Treating With Free Oxygen Containing Gas Patents (Class 502/38)
  • Patent number: 9895679
    Abstract: The invention refers to a process for rejuvenating a hydrotreating catalyst comprising a group VIB hydrogenation metal and/or a group VIII hydrogenation metal, which comprises the steps of: (a) regenerating the catalyst by contacting said catalyst with an oxygen containing gas at a temperature from about 300° C. to 550° C. to obtain a regenerated carbon-reduced catalyst, (b) impregnating the regenerated carbon-reduced catalyst with a solution which consists of a mixture of water and citric acid, (c) aging the impregnated catalyst for at least 6 hours and (d) drying the aged catalyst. The invention also refers to the rejuvenated catalyst obtained and its use for hydrotreating hydrocarbon feedstocks.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: February 20, 2018
    Assignee: CATALYST RECOVERY EUROPE S.A.
    Inventors: Guillaume Vincent, James Dallas Seamans
  • Patent number: 9895688
    Abstract: The invention refers to a process for rejuvenating a hydrotreating catalyst comprising a group VIB hydrogenation metal and/or a group VIII hydrogenation metal, which comprises the steps of: (a) regenerating the catalyst by contacting said catalyst with an oxygen containing gas at a temperature from about 300° C. to 550° C., (b) impregnating the regenerated carbon-reduced catalyst with an impregnation solution which comprises a mixture of water and a combination of MoO3 and H3PO4, (c) aging the impregnated catalyst and (d) drying the aged catalyst. The invention also refers to the rejuvenated catalyst obtained and its use for hydrotreating hydrocarbon feedstocks.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: February 20, 2018
    Assignee: CATALYST RECOVERY EUROPE S.A.
    Inventors: Guillaume Vincent, James Dallas Seamans
  • Patent number: 9834496
    Abstract: Increase propane dehydrogenation activity of a partially deactivated dehydrogenation catalyst by heating the partially deactivated catalyst to a temperature of at least 660° C., conditioning the heated catalyst in an oxygen-containing atmosphere and, optionally, stripping molecular oxygen from the conditioned catalyst.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: December 5, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Matthew Pretz, Lin Luo, Susan Domke, Howard W. Clark, Richard A. Pierce, Andrzej M. Malek, Mark W. Stewart, Brien A. Stears, Albert E. Schweizer, Jr., Guido Capone, Duncan P. Coffey, Isa K. Mbaraka
  • Patent number: 9687816
    Abstract: The present invention relates to systems and methods for regenerating ?-cyclodextrin (?-CD) adsorbent after it has been used in a water decontamination process. The regeneration process of the present invention is based on treating ?-CD with ozone gas, i.e., ozonation. In one embodiment, the regeneration process of the present invention comprises the steps of providing a ?-CD adsorbent that has been used in a water decontamination process and removing at least a portion of the contaminants from the ?-CD adsorbent by contacting the contaminants bound to the ?-CD adsorbent with a gas comprising ozone.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: June 27, 2017
    Assignee: Temple University—Of The Commonwealth System of Higher Education
    Inventor: Rominder P. S. Suri
  • Patent number: 9555403
    Abstract: A process for activating a hydroalkylation catalyst in a first state comprising an acid component and a hydrogenating metal component, including: (i) treatment at a temperature of at least 120° C. in the presence of hydrogen for a first duration to produce a catalyst in a second state having a first hydroalkylation activity; (ii) contacting the catalyst in the second state with an aromatic compound and hydrogen under a hydroalkylation condition effective to convert at least part of the aromatic compound to a cycloalkylaromatic compound and produce a catalyst in a third state; and (iii) treating the catalyst in the third state at a temperature of at least 160° C. in the presence of hydrogen but advantageously in the substantial absence of the aromatic compound for a third duration to produce an activated catalyst in a fourth state having a third hydroalkylation activity greater than the first hydroalkylation activity.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: January 31, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gabor Kiss, Tan-Jen Chen, Thomas E. Green
  • Patent number: 9327278
    Abstract: A process is disclosed for an improved catalyst regeneration process to improve catalyst stability and hence increase overall catalyst life. The process includes passing a spent catalyst stream to a first, or upper, combustion zone to partially regenerate the catalyst through controlled combustion of the carbon on the catalyst. The first combustion zone will burn off a high fraction of hydrogen at lower temperatures generating a large fraction of H2O. The partially regenerated catalyst is passed to a second, or lower, combustion zone to burn off the remaining coke at the needed high severity operation. The second combustion zone will burn off the remaining coke at a higher temperature and higher oxygen gas inlet concentration.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 3, 2016
    Assignee: UOP LLC
    Inventors: Pelin Cox, Deng-Yang Jan
  • Patent number: 9068132
    Abstract: A method to reduce metal deposit in the hydroprocessing or upgrade of heavy oil feedstock is provided. The method comprises feeding an improved catalyst feed to the system, with the improved catalyst feed comprising a fresh slurry catalyst and a deoiled spent catalyst, with the deoiled spent catalyst being present in an amount of at least 10% the catalyst feed for the heavy oil upgrade system to have at least a 5% reduction in metal contaminant build-up compared to heavy oil upgrade system without the deoiled spent catalyst in the feed.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: June 30, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Shuwu Yang, Julie Chabot, Bruce Edward Reynolds, Bo Kou
  • Publication number: 20150148214
    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.
    Type: Application
    Filed: October 24, 2014
    Publication date: May 28, 2015
    Inventors: Daniel N. Myers, Paolo Palmas, David N. Myers
  • Patent number: 9029281
    Abstract: A regenerated spent hydroprocessing catalyst treated with a chelating agent and having incorporated therein a polar additive.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 12, 2015
    Assignee: Shell Oil Company
    Inventors: Alexei Grigorievich Gabrielov, Ed Ganja, Salvatore Philip Torrisi
  • Publication number: 20150094201
    Abstract: A process for regenerating a coked catalytic cracking catalyst which the carbon-containing deposits on the catalyst contains at least 1 wt % bio-carbon, based on the total weight of carbon present in the carbon-containing deposits is provided. Such coked catalytic cracking catalyst is contacted with an oxygen containing gas at a temperature of equal to or more than 550° C. in a regenerator to produce a regenerated catalytic cracking catalyst, heat and carbon dioxide.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Inventors: Andries Hendrik JANSSEN, Andries Quirin Maria BOON, John William HARRIS, Nicolaas Wilhelmus Joseph WAY, Colin John SCHAVERIEN, Johan Willem GOSSELINK
  • Patent number: 8969231
    Abstract: A method of producing an alumina-supported cobalt catalyst for use in a Fischer-Tropsch synthesis reaction, which comprises: calcining an initial ?-alumina support material at a temperature to produce a modified alumina support material; impregnating the modified alumina support material with a source of cobalt; calcining the impregnated support material, activating the catalyst with a reducing gas, steam treating the activated catalyst, and activating the steam treated catalyst with a reducing gas.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: March 3, 2015
    Assignee: GTL.FI AG
    Inventors: Erling Rytter, Sigrid Eri, Rune Myrstad, Odd Asbjørn Lindvåg
  • Publication number: 20150057146
    Abstract: A method of operating a continuous or semi-continuous system for a catalyst regeneration process. The system comprises a regenerator, the regenerator comprising a combustion zone and a halogenation zone. The catalyst is fed into the regenerator. A circulating regeneration gas is introduced into a regenerator circuit including oxygen, the circulating regeneration gas having a nitrogen concentration that is less than air. Oxygen from the circulating regeneration gas reacts with the coke to provide water and carbon dioxide. Water and the carbon dioxide formed in this first reaction then further react with the coke to form carbon monoxide and hydrogen.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Applicant: UOP LLC
    Inventors: Bryan J. Egolf, Feng Xu, Raelynn M. Miller
  • Patent number: 8946106
    Abstract: Process for the regeneration of an at least partially coked molecular sieve catalyst comprising introducing the at least partially coked catalyst into a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate at least part of the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; recovering part of the at least partially regenerated catalyst; analysing the at least partially regenerated catalyst to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting one or more conditions of the regeneration of the at least partially coked catalyst on the basis of the analysis of the at least partially regenerated catalyst; and separating at least partially regenerated catalyst and at least part of the gaseous mixture as obtained in step (b).
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: February 3, 2015
    Assignee: Shell Oil Company
    Inventors: Jose Atilio Quevedo Enriquez, Leslie Andrew Chewter, Jeroen Van Westrenen
  • Patent number: 8921252
    Abstract: A process for the regeneration of deactivated catalyst from a Fischer-Tropsch synthesis reactor, the catalyst being a supported cobalt catalyst. The process comprises the following steps: a withdrawal step, in which a portion of deactivated catalyst together with liquid hydrocarbon is withdrawn from the reactor; a concentration step, in which the concentration of the catalyst in the liquid hydrocarbon is increased; a calcination step, in which the deactivated catalyst composition is subjected to an oxidizing gas to oxidize carbonaceous material contained in the deactivated catalyst in to gaseous oxides of the components of the carbonaceous material; and a reactivation step, in which the deactivated catalyst composition is reactivated to produced a regenerated catalyst.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: December 30, 2014
    Assignee: GTLFI AG
    Inventors: Erling Rytter, Sigrid Eri, Torild Hulsund Skagseth, Oyvind Borg
  • Patent number: 8916490
    Abstract: Process for the regeneration of an at least partially coked molecular sieve catalyst comprising introducing the at least partially coked catalyst into a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate at least part of the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; separating at least partially regenerated catalyst and at least part of the gaseous mixture; and analyzing the composition of the gaseous mixture to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting the mass flow rate of the oxygen-containing gas on the basis of the analysis of the gaseous mixture.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 23, 2014
    Assignee: Shell Oil Company
    Inventors: Leslie Andrew Chewter, Jose Atilio Quevedo Enriquez
  • Patent number: 8907135
    Abstract: The present disclosure relates to facilities, systems, methods and/or catalysts for use in chemical production. In particular, the disclosure provides innovations relating to dehydration of multihydric compounds such as glycerol to form acrolein. Some of these innovations include continuous reaction systems as well as system parameters that allow for long term production.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: December 9, 2014
    Assignee: Battelle Memorial Institute
    Inventors: James J. Strohm, Alan H. Zacher, James F. White, Michel J. Gray, Vanessa Lebarbier
  • Publication number: 20140357919
    Abstract: The present invention relates to a process for the oxidative regeneration of a deactivated catalyst comprising molecular sieve to provide a regenerated molecular sieve catalyst, wherein said deactivated catalyst is from one or both of an oxygenate to olefin process and a olefin cracking process, said regeneration process comprising at least the steps of providing a regeneration gas stream comprising oxidant; treating the regeneration gas stream with a liquid adsorbent stream comprising an ethylene glycol in a contaminant absorption zone to remove at least a part of one or more of any water, any alkali metal ion and any alkaline earth metal ion present in the regeneration gas stream to provide a treated regeneration gas stream comprising oxidant; regenerating a deactivated catalyst comprising molecular sieve with the treated regeneration gas stream to provide a regenerated catalyst comprising regenerated molecular sieve.
    Type: Application
    Filed: November 28, 2012
    Publication date: December 4, 2014
    Inventors: Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
  • Patent number: 8901024
    Abstract: Ozone treated carbon electrodes can provide increased catalytic activity, such as in a dye-sensitized solar cell (DSSC) or other electrochemical device or other device that could benefit from an increased catalytic activity, such as lithium ion or other batteries, hydrogen fuel cells, or electroanalytical instruments. Devices, methods of making, and methods of using are discussed.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: December 2, 2014
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Jessika E. Trancik, James C. Hone
  • Patent number: 8895464
    Abstract: A process for a continuous regeneration of a catalyst wherein the regeneration section includes at least two separate zones. The regeneration includes an upper combustion zone, and an lower combustion zone, where the process utilizes at least two independent regeneration gas loops for control of the amount of oxygen to regenerate the catalyst. The upper combustion zone can be divided into multiple zones, and the combustion zone can be divided into multiple zones.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: November 25, 2014
    Assignee: UOP LLC
    Inventors: Bryan J. Egolf, Laura E. Leonard, Michael Caracotsios
  • Patent number: 8889579
    Abstract: A process is presented for the management of sulfur on a catalyst. The catalyst is a dehydrogenation catalyst, and sulfur accumulates during the dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst is cooled before the regeneration process. The process includes controlling the amount of sulfur that needs to be removed from the catalyst before regeneration.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: November 18, 2014
    Assignee: UOP LLC
    Inventors: Laura E. Leonard, Gregory J. Gajda, Steven C. Kozup
  • 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: 8865608
    Abstract: Systems and processes for regenerating catalyst are provided herein that include a catalyst regeneration tower having a cooling zone that receives a catalyst cooling stream generated by a cooling gas loop. The systems and processes include a first thermocompressor that utilizes a first motive vapor and a second thermocompressor that utilizes a second motive vapor in order to provide the catalyst cooling stream to the regeneration tower. The second thermocompressor operates in parallel with the first thermocompressor. The first thermocompressor can utilize combustion air as the motive vapor. The second thermocompressor can utilize nitrogen as the motive vapor.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 21, 2014
    Assignee: UOP LLC
    Inventors: Brian Nabozny, William D. Schlueter, Kate Tuson
  • 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: 8815761
    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: Grant
    Filed: May 18, 2012
    Date of Patent: August 26, 2014
    Assignee: UOP LLC
    Inventor: Charles L. Hemler, Jr.
  • 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: 8795514
    Abstract: The present invention relates to a regenerated hydrotreatment catalyst regenerated from a hydrotreatment catalyst for treating a petroleum fraction, the hydrotreatment catalyst being prepared by supporting molybdenum and at least one species selected from metals of Groups 8 to 10 of the Periodic Table on an inorganic carrier containing an aluminum oxide, wherein a residual carbon content is in the range of 0.15 mass % to 3.0 mass %, a peak intensity of a molybdenum composite metal oxide with respect to an intensity of a base peak is in the range of 0.60 to 1.10 in an X-Ray diffraction spectrum, and a peak intensity of a Mo—S bond derived from a residual sulfur peak with respect to an intensity of a base peak is in the range of 0.10 to 0.60 in a radial distribution curve obtained from an extended X-ray absorption fine structure spectrum of an X-ray absorption fine structure analysis.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 5, 2014
    Assignees: JX Nippon Oil & Energy Corporation, Japan Petroleum Energy Center
    Inventors: Nobuharu Kimura, Yoshimu Iwanami, Wataru Sahara, Souichirou Konno
  • 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: 8778823
    Abstract: The process involves the use of specifically selected coke precursor compounds from the front end of oil distillate fractions that contain C11 to C14 hydrocarbons and their use as additives in the processing of naphtha in a catalytic reformer. The C11 to C14 compounds additives enhance coke make in continuous catalytic regeneration (CCR) reformers to levels higher than those which are usually produced in low coke naphtha reforming operations. With the increase of ethanol blending in gasoline and low reformate octane severity operations, reformers do not produce the necessary amount of coke to permit sustaining steady state white burn operations.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 15, 2014
    Assignee: Marathon Petroleum Company LP
    Inventors: Soni O. Oyekan, Kenneth D. Rhodes, Nicholas K. Newlon
  • Patent number: 8772191
    Abstract: The invention provides a process for the off site regeneration of a solid catalyst, comprising two consecutive steps: a first step of washing the catalyst using one or more fluid(s) in the supercritical state, so as to extract from the catalyst at least a portion of the hydrocarbons present at the surface of the latter, followed by a second step of combustion of at least a portion of the coke present at the surface of the said catalyst by a heat treatment of the latter in the presence of oxygen and at a temperature ranging from 300° C. to 600° C.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: July 8, 2014
    Assignee: Eurecat S.A.
    Inventors: Philippe Kerleau, Pierre Dufresne
  • Publication number: 20140155255
    Abstract: The invention relates to a process for the regeneration of a copper-, zinc- and zirconium oxide-comprising adsorption composition after use thereof for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin, in which the adsorption composition is heated to a temperature in the range from 160 to 400° C. and a regeneration gas is passed through the adsorption composition, wherein the regeneration gas comprises 1000 to 3000 ppm of oxygen in an inert carrier gas.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 5, 2014
    Applicant: BASF SE
    Inventors: Guido Henze, Lothar Karrer, Heiko Urtel, Stephan Hatscher
  • Patent number: 8729140
    Abstract: A process for regenerating one or more deactivated cobalt comprising Fischer-Tropsch catalyst particle(s), comprising the steps of: (i) oxidizing the catalyst particle(s) at a temperature between 20 and 400° C.; (ii) treating the catalyst particle(s) for more than 5 minutes, (iii) drying the catalyst particle(s); and (iv) optionally reducing the catalyst particle(s) with hydrogen or a hydrogen comprising gas. This process may be preceded by a step in which Fischer-Tropsch product is removed from the catalyst particle(s). The treatment is performed using carbon dioxide and a liquid comprising ammonia.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 20, 2014
    Assignee: Shell Oil Company
    Inventors: Gerrit Leendert Bezemer, Stephen Nkrumah, Johannes Theodorus Maria Smits
  • Patent number: 8716161
    Abstract: Methods for treating or rejuvenating a spent catalyst are disclosed. Such methods can employ a step of halogenating the spent catalyst, followed by decoking the halogenated spent catalyst.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: May 6, 2014
    Assignee: Chevron Phillips Chemical Company
    Inventor: An-Hsiang Wu
  • 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: 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: 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: 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: 20130260984
    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: Application
    Filed: May 22, 2013
    Publication date: October 3, 2013
    Inventors: Paolo Palmas, Daniel R. Johnson
  • Publication number: 20130253227
    Abstract: The present disclosure relates to facilities, systems, methods and/or catalysts for use in chemical production. In particular, the disclosure provides innovations relating to dehydration of multihydric compounds such as glycerol to form acrolein. Some of these innovations include continuous reaction systems as well as system parameters that allow for long term production.
    Type: Application
    Filed: May 10, 2013
    Publication date: September 26, 2013
    Applicant: Battelle Momerial Institute
    Inventors: James J. Strohm, Alan H. Zacher, James F. White, Michel J. Gray, Vanessa Lebarbier
  • Patent number: 8530703
    Abstract: The present disclosure relates to facilities, systems, methods and/or catalysts for use in chemical production. In particular, the disclosure provides innovations relating to dehydration of multihydric compounds such as glycerol to form acrolein. Some of these innovations include continuous reaction systems as well as system parameters that allow for long term production.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 10, 2013
    Assignee: Battelle Memorial Institute
    Inventors: James J. Strohm, Alan H. Zacher, James F. White, Michel J. Gray, Vanessa Lebarbier
  • Patent number: 8513149
    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: August 20, 2013
    Assignee: UOP LLC
    Inventors: David N. Myers, Daniel N. Myers, Paolo Palmas, Laura E. Leonard, Wolfgang A. Spieker
  • Publication number: 20130210939
    Abstract: A process for the regeneration of deactivated catalyst from a Fischer-Tropsch synthesis reactor, the catalyst being a supported cobalt catalyst. The process comprises the following steps: a withdrawal step, in which a portion of deactivated catalyst together with liquid hydrocarbon is withdrawn from the reactor; a concentration step, in which the concentration of the catalyst in the liquid hydrocarbon is increased; a calcination step, in which the deactivated catalyst composition is subjected to an oxidising gas to oxidise carbonaceous material contained in the deactivated catalyst in to gaseous oxides of the components of the carbonaceous material; and a reactivation step, in which the deactivated catalyst composition is reactivated to produced a regenerated catalyst.
    Type: Application
    Filed: August 17, 2011
    Publication date: August 15, 2013
    Applicant: GTL.F1 AG
    Inventors: Erling Rytter, Sigrid Eri, Torild Hulsund Skagseth, Oyvind Borg
  • Patent number: 8470725
    Abstract: A process for regenerating one or more deactivated cobalt comprising Fischer-Tropsch catalyst particle(s), comprising the steps of: (i) oxidizing the catalyst particle(s) at a temperature between 20 and 400° C.; (ii) treating the catalyst particle(s) for more than 5 minutes with a solvent, which solvent comprises an amine, (iii) drying the catalyst particle(s); and (iv) optionally reducing the catalyst particle(s) with hydrogen or a hydrogen comprising gas. This process may be preceded by a step in which Fischer-Tropsch product is removed from the catalyst particle(s).
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: June 25, 2013
    Assignee: Shell Oil Company
    Inventors: Gerrit Leendert Bezemer, Stephen Nkrumah
  • 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: 8377839
    Abstract: The present invention provides a process for the regeneration of a catalyst comprising at least one metal from Group VIII and at least one metal from Group VIB which are deposited on a refractory oxide support, comprising: at least one first step of heat treatment of the catalyst in the presence of oxygen and at a temperature ranging from 350° C. to 550° C.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: February 19, 2013
    Assignee: Eurecat S.A.
    Inventors: Pauline Galliou, Eric Nagy, Pierre Dufresne
  • Patent number: 8372771
    Abstract: A system and method for activating chromium catalyst, including: increasing temperature of a chromium catalyst at a first rate for a first period of time to a first temperature; and increasing temperature of the chromium catalyst at a second rate for a second period of time from the first temperature to a second temperature, wherein the first rate is greater than the second rate, and wherein the first period precedes the second period.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: February 12, 2013
    Assignee: Chevrton Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • 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
  • Patent number: 8349753
    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 23, 2011
    Date of Patent: January 8, 2013
    Assignee: Stone & Webster Process Technology, Inc.
    Inventors: Chris Santner, Eusebius Gbordzoe, Harvey McQuiston