20130149211
    Abstract: A carbocatalyst for use in oxidation and polymerization reactions includes particles having a carbon and oxygen-containing material, such as catalytically-active graphene oxide and/or catalytically-active graphite oxide. In some cases, the particles are disposed on a solid support formed of a carbon-containing material, such as graphene or graphite, or a non-carbon containing material, such as a metallic or insulating material.
    Type: Application
    Filed: May 27, 2011
    Publication date: June 13, 2013
    Applicant: GRAPHEA, INC.
    Inventors: Christopher W. Bielawski, Daniel R. Dreyer
  • Patent number: 8431081
    Abstract: Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, Fe2O3. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 30, 2013
    Assignee: Rentech, Inc.
    Inventors: Belma Demirel, Mark S. Bohn, Charles B. Benham, James E. Siebarth, Mark D. Ibsen
  • Patent number: 8388902
    Abstract: A method for regenerating activated coke used for treating wastewater or sewage is provided. The method includes loading the activated coke to an environment under 150 to 250° C., heating the activated coke to a temperature of 700 to 850° C. for about 40 to 90 minutes; and providing a steam to the activated coke with a rate of 0.1 to 0.5 m3/(ton of activated coke). When the activated coke is being heated at the temperature, it generates a gas mixture including a steam portion and at least a paraffine gas. The gas mixture flows along a reverse direction relative to a flow of cooling water, so that the steam portion is converted into a part of the cooling water for recycling. The paraffine gas is used as a fuel. An apparatus for regenerating the activated coke used for treating wastewater or sewage is also provided.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: March 5, 2013
    Assignees: Dawei Zhang, Mississippi International Water, Inc.
    Inventor: Dawei Zhang
  • Patent number: 8388840
    Abstract: Device for stiffening the plates of a multi-stage column with a diameter of more than 2 meters, whereby each plate supports a particle bed and the flow of at least one fluid passes through it from top to bottom, whereby said device consists of a number of beams that are located under the plate in question, each beam having a lower surface that is shaped like a triangle.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: March 5, 2013
    Assignee: IFP Energies Nouvelles
    Inventors: Frederic Augier, Denis Darmancier, Gerard Hotier
  • Patent number: 8383052
    Abstract: Catalyst regenerators and methods for using same. The regenerator can include a regenerator housing containing a dense phase catalyst bed for receiving a catalyst to be regenerated. A heater can be disposed in the regenerator and can have a fuel nozzle configured to eject a mixture of fuel and an oxygen-lean gas for combustion to supplement the heat to satisfy the reactor heat demand when a light feedstock cracked that may not provide sufficient coke formation on the catalyst to fully satisfy the reactor heat demand.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: February 26, 2013
    Assignee: Kellogg Brown & Root LLC
    Inventor: Phillip K. Niccum
  • Patent number: 8337757
    Abstract: A method is provided for controlling the operating temperature of a catalytic reactor using a closed-loop system that provides for varying the reactor input and other operating parameters in order to maintain the operating temperature of the reactor at or near the initial setpoint temperature for operation of the reactor. In one example, maximum and minimum operating temperatures with a catalytic partial oxidation reactor are controlled, as well as maintaining control over the corresponding minimum required ratio of oxygen atoms to carbon atoms, such that the operating temperature within the reactor is maintained below the material limits but above threshold temperatures for coking.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: December 25, 2012
    Assignee: Precision Combustion, Inc.
    Inventors: Subir Roychoudhury, Joel M. Desjardins, David Spence, Richard Mastanduno, Dennis E. Walsh, William C. Pfefferle
  • Publication number: 20120296138
    Abstract: A method is disclosed for making styrene and/or ethylbenzene by reacting toluene with a C1 source in the presence of a catalyst in a reactor sized and configured to provide for a moving catalyst bed therethrough to form a product stream including styrene and/or ethylbenzene.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 22, 2012
    Applicant: FINA TECHNOLOGY, INC.
    Inventor: Joseph E. Pelati
  • Patent number: 8219247
    Abstract: A method of operating a furnace having process tubes and multiple burners where it is desired to conform the temperatures of the process tubes to selected target temperature criterion. The present method provides a systematic and quantitative approach to determine how to adjust burner flow rates to result in desired tube wall temperatures, for example to minimize the temperature deviation between tube wall temperatures at a predetermined elevation in the furnace.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 10, 2012
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ali Esmaili, William Robert Licht, Xianming Jimmy Li, Oliver J. Smith, IV
  • Patent number: 8216522
    Abstract: Catalyst regeneration vessels including a chlorination zone that includes an outer mixing chamber, an inner mixing chamber, and a catalyst bed. The outer mixing chamber can include a lower portion and an upper portion, the lower portion of the outer mixing chamber including at least one air nozzle that injects a drying air stream into the outer mixing chamber, at least one chlorine input nozzle that injects a chlorine input stream into the outer mixing chamber, and at least a first baffle. The chlorination zone can also contain a second baffle that directs the mixed drying air stream and chlorine input stream from the outer mixing chamber to the inner mixing chamber.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: July 10, 2012
    Assignee: UOP LLC
    Inventors: Bing Sun, Paul A. Sechrist
  • Patent number: 8192695
    Abstract: Disclosed is a reactor or sparging vessel suitable for use for reaction mixtures containing vapor and/or gas bubbles. It comprises a mechanical agitation means suitable to redistribute flow radially and at least one perforated plate suitable to provide resistance to axial flow. In desirable embodiments it may include at least one electrically or hydraulically-stimulated rotatable shaft upon which at least one blade impeller is mounted, and at least one perforated plate oriented such that it provides resistance to axial flow. The perforated plate may have channels therethrough whose cross-sectional dimension is smaller than the projected average diameter of the vapor and/or gas bubbles. The reactor or sparging vessel offers improved flow dynamics, including reduced back mixing and narrowed residence time distribution. A method of employing the reactor for a reaction mixture containing vapor and/or gas bubbles is also disclosed. An impeller blade having two curvatures is also disclosed.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: June 5, 2012
    Assignee: Fina Technology, Inc.
    Inventors: Laurent Doucet, Philippe Tanguy, Doug Berti, Thanh Nguyen, Guillaume Franc, Jay Reimers
  • Patent number: 8182772
    Abstract: This specification discloses a radial flow continuous reaction/regeneration apparatus. Through employing a rotary device to individually and annularly distributing process fluid and regeneration fluid into a stationary segmented reaction/regeneration box and receiving effluents individually and annularly from the same stationary reaction/regeneration box, the mentioned radial flow continuous reaction/regeneration apparatus can be operated continuously and efficiently without the need for shutting down for regeneration. This radial flow continuous reaction/regeneration apparatus is not only used to separate components by adsorption, such as dehumidification, but also is used in chemical processes to carry out catalytic reaction, regenerate catalyst and used as filtration device to trap particles by changing the filler in the stationary reaction/regeneration box.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: May 22, 2012
    Inventor: Leon Yuan
  • Patent number: 8173567
    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 8, 2012
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Lawrence A. Lacijan, Sujay R. Krishnamurthy, Mohammad-Reza Mostofi-Ashtiani, Paul S. Nishimura, Lisa M. Wolschlag
  • Publication number: 20120104322
    Abstract: Embodiments of a process for producing syngas comprising hydrogen and carbon monoxide from a gas stream comprising methane are provided. The process comprises the step of contacting the gas stream with a two-component catalyst system comprising an apatite component and a perovskite component at reaction conditions effective to convert the methane to the syngas.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Applicant: UOP LLC
    Inventors: Colleen Costello, Lisa King, Paul Barger, Deng-Yang Jan, Robert B. James, Kurt Vanden Bussche
  • Publication number: 20120051981
    Abstract: 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: Application
    Filed: August 30, 2010
    Publication date: March 1, 2012
    Applicant: UOP LLC
    Inventors: David N. Myers, Daniel N. Myers, Paolo Palmas, Laura E. Leonard, Wolfgang A. Spieker
  • Publication number: 20110226664
    Abstract: A process for producing hydrocarbon products, comprising: a) operating a process unit in an alkylate mode wherein greater than 50 wt % of a C5+ hydrocarbon stream from the process unit boils at 137.8° C. or below, b) adjusting one or more process conditions in the process unit, and c) after the adjusting step, operating the process unit in a distillate mode wherein greater than 50 wt % of the C5+ hydrocarbon stream from the process unit boils above 137.8° C. Also, a process unit, comprising: a) an alkylation reactor; and b) a control system that enables the alkylation reactor to be operated in the alkylate mode and in the distillate mode; wherein the alkylation reactor can switch back and forth from operating in the alkylate mode to the distillate mode.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Inventors: Hye-Kyung Timken, Shawn Winter, Howard S. Lacheen, Sven Ivar Hommeltoft
  • Publication number: 20110226669
    Abstract: A process comprising adjusting a level of conjunct polymers in an ionic liquid catalyst between a low level that favors production of C5+ products boiling at 137.8° C. or below and a higher level that favors production of both C5+ products boiling at 137.8° C. or below and C5+ products boiling above 137.8° C.; wherein the adjusting is done in response to market demand. A process unit, comprising a reactor that operates with an ionic liquid catalyst comprising a low level or a higher level of conjunct polymers, and the alkylation reactor is switched between operating with the low and the higher levels in response to market demand. A process unit, comprising a reactor that operates in an alkylate mode and a distillate mode, and a catalyst regenerator that operates with varying severity to adjust the level of conjunct polymers in response to demand for gasoline or distillate.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Inventors: Hye-Kyung Timken, Shawn Winter, Howard S. Lacheen, Sven Ivar Hommeltoft
  • Publication number: 20110190113
    Abstract: The present invention relates to a continuous catalyst regeneration device comprising at least one burning zone formed by at least one annular combustion zone (3), centred along a longitudinal axis (A), in which the catalyst circulates, an inlet conduit of the catalyst (4) and an outlet conduit of the catalyst (4?), an external zone (11) for circulation of a combustive gas disposed around the annular combustion zone (3) and an internal circulation zone (15) disposed inside the annular combustion zone (3), wherein the burning zone is divided into sectors (14) by hermetic longitudinal plates (10) disposed radially relative to the longitudinal axis (A) of the regenerator. The invention also relates to the process using this device.
    Type: Application
    Filed: July 23, 2009
    Publication date: August 4, 2011
    Inventors: Beatrice Fischer, Eric Sanchez, Gilles Ferschneider
  • Patent number: 7985381
    Abstract: Catalyst regeneration vessels including a chlorination zone that includes an outer mixing chamber, an inner mixing chamber, and a catalyst bed. The outer mixing chamber can include a lower portion and an upper portion, the lower portion of the outer mixing chamber including at least one air nozzle that injects a drying air stream into the outer mixing chamber, at least one chlorine input nozzle that injects a chlorine input stream into the outer mixing chamber, and at least a first baffle. The chlorination zone can also contain a second baffle that directs the mixed drying air stream and chlorine input stream from the outer mixing chamber to the inner mixing chamber.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: July 26, 2011
    Assignee: UOP LLC
    Inventors: Bing Sun, Paul Alvin Sechrist
  • Patent number: 7964156
    Abstract: Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, Fe203. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: June 21, 2011
    Assignee: Rentech, Inc.
    Inventors: Belma Demirel, Mark S. Bohn, Charles B. Benham, James E. Siebarth, Mark D. Ibsen
  • Publication number: 20110136655
    Abstract: One exemplary embodiment can be a process for facilitating a transfer of a metal catalyst component from at least one donor particle to at least one recipient particle in a catalytic naphtha reforming unit. The process can include transferring an effective amount of the metal catalyst component from the at least one donor particle to the at least one recipient particle under conditions to effect such transfer to improve a conversion of a hydrocarbon feed.
    Type: Application
    Filed: February 11, 2011
    Publication date: June 9, 2011
    Applicant: UOP LLC
    Inventors: Mark P. Lapinski, Gregory J. Gajda, Jeffry T. Donner, Richard R. Rosin, Marc R. Schreier, Simon R. Bare
  • Publication number: 20110052458
    Abstract: A process and systems for efficiently deacidizing a gaseous mixture is described. The process and systems utilize a self-concentrating absorbent that absorbs an acid gas at reduced overall energy costs for the deacidizing operation.
    Type: Application
    Filed: November 5, 2010
    Publication date: March 3, 2011
    Inventor: Liang HU
  • Publication number: 20110054200
    Abstract: Described herein are systems and processes for the transesterification of a variety of feedstocks, such as in the form of glyceride-containing vegetable oils, glyceride-containing animal oils, and glyceride-containing algal oils, into biodiesel products using solid, heterogeneous catalysts.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 3, 2011
    Inventors: Yang Cai, Jennifer A. Nieweg, Wayne Anthony Turner, Carla Kern Wilkinson
  • Patent number: 7879297
    Abstract: A method of operating a carbon-to-liquids system is provided. The method includes receiving a flow of syngas at the carbon-to-liquids system, shifting the syngas to facilitate increasing a hydrogen to carbon monoxide ratio (H2/CO) of the syngas, adding additional hydrogen to the shifted syngas to increase the H2/CO ratio, reacting the hydrogen/shifted syngas mixture with a catalyst in a vessel, extracting hydrogen from the syngas mixture, recycling the hydrogen to facilitate increasing the H2/CO ratio, and recycling naphta to act as solvent for wax extraction, and to facilitate catalyst recovery.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: February 1, 2011
    Assignee: General Electric Company
    Inventors: Paul Steven Wallace, Arnaldo Frydman
  • 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
  • Patent number: 7846401
    Abstract: The overall efficiency of a regenerative bed reverse flow reactor system is increased where the location of the exothermic reaction used for regeneration is suitably controlled. The present invention provides a method and apparatus for controlling the combustion to improve the thermal efficiency of bed regeneration in a cyclic reaction/regeneration processes. The process for thermal regeneration of a regenerative reactor bed entails (a) supplying the first reactant through a first channel means in a first regenerative bed and supplying at least a second reactant through a second channel means in the first regenerative bed, (b) combining said first and second reactants by a gas mixing means situated at an exit of the first regenerative bed and reacting the combined gas to produce a heated reaction product, (c) passing the heated reaction product through a second regenerative bed thereby transferring heat from the reaction product to the second regenerative bed.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: December 7, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Frank Hershkowitz, Jeffrey W. Frederick
  • Patent number: 7815873
    Abstract: The overall efficiency of a regenerative bed reverse flow reactor system is increased where the location of the exothermic reaction used for regeneration is suitably controlled. The present invention provides a method and apparatus for controlling the combustion to improve the thermal efficiency of bed regeneration in a cyclic reaction/regeneration processes. The process for thermal regeneration of a regenerative reactor bed entails (a) supplying the first reactant through a first channel means in a first regenerative bed and supplying at least a second reactant through a second channel means in the first regenerative bed, (b) combining said first and second reactants by a gas mixing means situated at an exit of the first regenerative bed and reacting the combined gas to produce a heated reaction product, (c) passing the heated reaction product through a second regenerative bed thereby transferring heat from the reaction product to the second regenerative bed.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: October 19, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Krishnan Sankaranarayanan, Frank Hershkowitz, Jeffrey W. Frederick, Rajeev Agnihotri
  • Patent number: 7803326
    Abstract: One exemplary embodiment can include an apparatus for transferring catalyst from a regeneration zone to a reaction zone in a hydrocarbon conversion unit. The hydrocarbon conversion unit can include a transfer vessel, and first, second, and third lines. The transfer vessel can transfer regenerated catalyst from the regeneration zone at a first pressure to the reaction zone at a second pressure where the second pressure is greater than the first pressure. Generally, the first line communicates the catalyst to the transfer vessel and is coupled to a first valve to allow catalyst into the transfer vessel and the second line communicates the catalyst from the transfer vessel and is coupled to a second valve to allow catalyst out of the transfer vessel. The third line for allowing the passage of gas therethrough may be at a pressure higher than the first pressure having a first portion communicating with the transfer vessel and having a second portion coupled to third and fourth valves.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: September 28, 2010
    Assignee: UOP LLC
    Inventors: David J. Fecteau, Paul A. Sechrist, Christopher Naunheimer
  • Publication number: 20100239475
    Abstract: Hydrocarbon feed to a catalytic reactor can be heat exchanged with flue gas from a catalyst regenerator. This innovation enables recovery of more energy from flue gas thus resulting in a lower flue gas discharge temperature. As a result, other hot hydrocarbon streams conventionally used to preheat hydrocarbon feed can now be used to generate more high pressure steam.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 23, 2010
    Inventors: Yunbo Liu, Xin X. Zhu, Daniel N. Myers, Patrick D. Walker
  • Patent number: 7780928
    Abstract: An improved radial or cross flow moving bed regenerator or reactor, in which the solid particle residence time in the vessels can be changed in different section of the regenerator or reactor. The improvement results from the placement of one or multiple screen inserts which divides the radial or cross flow bed into separate solid flow channels. The residence time of the solid in each solid flow channels are optimized based on the regeneration or reaction requirement by changing the location, orientation and geometry of the screen inserts. As a result of the optimization of solid residence time in different section in the radial flow bed, the efficiency of a regenerator or a reactor is improved.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: August 24, 2010
    Inventor: Leon Yuan
  • Patent number: 7776284
    Abstract: To provide a decomposition apparatus and a decomposition system which can prolong the catalyst life and which can efficiently decompose a large amount of waste plastics and organics.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: August 17, 2010
    Assignee: Kusatsu Electric Co., Ltd.
    Inventors: Tatsuo Kitamura, Yoshihide Kitamura, Itsushi Kashimoto
  • Publication number: 20100166620
    Abstract: A system and process for continuous production of fatty acid methyl esters (FAME) from the fatty acid triglycerides of waste oil via transesterification in the presence of a reusable sugar-based catalyst. The system and process incorporates re-cycling and re-use of waste bi-product streams to result in a near-zero emissions, with a 97% product yield mix consisting of almost pure biodiesel and a very small percentage of impurities including glycerol.
    Type: Application
    Filed: November 18, 2009
    Publication date: July 1, 2010
    Inventors: Stephanie Marie Gurski, Anam Kazim, Hoi Ki Cheung, Amani Obeid
  • Publication number: 20100086459
    Abstract: An impurity removing apparatus is simple in structure for removing impurities from a rare gas and enable to make the rare gas reusable. The impurity removing apparatus includes a first treatment device 21 for removing fluorine and fluorine compound which are mixed with a rare gas discharged from an excimer laser oscillation apparatus 10, a second treatment device 23 for removing oxygen generated by the first treatment device, and a circulation device 25 for circulating the rare gas discharged from the excimer laser oscillation apparatus 10 and returning the rare gas to the excimer laser oscillation apparatus 10.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 8, 2010
    Inventors: Hiroshi Ikeda, Takashi Kyotani, Yasuhiko Suzuki, Masaaki Osato
  • Patent number: 7678344
    Abstract: Process and device for regeneration of a used absorbent from a desulfurization zone or from the desulfurization of a gas containing sulfur oxides, comprising regeneration simultaneously with filtering of the absorbent, in a reducing atmosphere, wherein partial combustion of a regeneration gas is also carried out upstream from regeneration, the products of the partial combustion being mixed with the used absorbent prior to the regeneration-filtration stage. The absorbent may be, e.g., solid absorbents based on magnesium oxide. The regeneration gas may be hydrogen sulfide and/or a hydrocarbon. For example, H2S can be partially combusted and the products of the partial combustion, including H2S, H2, SO2 and sulfur, mixed with the used absorbent prior to the regeneration-filtration stage.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: March 16, 2010
    Assignee: Institut Francais du Petrole
    Inventors: Etienne Lebas, Gérard Martin, Christian Streicher
  • Patent number: 7674438
    Abstract: In some embodiments, a monoolefin production system comprising an extraction-hydrogenation zone for extracting a highly unsaturated hydrocarbon from an olefin stream into a polar solvent and, in situ, hydrogenating the highly unsaturated hydrocarbon to a monoolefin. In other embodiments, monoolefin production systems include an extraction-hydrogenation zone for performing the extraction and hydrogenating steps in situ. In alternative embodiments, the hydrogenation zone is disposed downstream from the extraction zone.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: March 9, 2010
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Tin-Tack Peter Cheung, Marvin M. Johnson
  • Patent number: 7670568
    Abstract: A method of reactivating a catalyst, such as a solid catalyst or a liquid catalyst is provided. The method comprises providing a catalyst that is at least partially deactivated by fouling agents. The catalyst is contacted with a fluid reactivating agent that is at or above a critical point of the fluid reactivating agent and is of sufficient density to dissolve impurities. The fluid reactivating agent reacts with at least one fouling agent, releasing the at least one fouling agent from the catalyst. The at least one fouling agent becomes dissolved in the fluid reactivating agent and is subsequently separated or removed from the fluid reactivating agent so that the fluid reactivating agent may be reused. A system for reactivating a catalyst is also disclosed.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: March 2, 2010
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Daniel M. Ginosar, David N. Thompson, Raymond P. Anderson
  • Patent number: 7638101
    Abstract: This invention relates to regeneration of coked catalyst by combustion so that the catalyst can be reused in a hydrocarbon conversion reaction. The completion of coke burn is generally measured with a combination of temperature or change in oxygen concentration. Dropping outlet temperatures require time to wait for increases in inlet temperature to correspondingly move down the regenerator. Faster response times might be expected from increasing oxygen concentration, but a small increase in concentration can lead to a significant increase in peak burn temperature which negatively impacts catalyst life. Controlled peak burning is difficult over the entire bed by merely controlling inlet and outlet oxygen concentrations. The invention accordingly combines a measured lag time for temperature travel with an inlet temperature ramping step to ensure complete coke combustion with high oxygen efficiency, thus providing a rapid regeneration that permits more time for operation at desired reaction conditions.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: December 29, 2009
    Assignee: UOP LLC
    Inventors: Leon Yuan, James L. Bixby, Kyle P. Austin, Brian D. Nabozny
  • Patent number: 7611677
    Abstract: This invention relates to a staged-zone reactor of the axial-flow type that makes it possible to implement strongly endothermic or exothermic reactions. The reactor comprises a constriction of the catalytic bed between an upper zone (3a) and a lower zone (3b), making it possible to house in the reactor a heat exchanger for the intermediate heating or cooling of the effluents. Process of chemical conversion using this reactor for exothermic or endothermic reactions in the gas and/or liquid phase, and in particular for the oligomerization reaction of C2 to C12 fractions for the purpose of producing a diesel fraction.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: November 3, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Sylvain Louret, Patrice Font, Sylvie Lacombe, Eric Sanchez, Laurent Simon
  • Publication number: 20090250377
    Abstract: In one aspect, the invention includes an apparatus for pyrolyzing a hydrocarbon feedstock in a regenerative pyrolysis reactor system, the apparatus comprising a regenerative pyrolysis reactor comprising a stabilized refractory grade zirconia in a reactive region of the reactor system. In another aspect, this invention includes a method for pyrolyzing a hydrocarbon feedstock using a reverse flow regenerative pyrolysis reactor comprising the steps of providing a reverse flow regenerative pyrolysis reactor including a stabilized refractory grade zirconia in a heated reaction zone of the reactor; and pyrolyzing a hydrocarbon feedstock within the reactive region.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 8, 2009
    Inventors: Changmin Chun, Frank Hershkowitz
  • Patent number: 7553460
    Abstract: A process for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, flashing the mixture to form a vapor phase and a liquid phase which collect as bottoms and removing the liquid phase, separating and cracking the vapor phase, and cooling the product effluent.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: June 30, 2009
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Richard C. Stell, Jennifer L. Bancroft, Arthur R. Dinicolantonio, Subramanian Annamalai, James N. McCoy, Paul F. Keusenkothen, George Stephens, John R. Messinger, James Mitchell Frye, Nick G. Vidonic, George J. Balinsky