Patents by Inventor Renaud Pontier

Renaud Pontier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7220351
    Abstract: An apparatus and a process for catalytic cracking of a hydrocarbon feed is described, carried out in at least two reaction zones, one (30) operating in catalyst riser mode, wherein the feed and catalyst from regeneration zone (3) are circulated from bottom to top, the first gases produced are separated from the coked catalyst in a first separation zone (38), the catalyst is stripped (40), a first cracking and stripping effluent (42) is recovered and the coked catalyst is recycled (45) to the regeneration zone. Catalyst (12) from regeneration zone (3) and a hydrocarbon feed (19) are introduced into the upper portion of a dropper reaction zone (16), the catalyst and feed being circulated from top to bottom, the coked catalyst is separated from the second gases produced in a second separation zone (20), the second gases (24) produced are recovered and the coked catalyst is recycled (25) to the regeneration zone.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: May 22, 2007
    Assignee: Institut Francais du Petrole
    Inventors: Renaud Pontier, Patrick Leroy, Jean-Paul Lepage, Marcelin Espeillac
  • Patent number: 7022295
    Abstract: A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor (10) is provided by regulating the liquid and gas flow rates from separator (52), into which the liquid and the gas leaving the reactor (10) are routed. The liquid in the reactor (10) is tapped from a lateral branch pipe (32) fitted with a filter (36) and emerging in the upper area (30), behind a profiled wall (34).
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: April 4, 2006
    Assignee: Compagnie Generale des Matieres Nucleaires
    Inventors: Pietro Bilardello, Nicolas Durupt, Renaud Pontier
  • Publication number: 20040219080
    Abstract: A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor (10) is provided by regulating the liquid and gas flow rates from a high-pressure separator (52), into which the liquid and the gas leaving the reactor (10) are routed. The liquid in the reactor (10) is tapped from a lateral branch pipe (32) fitted with a filter (36) and emerging in the upper area (30), behind a profiled wall (34).
    Type: Application
    Filed: May 24, 2004
    Publication date: November 4, 2004
    Applicant: Compagnie Generale Des Matieres Nucleaires
    Inventors: Pietro Bilardello, Nicolas Durupt, Renaud Pontier
  • Patent number: 6759027
    Abstract: A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor (10) is provided by regulating the liquid and gas flow rates from a high pressure separator (52), into which the liquid and the gas leaving the reactor (10) are routed. The liquid in the reactor (10) is tapped from a lateral branch pipe (32) fitted with a filter (36) and emerging in the upper area (30), behind a profiled wall (34).
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: July 6, 2004
    Assignee: Compagnie Generale des Matieres Nucleaires
    Inventors: Pietro Bilardello, Nicolas Durupt, Renaud Pontier
  • Patent number: 6099720
    Abstract: A process is described for catalytic cracking of a petroleum feed in which a catalyst from a regeneration zone 4 is caused to flow in a dense fluidized bed conditioning zone 2 upstream of an injection zone 10, the fluidization rate being 0.1 to 30 cm/s. The throughput of catalyst into injection zone 10 is regulated by a constriction means 11. The hydrocarbon feed 12 is injected below the constriction means and flows counter-current to the direction of flow of the shaped catalyst flow. The hydrocarbon feed 12 is injected at a set injection angle depending on the movement of the feed and the catalyst.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: August 8, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Renaud Pontier, Regis Bonifay, Gerard Courteheuse, Mariano Del Pozo, Thierry Gauthier
  • Patent number: 5833936
    Abstract: A vessel, in which a chemical reaction is carried out in the presence of a catalyst, comprises a bed (4) of solid catalytic particles, delimited by at least one wall (1, 10, 11) and a base (2). The base comprises at least one gravity extraction device (3) for the particles and a succession of ridges and hollows forming pleats. The ridges and hollows are oriented towards the extraction device. This succession is advantageously formed by an assembly of facets, which are preferably trapezoidal. The invention has particular application to mobile bed reactors, in particular those used for catalytic reforming of petroleum cuts.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: November 10, 1998
    Assignee: Institut Francais du Petrole
    Inventors: Jean Paul Euzen, Renaud Pontier, Daniel Vuillemot
  • Patent number: 5773379
    Abstract: The invention concerns a process for thermal regulation in a continuous fluidized bed treatment process for a powdered solid, wherein the solid is treated in a fluidized bed treatment zone, at least a portion of the solid is extracted from said zone and transported to an external heat exchanger (21) containing at least one array (22) of thermal exchange tubes in which vaporizable cooling fluid circulates, fluidized or mobile bed thermal regulation by indirect heat exchange with the fluid is carried out and the portion of regulated solid is extracted for recycling into the treatment zone or to another treatment zone (1). More precisely, said portion of solid is circulated in descending mode by means of an inert or non inert fluidization fluid across the array of tubes (22) which are wound such that the current of solid intersects said tubes and that the cooling fluid is circulated in one direction in the array of tubes.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: June 30, 1998
    Assignee: Institut Francais Du Petrole
    Inventors: Regis Bonifay, Thierry Gauthier, Renaud Pontier, Frederic Hoffmann
  • Patent number: 5686049
    Abstract: A catalyst, e.g., a cracking catalyst, and a part of the regeneration fumes are drawn off from the dense catalytic bed of a second regenerator (9) and are introduced by force of gravity into an external exchanger (21) at a junction point beneath the level of the dense bed of the second regenerator. The heat exchange takes place in the bottom part of the exchanger below the junction point. Between the bottom end of the exchanger and the region above the junction point a dense bed zone is formed at a level which is substantially at the height of the dense bed in the regenerator and a discharge zone (27), of suitable size, for the regeneration gases and fluidization gas. The gases and fumes from the exchanger are removed in the diluted fluidized phase from the second regenerator through a conduit (28), while the catalyst is recycled into the bed of the first regenerator through a conduit (34).
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: November 11, 1997
    Assignee: Institut Francais Du Petrole
    Inventors: Regis Bonifay, Frederic Hoffmann, Renaud Pontier, Thierry Gauthier
  • Patent number: 5498326
    Abstract: The invention relates to a process for catalytic cracking and the associated apparatus in which the cracking reaction takes place in two substantially vertical and successive reaction zones, the loads being introduced into the first zone where it circulates from the top downwards, then at least a part of the product obtained is introduced into a second reaction zone in which it circulates in an ascending fashion. A supplementary hydrocarbonated phase is advantageously introduced into the product entering the second zone. The invention applies particularly to heavy loads, with a U-shaped apparatus.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: March 12, 1996
    Assignee: Institut Francats du Petrole
    Inventors: Pierre Galtier, Regis Bonifay, Sigismond Franckowiak, Thierry Gauthier, Renaud Pontier
  • Patent number: 5449496
    Abstract: The invention relates to a downflow fluid cracking process and apparatus, particularly suitable for use in the catalytic cracking of heavy hydrocarbon charges. More specifically, removal of at least partly regenerated catalyst, which must be recycled to the reactor 1 from a dense phase 17a contained in a regenerator 17, and the introduction of the catalyst into the upper part 3 of the reactor 1 takes place under conditions such that the density of the thus formed gas-solid suspension is between 80 and 500 kg/m.sup.3 prior to its contacting with the charge, which is introduced by the injectors 5.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: September 12, 1995
    Assignee: Institut Francais Du Petrole
    Inventors: Renaud Pontier, Frederic Hoffmann, Pierre Galtier
  • Patent number: 5444175
    Abstract: The invention relates to an alkylation process, in which a charge incorporating at least one isoparaffin and at least one olefin containing 2 to 6 carbon atoms per molecule, is treated in the presence of a solid alkylation catalyst. In the process, catalyst present in a reaction R is contacted with the charge, recycled liquid effluent discharged from reaction zone R and liquid effluent discharged from an isobutane/n-butane/alkylate separation zone S. The process uses a specific catalyst, e.g., sulfuric acid impregnated on a porous support.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: August 22, 1995
    Assignee: Institut Francais Du Petrole
    Inventors: Jean-Francois Joly, Eric Benazzi, Christian Marcilly, Renaud Pontier, Jean-Francois Le Page
  • Patent number: 5344554
    Abstract: The invention relates to a downflow fluid cracking process and apparatus. More specifically, sampling takes place of the at least partly regenerated catalyst, which must be recycled to the reactor 1 from a dense phase 17a, contained in a regenerator 17 and the stage of introducing the catalyst into the upper part 3 of the reactor 1 takes place under conditions such that the density of the thus formed gas-solid suspension is between 80 and 500 kg/m.sup.3 prior to its contacting with the charge, which is introduced by the injectors 5.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: September 6, 1994
    Assignee: Institut Francais Du Petrole
    Inventors: Renaud Pontier, Frederic Hoffmann, Pierre Galtier
  • Patent number: 5324696
    Abstract: A catalyst, e.g., a cracking catalyst, and a part of the regeneration fumes are drawn off from the dense catalytic bed of a second regenerator (9) and are introduced by force of gravity into an external exchanger (21) at a junction point beneath the level of the dense bed of the second regenerator. The heat exchange takes place in the bottom part of the exchanger below the junction point. Between the bottom end of the exchanger and the region above the junction point a dense bed zone is formed at a level which is substantially at the height of the dense bed in the regenerator and a discharge zone (27), of suitable size, for the regeneration gases and fluidization gas. The gases and fumes from the exchanger are removed in the diluted fluidized phase from the second regenerator through a conduit (28), while the catalyst is recycled in to the bed of the first regenerator through a conduit (34).
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: June 28, 1994
    Assignee: Institut Francais du Petrole
    Inventors: Regis Bonifay, Frederic Hoffmann, Renaud Pontier, Thierry Gauthier
  • Patent number: 5120691
    Abstract: A process and apparatus for the heat regulation of fluidized or fluid catalyst beds are described, the apparatus having a fluid bed heat exchanger. According to the invention, a pulverulent solid is made to flow essentially from the base of an enclosure (1) into a heat exchanger (6) having an internal separating partition (22) which defines two elongated, adjacent compartments (23, 24) communicating at their lower part. In the compartment in which the pulverulent solid flows downwards, the fluidization speed or rate is between 0.1 cm to 2 m/s, whereas in the compartment wherein the pulverulent solid rises again into the heat exchanger (6), the fluidization speed is between 0.1 and 6 m/s. The invention can be used for refining reaction (e.g., catalytic reforming), for the regeneration of a fluidized bed catalytic cracking catalyst of a petroleum or oil charge, or for the combustion of coal.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: June 9, 1992
    Assignee: Institut Francais du Petrole
    Inventors: Renaud Pontier, Frederic Hoffmann
  • Patent number: 4965232
    Abstract: A catalyst regeneration process effected in an apparatus which comprises two regeneration chambers, a heat exchanger, means for withdrawing from the second chamber a controlled fraction of hot catalyst for the purpose of maintaining the temperature in that chamber substantially at a first desirable value of less than 950.degree. C., and preferably at 910.degree. C., means for transferring this fraction of hot catalyst to the heat exchanger for the purpose of cooling it, means for the discharge of the cooled catalyst from the heat exchanger and the reinjection of the cooled catalyst into the first chamber, and means, controlled by the means for measuring the temperature in the first chamber, for regulating the supply of combustion fluid to the first chamber for the purpose of maintaining said temperature substantially at a second desired value lower than 730.degree. C. and preferably ranging from 650.degree. to 710.degree. C.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: October 23, 1990
    Assignees: Compagnie de Raffinage et de Distribution Total France, Institut Francais du Petrole
    Inventors: Jean-Louis Mauleon, Jean-Bernard Siguad, Renaud Pontier, Frederic Hoffmann
  • Patent number: 4862954
    Abstract: The present invention provides an exchanger and a method for achieving heat transfer between solid particles contained in an enclosure and the external environment.The device comprises a main enclosure and several auxiliary compartments separate from each other and at least one of said compartments comprises its own fluidization means.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: September 5, 1989
    Assignees: Institut Francais du Petrole, Societe Fluidbi
    Inventors: Hervee Hellio, Alain Feugier, Gerard Martin, Renaud Pontier