In Gaseous Suspension (e.g., Fluidized Bed, Etc.) Patents (Class 502/41)
  • Patent number: 9555389
    Abstract: Systems and methods for injecting gas into a fluidized bed of particles are provided. The system can include a gas distribution system. The gas distribution system can include a header having a flow passage and a nozzle body coupled to the header. The nozzle body can have an inlet end in fluid communication with the flow passage and an outlet end positioned outside of the header. The nozzle body can have a longitudinal axis that is substantially perpendicular to a direction of flow through the flow passage. The nozzle body can have an orifice positioned between the inlet end and the outlet end.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: January 31, 2017
    Inventors: Ting Yee Chan, Phillip K. Niccum, Steven Arthur Tragesser, Raymond Herbrich, Christopher Flint
  • Patent number: 9447009
    Abstract: A method of preparing acrolein from glycerol or glycerine is disclosed. The method includes dehydrating glycerol or glycerine in the presence of a catalyst consisting of at least (a) a mixed oxide of zirconium and at least one metal, said metal being selected from niobium, tantalum and vanadium, or (b) a zirconium oxide and at least one metal oxide, the metal being selected from niobium, tantalum and vanadium, or (c) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, or (d) a titanium oxide and a mixed oxide of zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: September 20, 2016
    Assignees: ADISSEO FRANCE S.A.S., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Virginie Belliere-Baca, Stephane Loridant, Jean-Marc Millet, Pascaline Lauriol-Garbey
  • Patent number: 9297705
    Abstract: A temperature measuring device having a smart chip, or electronic circuit, integrated therein is provided. The smart chip, or electronic circuit, includes at least a unique identification number or data specific to the particular temperature measuring device stored thereon. The electronic circuit further includes calibration data of the temperature measuring device stored thereon. A module controller of a temperature control system is configured to verify the unique identification number of the thermocouple assembly prior to allowing data to be transferred between the temperature measuring device and a temperature controller. A graphical user interface allows an operator to enter the unique identification number or data to verify the temperature measuring device and display an error message if the number or data entered is not equivalent, or does not match, the unique identification number or data stored on the electronic circuit.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: March 29, 2016
    Assignee: ASM America, Inc.
    Inventors: Ravinder K. Aggarwal, Rand Conner
  • Patent number: 8883666
    Abstract: One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator. The feed can include at least one of a gas oil, a vacuum gas oil, an atmospheric gas oil, a coker gas oil, a hydrotreated gas oil, a hydrocracker unconverted oil, and an atmospheric residue.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: November 11, 2014
    Assignee: UOP LLC
    Inventors: Daniel N. Myers, Paolo Palmas, David N. Myers
  • Patent number: 8832963
    Abstract: Disclosed is a process of stabilizing spent filter material that comprises mixing the filter media with a city media to produce a composition having a moisture content that is sufficiently low to retard microbial growth. The composition comprises spent filter media and a dry material, and preferably comprises diatomaceous earth. Soil is treated by adding the composition as a top dressing, soil amendment, or the like.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: September 16, 2014
    Assignee: Grain Processing Corporation
    Inventor: Sarjit Johal
  • Publication number: 20140249022
    Abstract: Apparatuses and methods are disclosed for contacting radially flowing fluids with solid particles (e.g., catalyst) with reduced tendency for fluidization of the particles, and especially a sealing portion of the particles at the top of a particle retention zone disposed between screens at upstream and downstream positions relative to radial fluid flow. Fluidization is reduced or eliminated by offsetting openings of the screens in the axial direction, such that upstream openings in the upstream screen are above highest downstream openings in a downstream stream. The offset in openings imparts a downward flow component to radially flowing fluid, thereby reducing solid particle fluidization without the need to induce a specific pressure drop profile along the entire axial direction of the screens.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: UOP LLC
    Inventors: Bing Sun, Paul A. Sechrist
  • Patent number: 8822363
    Abstract: This disclosure relates to a process for regenerating a catalyst composition, wherein the catalyst composition comprising a molecular sieve and at least 10 wt. % coke having a C/H molar ratio in the range of 0.26 to 5, the process comprising (a) contacting the catalyst composition with a first oxidative medium having oxygen and water at first conditions sufficient to form a first regenerated catalyst composition having at least 50 wt.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: September 2, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Doron Levin, James Harding Beech, Jr., Selma SheungNam Lawrence, Julia Elizabeth Steinheider
  • Patent number: 8815762
    Abstract: 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: Grant
    Filed: May 22, 2013
    Date of Patent: August 26, 2014
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Daniel R. Johnson
  • Patent number: 8791038
    Abstract: The object of the present invention is to provide a catalyst regeneration process which can improve catalyst selectivity. A first aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a first fluidized bed regenerator and contacted with an oxygen-containing gas stream and optional steam to carry out a coke combustion reaction, wherein the resultant mixture of the partially regenerated catalyst and flue gas is introduced into a second fluidized bed regenerator and contacted with steam and an optional oxygen-containing gas stream to carry out a further regeneration reaction, and then the regenerated catalyst is introduced into the reactor. A second aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a fluidized dense bed regenerator and contacted with an oxygen-containing gas stream and steam to carry out a coke combustion reaction, and then the regenerated catalyst is introduced into the reactor.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 29, 2014
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Youhao Xu, Shouye Cui, Zhigang Zhang, Weimin Lu
  • Patent number: 8680000
    Abstract: The invention concerns a process for regenerating a catalyst for the production of aromatic hydrocarbons or for reforming, comprising a step for combustion in a zone A comprising at least 2 beds A1 and A2, a step for oxychlorination in a zone B, and a step for calcining in a zone C. A portion of the effluent gas from the oxychlorination zone is recycled via at least one scrubbing section D to the inlet to beds A1 and A2. Further, a portion of the effluent gas from zone B is recycled to the combustion bed A2, passing via a blower but without passing via said scrubbing section D, and a portion is recycled to the inlet to zone B, passing via said blower but not via said scrubbing section. The invention also concerns the vessel in which said process is carried out.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: March 25, 2014
    Assignee: IFP Energies nouvelles
    Inventors: Xavier Decoodt, Sebastien Durand, Pierre Yves Le-Goff, Stephane Wermester
  • Patent number: 8673801
    Abstract: The invention concerns a process for regenerating a catalyst for the production of aromatic hydrocarbons or for reforming. Said process comprises a step for combustion in a zone A comprising at least 2 beds A1 and A2, a step for oxychlorination in a zone B, and a step for calcining in a zone C. A portion of the effluent gas from the oxychlorination zone is recycled via at least one scrubbing section D to the inlet to beds A1 and A2. Further, a portion of the effluent gas from zone B is recycled, passing via a blower and without passing via said scrubbing section D, to the combustion bed A2.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: March 18, 2014
    Assignee: IFP Energies nouvelles
    Inventors: Xavier Decoodt, Sébastien Durand, Pierre-Yves Le-Goff, Stéphane Wermester
  • Patent number: 8647998
    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), centered 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: Grant
    Filed: July 23, 2009
    Date of Patent: February 11, 2014
    Assignee: IFP Energies Nouvelles
    Inventors: Beatrice Fischer, Eric Sanchez, Gilles Ferschneider
  • Patent number: 8618011
    Abstract: Systems and methods for regenerating a spent catalyst are provided. The method can include heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon product and coked catalyst particles. The cracked hydrocarbon product and the coked catalyst particles can be selectively separated to provide a hydrocarbon product and coked catalyst particles. The coked catalyst particles can be mixed with a carrier fluid to provide a mixture. The mixture can be introduced to an upper surface of a dense phase catalyst zone disposed within a regenerator. A gas can be introduced to a lower zone of the dense phase catalyst zone. At least a portion of the carbon deposited on the coked catalyst particles can be combusted to provide a flue gas, heat, and a regenerated catalyst.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: December 31, 2013
    Assignee: Kellogg Brown & Root LLC
    Inventors: Phillip K. Niccum, Alan M. Claude, Robert B. Peterson
  • Patent number: 8618012
    Abstract: Systems and methods for regenerating a spent catalyst are provided. The method can include mixing a spent catalyst with a carrier fluid to provide a mixture. The spent catalyst can include carbon deposited on at least a portion thereof. The carrier fluid can include an oxygen containing gas. The mixture can be introduced to or above an upper surface of a dense phase catalyst zone disposed within a regenerator. A gas can be introduced to a lower zone of the dense phase catalyst zone. At least a portion of the carbon deposited on the catalyst can be combusted to provide a flue gas, heat, and a regenerated catalyst.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: December 31, 2013
    Assignee: Kellogg Brown & Root LLC
    Inventors: Phillip K. Niccum, Alan M. Claude, Robert B. Peterson
  • Patent number: 8575053
    Abstract: A process is provided for increasing mixing in a regenerator. Streamlines of gas and some catalyst may form in a regenerator as a result of cyclone inlet horns positioned in the same direction. Overall mixing in the regenerator may decrease because of these streamlines. A dampening device may be used to interrupt the streamlines and increase mixing in the regenerator. The dampening device may be a baffle and direct streamlines from the outside of the chamber toward the center to collide and mix. In another embodiment, a dampening device may be a secondary disengager such as a T-disengager or an inverted can arrangement that may discharge gas and catalyst near the center of the upper chamber and interrupt the streamlines. In another embodiment, a dampening device may have swirl arms that redirect stream lines counter to the direction of flow.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 5, 2013
    Assignee: UOP LLC
    Inventors: Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Keith A. Couch
  • Patent number: 8563455
    Abstract: 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: Grant
    Filed: September 30, 2010
    Date of Patent: October 22, 2013
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Daniel R. Johnson
  • Patent number: 8551326
    Abstract: This invention describes a two-stage regeneration zone that has a regenerated catalyst circuit such as the one that results from the mixing of a partially regenerated catalyst with a residual coke rate of between 0.3 and 0.7% and a totally regenerated catalyst with a coke rate that is less than 0.15%. All things being equal, this double-population regenerated catalyst enables the maximization of the LCO yield.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: October 8, 2013
    Assignee: IFP Energies Nouvelles
    Inventors: Romain Roux, Thierry Gauthier
  • Publication number: 20130172173
    Abstract: This invention relates to a process and an apparatus for regeneration of spent FCC catalyst using multiple reactors operation resulting in wide variation of coke on spent catalyst are disclosed. This process uses an up flow regenerator with divided injection of spent catalyst based on their coke content to control the residence time for its efficient regeneration and reduced hydrothermal deactivation. This system has the advantage of minimizing the exposure to the high temperature of low coked catalyst to the minimum possible time and high coke contained catalyst to the required time for its complete regeneration.
    Type: Application
    Filed: July 4, 2011
    Publication date: July 4, 2013
    Applicant: INDIAN OIL CORPORATION LTD.
    Inventors: S. Mukthiyar, P.R. Pradeep, Debasis Bhattacharyya, V.K. Satheesh, G. Saidulu
  • Patent number: 8415264
    Abstract: One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator. The feed can include at least one of a gas oil, a vacuum gas oil, an atmospheric gas oil, a coker gas oil, a hydrotreated gas oil, a hydrocracker unconverted oil, and an atmospheric residue.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 9, 2013
    Assignee: UOP LLC
    Inventors: Daniel N. Myers, Paolo Palmas, David Nathan Myers
  • Patent number: 8372770
    Abstract: This invention is directed to a process for regenerating a deactivated reforming catalyst by circulating a first oxygen-containing gas stream from a gas compressor to a catalyst bed in a reforming reaction zone in order to remove at least a portion of the carbonaceous deposits on the reforming catalyst. Then, a second oxygen-containing gas stream is further circulated from the gas compressor to the reforming catalyst bed, for oxidizing the reforming catalyst, and an inert gas stream is passed from the gas compressor through the reforming catalyst bed to purge a substantial portion of the oxygen contained therein for a time sufficient to reduce the oxygen content of an exiting purge gas stream to less than about 2% by volume oxygen.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: February 12, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventor: Lawrence E. Lew
  • Publication number: 20120220449
    Abstract: The process herein provide a catalyst cooler with a vent that communicates fluidizing gas to a lower chamber of a regenerator. Air that is used as fluidizing gas can then be consumed in the regenerator without promoting after burn in the upper chamber.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Daniel N. Myers
  • 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
  • Patent number: 8088705
    Abstract: The invention relates to a process for incorporating sulfur in the porosity of the solid particles of a catalyst for the conversion of hydrocarbons or an adsorbent. This process is carried out off-site in the presence of hydrogen sulfide that is pure or diluted in hydrogen or nitrogen, a process in which said particles are made to rise or fall in a sulfur incorporation zone that comprises at least one vibratory helical coil that is essentially tubular in shape and that comprises at least two turns, whereby said particles are subjected to a temperature profile over the majority of their path in said coil and whereby said particles are brought into contact with at least one fluid on at least one portion of their path.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: January 3, 2012
    Assignee: IFP Energies Nouvelles
    Inventors: Pierre Dufresne, Franck Labruyere, Maxime Meens, Loredana Romano
  • Publication number: 20110284359
    Abstract: Processes for controlling afterburn in a reheater and loss of entrained solid particles in reheater flue gas are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium comprising combustible solid particles. The spent heat transfer medium is introduced into a fluidizing dense bed. The combustible solid particles of the spent heat transfer medium are combusted forming combustion product flue gas in a dilute phase above the fluidizing dense bed. The combustion product flue gas comprises flue gas and solid particles entrained therein. The solid particles are separated from the combustion product flue gas to form separated solid particles. At least a portion of the separated solid particles are returned to the fluidizing dense bed.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 24, 2011
    Applicant: UOP LLC
    Inventors: Paul A. Sechrist, Andrea G. Bozzano
  • Publication number: 20110257005
    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: Application
    Filed: April 16, 2010
    Publication date: October 20, 2011
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventor: Phillip K. Niccum
  • Patent number: 7951740
    Abstract: A method for regenerating desulfurization sorbents that minimizes the in situ formation of one or more silicates. It has been discovered that regenerating sulfur-laden sorbent particles in a carbon oxide-rich environment unexpectedly reduces the in situ silicate formation rate, as compared to similar sorbents regenerated using conventional methods.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: May 31, 2011
    Assignee: China Petroleum & Chemical Corporation
    Inventors: Robert W. Morton, Roland Schmidt, Glenn W. Dodwell, Gregory C. Allred
  • Patent number: 7951739
    Abstract: An improved spent catalyst regenerator which contains sub-troughs branching off from the main trough, distribution troughs which extend outward from the sides of the main trough and the sub-troughs, and downflow tubes extending downward from the bottom of the main trough and sub-troughs.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: May 31, 2011
    Assignee: Stone & Webster Process Technology, Inc.
    Inventors: Chris Santner, Eusebius Gbordzoe, Harvey McQuiston
  • Patent number: 7935314
    Abstract: An apparatus for mixing regenerated and carbonized catalyst involves obstructing upward flow of catalyst by one or more baffles between a catalyst inlet and a feed distributor. Each catalyst stream may be passed to opposite sides of a riser. Baffles obstruct upward flow to effect mixing of regenerated and carbonized catalyst to obtain a more uniform temperature and catalyst mixture before contacting the feed.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: May 3, 2011
    Assignee: UOP LLC
    Inventors: Keith A. Couch, Kelly D. Seibert, Robert L. Mehlberg, Daniel R. Johnson
  • Patent number: 7932204
    Abstract: Systems and methods of improving synthesis gas quality in a fluid catalytic cracking unit are disclosed. In one example, a method comprises reacting a first stage regeneration gas comprising oxygen with spent catalyst from a reactor in a first stage of a regenerator to consume the oxygen in the first stage regeneration gas. This reaction produces a synthesis gas output and partially regenerated catalyst. The method further comprises reacting a second stage regeneration gas comprising oxygen with the partially regenerated catalyst in a second stage of the regenerator to regenerate the partially regenerated catalyst. This reaction produces the first stage regeneration gas for reaction with the spent catalyst in the first stage of the regenerator. Through the first and second stage reactions, the spent catalyst is regenerated and the synthesis gas quality is improved.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: April 26, 2011
    Assignees: UOP LLC, BP Corporation North America Inc.
    Inventor: Gavin P. Towler
  • Patent number: 7915191
    Abstract: This invention is directed to a method and apparatus for regenerating a catalyst used in an FCC unit, including providing a spent catalyst into an upper portion of a regenerator, maintaining a calcination phase, a gasification phase, and a combustion phase of fluidized catalyst in the regenerator, combusting carbon in the combustion phase and producing a combustion flue gas, reacting carbon in the gasification phase with the combustion flue gas to form a carbon monoxide rich flue gas, and calcining the spent catalyst with the carbon monoxide rich flue gas.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 29, 2011
    Assignee: UOP LLC
    Inventor: Brian W. Hedrick
  • Patent number: 7906697
    Abstract: This invention relates to efficiently regenerating catalyst particles by minimizing the formation of localized “hot spots” and “cold spots” in a regeneration zone. Specifically this invention relates to a method for controlling regenerator temperature in an oxygenates-to-olefins system, comprising the steps of: contacting an oxygenate feed in a reactor with a catalytically effective amount of molecular sieve-containing catalyst under conditions effective for converting said oxygenate to a product containing light olefins and forming a coked catalyst; contacting a portion of the coked catalyst in a regenerator, having a catalyst bed height (Hc), an inlet height (Hi), and an outlet height (Ho), with an oxygen-containing regeneration medium under conditions effective to at least partially regenerate the coked catalyst; and conducting a portion of the catalyst from the regenerator to a catalyst cooler to form a cooled catalyst portion, wherein Ho is greater than Hi.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: March 15, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Jr., Chunshe Cao, Michael P. Nicoletti, James R. Lattner, Jesse F. Goellner, Rutton D. Patel, Timothy M. Healy
  • Patent number: 7816294
    Abstract: A catalyst regenerator (100) has a first section (110) and a second section (120) and is operated such that carbon from a carbon-contaminated catalyst (140) is converted to carbon monoxide in the first section (110) and that carbon monoxide is converted to carbon dioxide in the second section (120). The residence time of the oxygen-containing gas in the first and second sections (110, 120) is regulated in preferred configurations by the shape (e.g., diameter) of the first and second sections (110, 120).
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: October 19, 2010
    Assignee: Fluor Technologies Corporation
    Inventor: Humbert Chu
  • Publication number: 20100248942
    Abstract: The object of the present invention is to provide a catalyst regeneration process which can improve catalyst selectivity. A first aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a first fluidized bed regenerator and contacted with an oxygen-containing gas stream and optional steam to carry out a coke combustion reaction, wherein the resultant mixture of the partially regenerated catalyst and flue gas is introduced into a second fluidized bed regenerator and contacted with steam and an optional oxygen-containing gas stream to carry out a further regeneration reaction, and then the regenerated catalyst is introduced into the reactor. A second aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a fluidized dense bed regenerator and contacted with an oxygen-containing gas stream and steam to carry out a coke combustion reaction, and then the regenerated catalyst is introduced into the reactor.
    Type: Application
    Filed: March 30, 2010
    Publication date: September 30, 2010
    Applicants: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Youhao Xu, Shouye Cui, Zhigang Zhang, Weimin Lu
  • Patent number: 7799287
    Abstract: Disclosed is an apparatus and process for disengaging regenerated catalyst from flue gas in a catalyst regenerator so as to avoid re-entrainment of catalyst that has settled into a bed in the catalyst regenerator using a disengaging device. A disengaging arm of the disengaging device has an outer shell that encloses the arm, an inner shell with a slot for allowing catalyst and flue gas to exit the arm and an outer baffle having a lower edge located below the opening in the outer wall. The baffle directs the catalyst and flue gas downwardly and limits radial flow. Catalyst and flue gas enter the disengaging arm through an opening in an outer wall of a riser section at a first superficial velocity and exits through a slot in a bottom of the disengaging arm at no more than 1.33 the first superficial velocity.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 21, 2010
    Assignee: UOP LLC
    Inventors: Brian W. Hedrick, Robert L. Mehlberg, Daniel R. Johnson, Mohammad Reza Mostofi Ashtiani
  • Patent number: 7749762
    Abstract: A method for testing the performance of catalysts used for conversion of FCC regenerator gases comprises subjecting the catalyst simultaneously to a mixture of gases including an oxidizing gas and a reducing gas in more than one cycle in which the ratio of the oxidizing gas to the reducing gas varies over the time of the cycle. Test gases comprising O2, CO, CO2, steam, nitrogen-containing gases and sulfur-containing gases in which the ratio of O2 to CO varies over time for each cycle and in which the products of combustion formed during each cycle can be measured periodically over the cycle yields important data on the usefulness of the catalysts for treatment of regenerator flue gas.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: July 6, 2010
    Assignee: BASF Catalysts LLC
    Inventor: David Matheson Stockwell
  • Patent number: 7745365
    Abstract: An improved spent catalyst regenerator which contains sub-troughs branching off from the main trough, distribution troughs which extend outward from the sides of the main trough and the sub-troughs, and downflow tubes extending downward from the bottom of the main trough and sub-troughs.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: June 29, 2010
    Assignee: Stone & Webster Process Technology, Inc.
    Inventors: Chris Santner, Eusebius Gbordzoe, Harvey McQuiston
  • Publication number: 20100062925
    Abstract: A method for regenerating desulfurization sorbents that minimizes the in situ formation of one or more silicates. It has been discovered that regenerating sulfur-laden sorbent particles in a carbon oxide-rich environment unexpectedly reduces the in situ silicate formation rate, as compared to similar sorbents regenerated using conventional methods.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 11, 2010
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Robert W. Morton, Roland Schmidt, Glenn W. Dodwell, Gregory C. Allred
  • Patent number: 7655589
    Abstract: Disclosed is an improved regeneration process and system for the regeneration of a spent FCC catalyst in a regenerator without vertical partitions by introducing different fluidization gas streams to different regions of a dense phase catalyst zone at the lower end of the regenerator such as a high velocity central region and a low velocity annular zone are formed, positioned below a common dilute catalyst phase.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: February 2, 2010
    Assignee: Shell Oil Company
    Inventors: Ye Mon Chen, David Jon Brosten, Benjamin Karl Bussey
  • Publication number: 20090217649
    Abstract: An exhaust system for a motor vehicle comprises a particulate filter, upstream of which an oxidation catalyst is provided, and a regeneration device for the particulate filter. The regeneration device includes an evaporation unit for introducing a vapour generated from an oxidizable fluid into the exhaust gas stream before the oxidation catalyst. The evaporation unit includes a heating element arranged in a housing and a fluid supply with a controllable fluid pump. A control device controls the fluid pump. This invention furthermore relates to a process for regenerating a particulate filter.
    Type: Application
    Filed: November 30, 2006
    Publication date: September 3, 2009
    Inventors: Kathrin Bremser, Marco Ranalli, Jürgen Klement, Wolfgang Hahnl
  • Patent number: 7582587
    Abstract: The present invention concerns a process for ex situ oxidizing passivation of hydrocarbon hydroconversion catalysts, in particular for hydrotreatment in their sulphurized states, in which the sulphurized catalyst undergoes two treatments: contact with an oxidizing gas stream, and contact with an organic liquid (for example hydrocarbon) which partially fills its pores.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: September 1, 2009
    Assignee: Eurecat S.A.
    Inventors: Pierre Dufresne, Franck Labruyere
  • Publication number: 20090149315
    Abstract: Disclosed is a process for disengaging regenerated catalyst from flue gas in a catalyst regenerator so as to avoid re-entrainment of catalyst that has settled into a bed in the catalyst regenerator using a disengaging device. A disengaging arm of the disengaging device has an outer shell that encloses the arm, an inner shell with a slot for allowing catalyst and flue gas to exit the arm and an outer baffle having a lower edge located below the opening in the outer wall. The baffle directs the catalyst and flue gas downwardly and limits radial flow. Catalyst and flue gas enter the disengaging arm through an opening in an outer wall of a riser section at a first superficial velocity and exits through a slot in a bottom of the disengaging arm at no more than 1.33 the first superficial velocity.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Inventors: Brian W. Hedrick, Robert L. Mehlberg, Daniel R. Johnson, Mohammad Reza Mostofi-Ashtiani
  • Patent number: 7470644
    Abstract: The invention pertains to a process for combusting coke of a coke-containing FCC catalyst in a regeneration unit of a FCC unit having the introduction of oxygen-containing gas through a gas-transport unit into the regeneration unit and combusting the coke by means of an oxygen-containing gas, in which the oxygen-containing gas is cooled in a cooling unit before it is brought in contact with the coke-containing FCC catalyst. The invention further relates to an apparatus for performing said process.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: December 30, 2008
    Assignee: Shell Oil Company
    Inventors: Jacobus Mathias Hendrikus Dirkx, Richard Joseph Higgins, Rene Samson
  • Patent number: 7459595
    Abstract: This invention provides processes for transporting catalyst, preferably in an oxygenate to olefins reaction system. In one embodiment, an oxygenate contacts molecular sieve catalyst particles in a reactor under conditions effective to form an effluent stream comprising light olefins and forming coked catalyst particles. At least a portion of the coked catalyst particles are transported from the reactor or a device associated therewith to a catalyst regenerator through a conduit in a fluidized manner with a fluidizing medium comprising air and steam. At least a portion of the coked catalyst particles are regenerated in the catalyst regenerator to form regenerated catalyst particles, which are ultimately directed back to the reactor.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: December 2, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Jr., James R. Lattner, Richard E. Walter
  • Patent number: 7452838
    Abstract: This invention relates to efficiently regenerating catalyst particles by minimizing the formation of localized “hot spots” and “cold spots” in a regeneration zone. In one embodiment, the invention includes mixing spent catalyst from a reactor and cold catalyst from a catalyst cooler in a mixing zone and directing the mixed catalyst to the regeneration zone in a fluidized manner with a fluidizing medium. In the regeneration zone, the mixed catalyst contacts an oxygen-containing regeneration medium under conditions effective to regenerate the spent catalyst contained therein.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: November 18, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Brian A. Cunningham, Todd R. Steffens, James H. Beech, Jr., Richard E. Walter
  • Publication number: 20080214384
    Abstract: A process for regenerating a catalyst used in the preparation of acrolein from glycerol, which comprises tungsten compounds and has acidic properties and at least one promoter.
    Type: Application
    Filed: January 22, 2008
    Publication date: September 4, 2008
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher, Andreas Dorflein
  • Patent number: 7419929
    Abstract: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase over a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. An aromatic feedstock having a benzene content of at least 90 wt. % is supplied into a reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 50-150 and a cerium-aluminum ratio of 0.5-1.5. Ethylene is supplied to the alkylation reaction zone in an amount to provide a benzene/ethylene mole ratio of 1-15. The reaction zone is operated at temperature and pressure conditions in which benzene is in the super critical phase to cause ethylation of the benzene in the presence of the cerium zeolite beta alkylation catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated by-products of no more than 60 wt. % of the ethylbenzene.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: September 2, 2008
    Assignee: Fina Technology, Inc.
    Inventors: Kevin P Kelly, James R. Butler
  • Patent number: 7217401
    Abstract: A method for reducing the amount of mercury affixed to a sorbent and/or fly ash is disclosed. The method includes the steps of providing an amount of sorbent and/or fly ash wherein at least a portion of the amount of sorbent and/or fly ash has particulates having mercury compounds affixed to the particulates; and exposing the amount of sorbent and/or fly ash to heated flowing air until mercury compounds are liberated from at least some of the particulates. Preferably, the amount of sorbent and/or fly ash is maintained in the heated flowing air until the sorbent reaches a temperature of at least 700° F. (372° C.). When the sorbent is activated carbon, it is preferred that the amount of sorbent and/or fly ash is maintained in the heated flowing air until the activated carbon reaches a temperature in the range of 700° F. (372° C.) to 1000° F. (538° C.).
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: May 15, 2007
    Assignee: Wisconsin Electric Power Company
    Inventors: Bruce W. Ramme, Terry L. Coughlin, Bryna D. Goeckner, Bryan C. Fisher, John J. Noegel
  • Patent number: 7199069
    Abstract: A method for oxidizing carbon adsorbable organic compounds in a controlled manner within a bed of activated carbon. The bed of activated carbon is exposed to a source of molecular oxygen, such as air, and is controlled within a temperature range whereby the molecular oxygen is slowly oxidizing the activated carbon. Under this controlled set of conditions, the activated carbon will oxidize organic compounds present within the bed of activated carbon. This technique has widespread versatility for the controlled destruction of organic vapors and liquids by activated carbon and applications for the regeneration of spent activated carbons containing previously adsorbed organic compounds.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: April 3, 2007
    Inventor: Hugh Stanley McLaughlin
  • Patent number: 7172685
    Abstract: A hydrocarbon desulfurization system employing regenerable solid sorbent particulates in a fluidized bed desulfurization reactor. The sulfur-loaded sorbent particulates are continuously withdrawn from the reactor and transferred to a regenerator. A novel solids transport mechanism provides for the safe and effective transfer of the sulfur-loaded sorbent particulates from the high pressure hydrocarbon environment of the reactor to the low pressure oxygen environment of the regenerator.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: February 6, 2007
    Assignee: Conocophillips Company
    Inventors: Max W. Thompson, Behzad Jazayeri, Robert Zapata, Manuel Hernandez
  • Patent number: 7148171
    Abstract: The present invention provides a method for adding heat to a reactor system used to convert oxygenates to olefin, in which supplemental heat is added with a heating fuel, e.g., a torch oil, having low autoignition temperature, low sulfur, and low nitrogen content.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: December 12, 2006
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: James R. Lattner, Keith H. Kuechler, Richard E. Walter