With Recovery Or Reactivation Of Catalyst Patents (Class 208/140)
  • Patent number: 10799858
    Abstract: A process is presented for the treatment of spent catalyst to manage sulfur-containing compounds on the catalyst. The catalyst may be a dehydrogenation catalyst, where sulfur accumulates during a dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst may be cooled before a regeneration step. The process includes controlling removal of sulfur compounds from the spent catalyst before regeneration.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 13, 2020
    Assignee: UOP LLC
    Inventors: Wolfgang A. Spieker, Gregory J. Gajda, J. W. Adriaan Sachtler, Kristoffer E. Popp
  • Patent number: 10309278
    Abstract: Described herein is a desulfurization method for desulfurizing a SCR device treating an exhaust gas. The desulfurization method includes injecting a reductant into the exhaust gas upstream from or into the SCR device and increasing a temperature of the exhaust gas.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 4, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Rahul Mital, Gongshin Qi, Anil Yadav
  • Patent number: 10307740
    Abstract: Methods for regenerating a spent catalyst are disclosed. Such methods may employ a step of chlorinating the spent catalyst in the gas phase, followed by decoking the chlorinated spent catalyst, and then fluorinating the de-coked catalyst in a fluorine-containing solution of a fluorine-containing compound.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: June 4, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Ryan W. Snell, Gabriela D. Alvez-Manoli
  • Patent number: 10300476
    Abstract: Methods for regenerating a spent catalyst in a metal reactor are disclosed. Such methods may employ a step of chlorinating the spent catalyst, followed by decoking the chlorinated spent catalyst, and then fluorinating the de-coked catalyst.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: May 28, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Gabriela D. Alvez-Manoli
  • Patent number: 10144680
    Abstract: Disclosed is a process for producing light olefins. In the process for producing light olefins by continuously bringing an alkane feedstock and a catalyst into contact to subject to a dehydrogenation reaction, the reaction pressure P of the dehydrogenation reaction is made 0.6-2 MPa and the volume space velocity H of the dehydrogenation reaction is made 500-1000 h?1. The light olefins production process of the present invention is simple and continuous in operation and has the characteristics of low investment, significant increase in yield of light olefins and high safety.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 4, 2018
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Xin Wang, Jingchuan Yu, Minggang Li, Jianhong Gong, Baoning Zong, Youhao Xu
  • Patent number: 10022692
    Abstract: A Fischer-Tropsch catalyst activation system including separation apparatus configured for separating a product gas comprising primarily hydrogen from a gas stream comprising hydrogen, an activation reactor fluidly connected with the separation apparatus via an activation gas inlet line whereby the product gas may be introduced into the activation reactor, and a circulation loop fluidly connecting a gas outlet of the activation reactor with the activation gas inlet line or with another gas inlet of the activation reactor and fluidly connecting the activation reactor with one or more apparatus configured for removal of H2O. A method of activating a Fischer-Tropsch catalyst is also provided.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: July 17, 2018
    Assignee: SGCE LLC
    Inventor: Juan R. Inga
  • Patent number: 9868111
    Abstract: A process of forming a direct NOx catalyst includes the steps of providing a palladium salt, providing a silicon oxide support material, mixing the palladium salt and silicon oxide support material in an aqueous solution, evaporating the aqueous solution forming a solid, calcining the solid, and then exposing the calcined solid to a pretreatment gas at a specified temperature to form a desired direct NOx catalyst. When the process includes exposing the calcined solid to helium gas at a temperature of from 650 to 1000° C. the catalyst may include a mixture of palladium and palladium oxide having a particle size of from 5 to 150 nm where the palladium particles are discrete particles without sintering and the mixture may include 41% by weight palladium oxide and 51% by weight palladium metal.
    Type: Grant
    Filed: February 27, 2016
    Date of Patent: January 16, 2018
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Krishna Reddy Gunugunuri, Torin C. Peck, Chen Ling, Hongfei Jia
  • Patent number: 9751823
    Abstract: Processes are described for making methacrylic acid via methacrolein from a biobased isobutene, wherein the biobased isobutene is prepared from ethanol or from acetic acid in the presence of a ZnxZryOz mixed oxide catalyst, the biobased isobutene is oxidized to methacrolein and the methacrolein is further oxidized to methacrylic acid.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: September 5, 2017
    Assignees: Archer Daniels midland Co., Washington state University
    Inventors: Junming Sun, Changjun Liu, Yong Wang, Kevin Martin, Padmesh Venkitasubramanian
  • Patent number: 9731287
    Abstract: Apparatuses and methods are provided for regenerating catalyst particles. In one embodiment, a method for regenerating catalyst particles includes passing the catalyst particles through a halogenation zone and a drying zone. The method feeds drying gas to the drying zone and passes a first portion of the drying gas from the drying zone to the halogenation zone. The method includes removing a second portion of the drying gas from the drying zone and injecting a halogen gas into the second portion of the drying gas. Further, the method includes delivering the halogen gas and the second portion of the drying gas to the halogenation zone. In the method, substantially all of the drying gas fed to the drying zone enters the halogenation zone.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: August 15, 2017
    Assignee: UOP LLC
    Inventors: Ka Lok, Jennifer J Ozmen, William Yanez, Mary Wier, Richard Gaicki
  • Patent number: 9403749
    Abstract: Processes are described for making methacrylic acid via methacrolein from a biobased isobutene, wherein the biobased isobutene is prepared from ethanol or from acetic acid in the presence of a ZnxZryOz mixed oxide catalyst, the biobased isobutene is oxidized to methacrolein and the methacrolein is further oxidized to methacrylic acid.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 2, 2016
    Inventors: Junming Sun, Changjun Liu, Yong Wang, Kevin Martin, Padmesh Venkitasubramanian
  • Patent number: 9309466
    Abstract: A method to upgrade oil wherein an oil containing material is heated with a catalyst in a turbulent environment of less than about 1 volume percent oxygen to produce a vapor phase comprising an upgraded oil. Also disclosed is a thermal desorption process in which an oil contaminated substrate is contacted with an acidic reagent to form a peptizate, and the peptizate is mixed with a combustion effluent gas under turbulent conditions at a temperature above 200° C. to form the catalyst for the oil upgrading method.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: April 12, 2016
    Assignee: Racional Energy & Environmental Company
    Inventor: Ramon Perez-Cordova
  • Patent number: 9150971
    Abstract: An aerobic method for oxidizing an alkane is disclosed herein. At least a portion of a surface of a platinum working electrode is activated at an interface between the platinum working electrode and an ionic liquid electrolyte (i.e., 1-ethyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-propyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-pentyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-hexyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-heptyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-octyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, 1-nonyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, and 1-decyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imidem, and combinations thereof). An interface complex is formed at the interface. An alkane gas is supplied to the interface. The alkane adsorbs at or near the interface complex.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: October 6, 2015
    Assignee: Oakland University
    Inventors: Xiangqun Zeng, Zhe Wang
  • Patent number: 8912110
    Abstract: One embodiment is a catalyst for catalytic reforming of naphtha. The catalyst can have a noble metal including one or more of platinum, palladium, rhodium, ruthenium, osmium, and iridium, an alkali or alkaline-earth metal, a lanthanide-series metal, and a support. Generally, an average bulk density of the catalyst is about 0.300 to about 1.00 gram per cubic centimeter. The catalyst has a platinum content of less than about 0.375 wt %, a tin content of about 0.1 to about 2 wt %, a potassium content of about 100 to about 600 wppm, and a cerium content of about 0.1 to about 1 wt %. The lanthanide-series metal can be distributed at a concentration of the lanthanide-series metal in a 100 micron surface layer of the catalyst less than two times a concentration of the lanthanide-series metal at a central core of the catalyst.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 16, 2014
    Assignee: UOP LLC
    Inventors: Manuela Serban, Mark P. Lapinski
  • Patent number: 8882992
    Abstract: The present invention relates to a multistage reforming process to produce a high octane product. A naphtha boiling range feedstock is processed in a multi-stage reforming process, in which the process involves at least 1) a penultimate stage for reforming the naphtha feedstock to produce a penultimate effluent 2) a final stage for further reforming at least a portion of the penultimate effluent 3) a regeneration step for the final stage catalyst. The severity of the penultimate stage can be increased during final stage catalyst regeneration in order to maintain the target RON of the reformate product and avoid reactor downtime.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: November 11, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cong-Yan Chen, Stephen J. Miller, James N. Ziemer
  • 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: 8758599
    Abstract: One exemplary embodiment can be a catalyst for catalytic reforming of naphtha. The catalyst can have a noble metal including one or more of platinum, palladium, rhodium, ruthenium, osmium, and iridium, a lanthanide-series metal including one or more elements of atomic numbers 57-71 of the periodic table, and a support. Generally, an average bulk density of the catalyst is about 0.300-about 0.620 gram per cubic centimeter, and an atomic ratio of the lanthanide-series metal:noble metal is less than about 1.3:1. Moreover, the lanthanide-series metal can be distributed at a concentration of the lanthanide-series metal in a 100 micron surface layer of the catalyst less than about two times a concentration of the lanthanide-series metal at a central core of the catalyst.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: June 24, 2014
    Assignee: UOP LLC
    Inventors: Mark Paul Lapinski, Paul Barger
  • Patent number: 8658021
    Abstract: The present invention relates to a multistage reforming process to produce a high octane product. A naphtha boiling range feedstock is processed in a multi-stage reforming process, in which the process involves at least 1) a penultimate stage for reforming the naphtha feedstock to produce a penultimate effluent 2) a final stage for further reforming at least a portion of the penultimate effluent 3) a regeneration step for the final stage catalyst. The severity of the penultimate stage can be increased during final stage catalyst regeneration in order to maintain the target RON of the reformate product and avoid reactor downtime.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: February 25, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cong-Yan Chen, Stephen J. Miller, James N. Ziemer, Ann J. Liang
  • Patent number: 8604262
    Abstract: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: December 10, 2013
    Assignee: UOP LLC
    Inventors: David A. Wegerer, Kurt M. Vanden Bussche, Mark D. Moser
  • Patent number: 8404105
    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: Grant
    Filed: February 11, 2011
    Date of Patent: March 26, 2013
    Assignee: UOP LLC
    Inventors: Mark P. Lapinski, Gregory J. Gajda, Jeffry T. Donner, Richard R. Rosin, Marc R. Scheier, Simon R. Bare
  • 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: 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: 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: 7947166
    Abstract: The present invention relates to a method for treating a feed corresponding to a pyrolysis gasoline, comprising: a) at least one stage of selective hydrogenation of the feed, referred to as HD1, b) fractionating in one or more distillation columns the effluent from stage a) in order to produce at least one light C5 cut, an intermediate C6 or C6-C7 or C6-C8 cut intended for aromatics production, a heavy C7+ or C8+ or C9+ cut intended for gasoline production, c) at least one stage of hydrodesulfurization and deep hydrogenation of the intermediate cut, referred to as HD2, d) at least one stage of alkylation of the heavy C7+, C8+ or C9+ cut consisting of a treatment on an acid catalyst allowing weighting of the sulfur compounds, e) at least one stage of distillation of the effluent from stage d), intended to produce a light fraction that can be directly used as a low-sulfur gasoline base, and a heavy C11+ or C12+ fraction rich in sulfur compounds, used as middle distillate or fuel oil.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: May 24, 2011
    Assignee: IFP Energies Nouvelles
    Inventors: Florent Picard, Quentin Debuisschert, Annick Pucci
  • Patent number: 7909988
    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: Grant
    Filed: April 17, 2008
    Date of Patent: March 22, 2011
    Assignee: UOP LLC
    Inventors: Mark P. Lapinski, Gregory J. Gajda, Jeffry T. Donner, Richard R. Rosin, Marc R. Schreier, Simon R. Bare
  • Patent number: 7585803
    Abstract: A method of operating a continuous system for a catalyst regeneration process wherein the regeneration section includes a combustion zone, at least one oxygen boost zone, a halogenation zone and a drying zone in serial progression.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: September 8, 2009
    Assignee: UOP LLC
    Inventors: Scott J. Price, Paul R. Cottrell
  • Patent number: 7223710
    Abstract: A process in which halogen is recovered from a cyclic operation for regenerating hydrocarbon conversion catalysts is disclosed. The process uses an arrangement of beds of adsorbent and a circulating stream to return the halogen-containing materials to a regeneration circuit.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 29, 2007
    Assignee: UOP LLC
    Inventor: Paul A. Sechrist
  • Patent number: 6790802
    Abstract: A method of recovering halogen-containing materials from the cyclic catalyst regeneration operation of a catalytic hydrocarbon conversion process is disclosed. The method uses an arrangement of beds of adsorbent to return the halogen-containing materials to a circulating regeneration circuit.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 14, 2004
    Assignee: UOP LLC
    Inventor: Paul A. Sechrist
  • Patent number: 6784132
    Abstract: A method of recovering halogen-containing materials from the cyclic catalyst regeneration operation of a catalytic hydrocarbon conversion process is disclosed. The method uses an arrangement of beds of adsorbent to maintain the halogen-containing materials within a circulating regeneration circuit.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: August 31, 2004
    Assignee: UOP LLC
    Inventor: Paul A. Sechrist
  • Patent number: 6616900
    Abstract: An FCC process provides ultrashort catalyst and feed contacting in an FCC riser by recovering a short contact product stream in an intermediate section of the riser. The remainder of the catalyst and gas mixture continues through the riser along a continuous flow path for further controlled cracking of the heavier adsorbed hydrocarbons and entrained hydrocarbons. Residual catalyst separated from the recovery of the short contact product stream returns to the upstream end of the riser for recycle. The section of the riser downstream of the short contact product recovery may receive additional feed to perform secondary cracking reactions. The riser arrangement greatly simplifies methods for performing ultrashort FCC feed and catalyst contacting.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: September 9, 2003
    Assignee: UOP LLC
    Inventor: David A. Lomas
  • Patent number: 6610196
    Abstract: A substantially water-free hydrocarbon feed is charged to a reformer reactor operated under reforming conditions; thereafter, a chlorine-containing additive is introduced, without the simultaneous introduction of water, into the substantially water-free hydrocarbon feed being charged to the reformer reactor in an amount and for a time period that are effective to inhibit deactivation of the reformer catalyst; thereafter, the introduction of the chlorine-containing additive is terminated and the charging of the substantially water-free hydrocarbon feed to the reformer reactor is continued.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: August 26, 2003
    Assignee: ConocoPhillips Company
    Inventors: Fan-Nan Lin, John S. Parsons
  • Patent number: 6593264
    Abstract: A reforming catalyst containing a Group VIII metal, or a Group VII B metal, or tin, or germanium, or copper, or selenium or combinations of any two or more metals or oxides thereof is activated by: a) continuously flowing a reducing gas over the catalyst for contact with the catalyst; (b) during step a), flowing a halogen-containing compound over the catalyst for contact with the catalyst for a first time period, wherein the first time period is greater than about 1 minute, and wherein the first time period is less than about 60 minutes; and (c) following step b), and during step a), substantially discontinuing the flow of the halogen-containing compound over the catalyst for a second time period, wherein the second time period is greater than about 1 minute.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: July 15, 2003
    Assignee: ConocoPhillips Company
    Inventors: Fan-Nan Lin, John S. Parsons, Donald H. Macahan, Brian H. Limoges
  • Patent number: 6558532
    Abstract: While a substantially water-free hydrocarbon feed is being charged to a catalytic reformer reactor, an organic chloride is contacted with the reformer catalyst in an amount and for a time period that are effective to restore at least a portion of the activity of the reformer catalyst.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: May 6, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Fan-Nan Lin, John S. Parsons
  • Patent number: 6478952
    Abstract: Deactivation of a reformer catalyst is inhibited by charging a hydrocarbon feed having a concentration of an organic aluminum halide compound to a reformer reactor operating under reforming conditions and containing a reformer catalyst.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: November 12, 2002
    Assignee: Phillips Petroleum Company
    Inventor: Fan-Nan Lin
  • Patent number: 6472340
    Abstract: Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with hydrogen while introducing a nonmetallic chlorine-containing compound into a reactor of the multiple reactor system in an amount to add from about 0.05 to about 0.3 weight percent chlorine to the catalyst and thereafter purging the system with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of catalyst resulting in a reforming system having increased activity and providing enhanced RON values with reduced cracking of feedstock.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 29, 2002
    Assignee: Phillips Petroleum Company
    Inventor: Fan-Nan Lin
  • Patent number: 6458266
    Abstract: A substantially water-free hydrocarbon feed is charged to a multiple-reactor reformer system being operated under reforming conditions and comprising at least two reformer reactors serially connected in fluid-flow communication and each containing a reformer catalyst; and, simultaneously with the charging step, a chloriding agent is sequentially introduced, without simultaneously introducing water, immediately upstream from the inlets of all the reformer reactors in an amount and for a period of time that are effective to inhibit the deactivation of the reformer catalyst.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: October 1, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Fan-Nan Lin, John S. Parsons
  • Publication number: 20020100712
    Abstract: Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with a sustained hydrogen flow through the multiple reactor system while introducing a nonmetallic chlorine-containing compound serially into each reactor of the multiple reactor system in an amount to provide from about 0.05 to about 0.3 weight percent chlorine on the catalyst and thereafter purging the system with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of catalyst prior to commencing use of the treated catalyst system for reforming hydrocarbon feed.
    Type: Application
    Filed: July 31, 2001
    Publication date: August 1, 2002
    Applicant: Phillips Petroleum Company
    Inventors: Donald H. Macahan, Fan-Nan Lin
  • Patent number: 6348144
    Abstract: A method for regenerating a hydrocarbon conversion catalyst wherein at least a portion of a halogen-containing compound is precombusted in a precombustion zone, and the catalyst is regenerated in the presence of the halogen. By precombusting the halogen-containing compound in a precombustion zone rather than in the regeneration zone, this invention decreases the risk of permanent catalyst deactivation and of costly equipment damage in the regeneration zone. This method is adaptable to many processes for the catalyst conversion of hydrocarbons in which deactivated catalyst particles are regenerated in a moving bed.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: February 19, 2002
    Assignee: UOP LLC
    Inventor: Thomas J. Gevelinger
  • Publication number: 20020002111
    Abstract: Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with hydrogen while introducing a nonmetallic chlorine-containing compound into a reactor of the multiple reactor system in an amount to provide from about 0.05 to about 0.3 weight percent chlorine on the catalyst and thereafter purging the system with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of catalyst resulting in a reforming system having increased activity and providing enhanced RON values with reduced cracking of feedstock.
    Type: Application
    Filed: July 31, 2001
    Publication date: January 3, 2002
    Applicant: Phillips Petroleum Company
    Inventor: Fan-Nan Lin
  • Publication number: 20010054573
    Abstract: Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with a sustained hydrogen flow through the multiple reactor system while introducing a nonmetallic chlorine-containing compound serially into each reactor of the multiple reactor system in an amount to provide from about 0.05 to about 0.3 weight percent chlorine on the catalyst and thereafter purging the system with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of catalyst prior to commencing use of the treated catalyst system for reforming hydrocarbon feed.
    Type: Application
    Filed: July 31, 2001
    Publication date: December 27, 2001
    Applicant: Phillips Petroleum Company
    Inventors: Donald H. Macahan, Fan-Nan Lin
  • Patent number: 6290916
    Abstract: A method and apparatus are disclosed for removing water from a recycle gas stream in a catalyst regeneration process. A recycle gas stream contacts catalyst and the catalyst sorbs water from the recycle gas. Some of the now-dried recycle gas recirculates to the regeneration process, thereby decreasing the water content in the regeneration process. The catalyst containing sorbed water passes to a desorption zone, where water is desorbed from the catalyst and the desorbed water is rejected from the process. This method and apparatus are useful for extending the life of catalyst in catalytic hydrocarbon processes that employ continuous or semi-continuos catalyst regeneration zones.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: September 18, 2001
    Assignee: UOP LLC
    Inventors: Paul A. Sechrist, Delmar W. Robinson, William D. Schlueter
  • Patent number: 6165352
    Abstract: A continuous process for the dehydrogenation of a hydrocarbon and/or oxygenated hydrocarbon feed, comprising contacting the hydrocarbon and/or oxygenated hydrocarbon feed with a dehydrogenation catalyst at elevated temperature in a reaction zone characterised in that the catalyst is capable of retaining hydrogen and (a) is contacted with a feed to form a dehydrogenated product and hydrogen, at least some of the hydrogen formed being adsorbed by the catalyst and/or reacting therewith to reduce at least part of the catalyst; (b) the dehydrogenated product and any unadsorbed/unreacted hydrogen is removed from the reaction zone; (c) at least some of the adsorbed hydrogen is removed from the catalyst and/or at least some of the reduced catalyst is oxidised; and (d) reusing the catalyst from step (c) in step (a).
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: December 26, 2000
    Assignee: BP Chemicals Limited
    Inventors: Jeremy Bernard Cooper, Jonathon Charles Frost, Stephen Roy Partington
  • Patent number: 6153089
    Abstract: A process for converting undesirable olefinic hydrocarbon streams to hydrogen and petrochemical feedstock e.g. light olefins in C.sub.2 -C.sub.4 range and aromatics especially toluene and xylenes, which comprises simultaneous cracking and reforming at olefin rich hydrocarbons using a catalyst consisting of dehydrogenating metal components, shape selective zeolite components and large pore acidic components in different proportions in a circulating fluidized bed reactor-regenerator system having reactor temperature within 450-750.degree. C. and WHSV of 0.1-60 hour.sup.-1.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: November 28, 2000
    Assignee: Indian Oil Corporation Limited
    Inventors: Asit Kumar Das, Sukumar Mandal, Sobhan Ghosh, Debasis Bhattacharyya, Ganga Shanker Mishra, Jagdev Kumar Dixit, Arvind Pratap Singh, Ashok Kumar Tewari, Satish Makhija, Manoranjan Santra, Latoor Lal Saroya, Shankar Sharma, Satyen Kumar Das
  • Patent number: 6117809
    Abstract: A method is disclosed for recovering chlorine-containing species from an outlet stream of a zone in which the catalytic metal of a chloride-containing catalyst is reduced. The outlet stream is passed to a sorption zone which contains catalyst and which is maintained at sorption conditions. The catalyst in the sorption zone sorbs the chlorine-containing species from the outlet stream. This method captures and retains within the process the chlorine-containing species that would otherwise be lost from the process and that would need to be replaced by the injection of make-up chlorine-containing species. This method results in a significant savings in capital and operating costs of a catalyst regeneration process that includes a reduction step. This method is adaptable to many catalytic hydrocarbon conversion processes which pass catalyst particles between or among moving bed reaction and regeneration zones.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: September 12, 2000
    Assignee: UOP LLC
    Inventors: Paul A. Sechrist, Delmar W. Robinson
  • Patent number: 6042717
    Abstract: An FCC feed injection arrangement injects feed transversely from the sides of a restricted opening into a stream of FCC catalyst to provide good feed and catalyst contacting in an arrangement that simplifies external pipe configurations and maintenance of the feed injection system. The invention forms a venturi or restricted opening by forming a generally square opening between two parallel extended chords on opposite sides of the riser. A venturi area may be built out of refractory lining or other abrasion resistant structures. The invention may use horizontally extended pipes that are tangentially positioned apart from each other across from the restricted opening to provide a simple construction for the feed injection arrangement. The pipes are easily inserted and withdrawn from the riser to permit easy maintenance of the nozzles in the highly erosive environment.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: March 28, 2000
    Assignee: UOP LLC
    Inventors: William H. Radcliffe, Brian W. Hedrick
  • Patent number: 6036845
    Abstract: A catalytic reforming process comprises a prereactor which provides an intermediate stream to a riser reactor with multiple catalyst injection points to obtain high aromatics yields from a naphtha feedstock. Product from the riser reactor typically is discharged into a fluidized-bed reforming reactor, in which the reforming reaction is completed and catalyst is separated from hydrogen and hydrocarbons. Hydrocarbons from the reactor are separated to recover an aromatized product. Catalyst is regenerated to remove coke and reduced for reuse in the reforming process.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 14, 2000
    Assignee: UOP LLC
    Inventors: Gregory A. Funk, Christopher D. Gosling, Paula L. Bogdan
  • Patent number: 6015932
    Abstract: A reactivation process is disclosed for a catalyst formulated to selectively upgrade naphtha to obtain an isoparaffin-rich product for blending into gasoline. The process utilizes a solid strong-acid catalyst comprising an anion-modified metal oxide, preferably comprising a sulfated support of an oxide or hydroxide of a Group IVB (IUPAC 4) metal, and a platinum-group metal component.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: January 18, 2000
    Assignee: UOP LLC
    Inventor: Stanley J. Frey
  • Patent number: 5972201
    Abstract: Magnetic separation of fluid cracking catalyst and magnetic hooks can be improved by adding antimony, in the feed or during catalyst manufacture, to enhance the magnetic susceptibility, thus increasing the separation efficiency of the older less active fluid cracking catalyst from the more desirable fraction for recycle. Antimony can also be used as a tag for determination of age distribution of said catalyst. Concentration levels of 0.005-15 wt. % antimony (Sb) on the catalyst or sorbent are preferred. The invention is particularly preferred on catalyst and sorbents which comprise at least about 0.001 wt. %, more preferably above about 0.01 wt. % iron, because the antimony has been found to enhance the magnetic susceptibility of iron-containing particulates.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: October 26, 1999
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: Terry L. Goolsby, Maurice M. Mitchell
  • Patent number: 5965473
    Abstract: A method is disclosed for recovering chlorine-containing species from the outlet gas of a hydrocarbon conversion process with a cyclic regeneration operation. The outlet gas from an off-stream catalyst bed in which regeneration is occurring is passed to another off-stream catalyst bed which contains spent catalyst and which is maintained at sorption conditions. The spent catalyst particles sorb the chlorine-containing species from the outlet gas. This method captures and retains within the hydrocarbon conversion process chlorine-containing species that would otherwise be scrubbed and lost from the process and that would need to be replaced by the injection of make-up chlorine-containing species. This method results in significant savings in operating costs of a cyclic regeneration process. This method is adaptable to many processes for the catalytic conversion of hydrocarbons in which deactivated catalyst are regenerated by a cyclic regeneration operation.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: October 12, 1999
    Assignee: UOP LLC
    Inventors: Paul A. Sechrist, Delmar W. Robinson
  • Patent number: 5948240
    Abstract: A process for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium amid simultaneous exchange of catalyst particles by an operation that sequentially restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted. The process permits a change out of catalyst in a channel type reactor arrangement that would normally restrict catalyst flow during operation. Moving catalyst through a heat exchange type reactor having reactant and heat exchange channels permits control of catalyst activity as well as temperatures.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: September 7, 1999
    Assignee: UOP LLC
    Inventors: Robert C. Mulvaney, III, Kevin J. Brandner, Steven T. Arakawa, Paul Anderson
  • Patent number: 5877368
    Abstract: Disclosed is a method for producing aromatic hydrocarbons, which comprises contacting a light hydrocarbon feedstock comprising olefins and/or paraffins with a zeolite catalyst in a fixed-bed, adiabatic reactor containing a fixed catalyst bed comprised of the zeolite catalyst, to thereby effect a catalytic cyclization reaction of the light hydrocarbon feedstock, wherein the catalytic cyclization reaction is performed under conditions which satisfy the following requirements: (1) the zeolite catalyst has an initial stage-catalytic activity of 0.2 (sec.sup.-1) or more in terms of the initial stage, first-order reaction rate constant of the decomposition of n-hexane catalyzed by the zeolite catalyst; (2) the catalyst bed has a temperature of from 450.degree. C. to 650.degree. C.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: March 2, 1999
    Assignee: Sanyo Petrochemical Co., Ltd.
    Inventors: Kazuyoshi Kiyama, Takashi Tsunoda, Masatsugu Kawase