Patents by Inventor P-Louis Carrette

P-Louis Carrette 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).

  • Publication number: 20200131441
    Abstract: A Fischer-Tropsch process for synthesizing hydrocarbons, by bringing a catalyst comprising a support and an active phase comprising a Group VIII metal into contact with a feedstock comprising synthesis gas, said catalyst being prepared according to the following steps: a) a porous support is provided; b) an organic compound containing oxygen and/or nitrogen is added to the porous support; c) a step of bringing said porous support into contact with a solution containing a salt of a precursor of the phase comprising a Group VIII metal is carried out; d) the porous support obtained at the end of step c) is dried; characterized in that step b) is carried out by bringing together said porous support and said organic compound under conditions of temperature, pressure and duration such that a fraction of said organic compound is transferred in the gaseous state to the porous support.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Applicant: IFP Energies nouvelles
    Inventors: Florent GUILLOU, P-Louis CARRETTE, Bertrand GUICHARD, Damien DELCROIX
  • Publication number: 20200071625
    Abstract: The invention relates to a process for adding an organic compound to a porous solid wherein the porous solid and the organic compound in the liquid state are brought together simultaneously, without physical contact between the solid and the organic compound in the liquid state, at a temperature below the boiling point of the organic compound and under pressure and time conditions such that a fraction of said organic compound is transferred gaseously to the porous solid.
    Type: Application
    Filed: April 24, 2018
    Publication date: March 5, 2020
    Applicant: IFP Energies Nouvelles
    Inventors: Florent GUILLOU, P-Louis CARRETTE, Bertrand GUICHARD
  • Publication number: 20190270080
    Abstract: The invention has as its object a catalyst that comprises a substrate based on alumina or silica or silica-alumina, at least one element from group VIII, at least one element from group VIB, and at least one additive that is selected from among 2-acetylbutyrolactone and/or its hydrolysis products, 2-(2-hydroxyethyl)-3-oxobutanoic acid, and 3-hydroxy-2-(2-hydroxyethyl)-2-butenoic acid. The invention also relates to the method for preparation of said catalyst and its use in a method for hydrotreatment and/or hydrocracking.
    Type: Application
    Filed: June 22, 2017
    Publication date: September 5, 2019
    Applicant: IFP Energies Nouvelles
    Inventor: P-Louis CARRETTE
  • Patent number: 9211495
    Abstract: The degradation of an absorbent solution comprising organic compounds provided with an amine function in aqueous solution is reduced considerably in the presence of a small amount of degradation-inhibiting additives belonging to the class of derivatives of pyrimidine or of triazine, at least one substituent of which contains a sulfur atom. The absorbent solution is employed for deacidifying a gaseous effluent.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 15, 2015
    Assignee: IFP Energies nouvelles
    Inventors: Bruno Delfort, P-Louis Carrette
  • Patent number: 9139512
    Abstract: The degradation of an absorbent solution comprising organic compounds with an amine functional group in aqueous solution is substantially reduced in the presence of a small amount of degradation inhibiting agents belonging to the family of derivatives of triazoles or of a tetrazole at least one substituent of which contains a sulfur atom. The absorbent solution is used to deacidize a gaseous effluent.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: September 22, 2015
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: P.-Louis Carrette, Bruno Delfort
  • Patent number: 8562927
    Abstract: The degradation of an absorbent solution comprising organic compounds provided with an amine function in aqueous solution is reduced considerably in the presence of a small amount of degradation inhibiting additives whose structure comprises a 5-atom heterocycle composed of a nitrogen atom, a sulfur atom or an oxygen atom, and 3 carbon atoms, at least one of which is joined to a sulfur atom not belonging to the ring. The absorbent solution is employed for deacidifying a gaseous effluent.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: October 22, 2013
    Assignee: IFP
    Inventors: P-Louis Carrette, Bruno Delfort
  • Publication number: 20120308452
    Abstract: The degradation of an absorbent solution comprising organic compounds provided with an amine function in aqueous solution is reduced considerably in the presence of a small amount of degradation inhibiting additives whose structure comprises a 5-atom heterocycle composed of a nitrogen atom, a sulfur atom or an oxygen atom, and 3 carbon atoms, at least one of which is joined to a sulfur atom not belonging to the ring. The absorbent solution is employed for deacidifying a gaseous effluent.
    Type: Application
    Filed: November 19, 2010
    Publication date: December 6, 2012
    Inventors: P-Louis Carrette, Bruno Delfort
  • Publication number: 20120292565
    Abstract: The degradation of an absorbent solution comprising organic compounds provided with an amine function in aqueous solution is reduced considerably in the presence of a small amount of degradation-inhibiting additives belonging to the class of derivatives of pyrimidine or of triazine, at least one substituent of which contains a sulfur atom. The absorbent solution is employed for deacidifying a gaseous effluent.
    Type: Application
    Filed: November 19, 2010
    Publication date: November 22, 2012
    Inventors: Bruno Delfort, P - Louis Carrette
  • Publication number: 20120148463
    Abstract: The degradation of an absorbent solution comprising organic compounds with an amine functional group in aqueous solution is substantially reduced in the presence of a small amount of degradation inhibiting agents belonging to the family of derivatives of triazoles or of a tetrazole at least one substituent of which contains a sulfur atom. The absorbent solution is used to deacidize a gaseous effluent.
    Type: Application
    Filed: July 6, 2010
    Publication date: June 14, 2012
    Inventors: P.-Louis Carrette, Bruno Delfort
  • Patent number: 8071068
    Abstract: The invention concerns a process for desulphurization of a gaseous effluent containing hydrogen sulphide using a Claus treatment unit followed by a Claus tail gas treatment unit (TGT), said process comprising using a device for on-line analysis of the ratio H2S/SO2 at the outlet from the TGT unit and a feed-back loop which can maintain said H2S/SO2 molar ratio at the outlet from the TGT unit to a value close to 2 and generally in the range 1.5 to 2.5.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 6, 2011
    Assignee: IFP Energies Nouvelles
    Inventors: Julien Grandjean, Laurent Renaudot, P-Louis Carrette, Sophie Drozdz
  • Patent number: 8062619
    Abstract: A process and apparatus for the treatment of a gas that contains hydrogen sulfide and sulfurous anhydride, in which: a) the gas (3) contacts with an organic solvent (1) containing a catalyst in a gas-liquid reactor-contactor (2) so as to recover separately liquid sulfur and; a gas effluent containing sulfur vapor; subjecting the gas effluent to a first condensation zone (7) operating at 70-100° C. to deposit the sulfur in solid form on sufficiently cold walls of the equipment in zone (7), recovering resultant purified gas containing less than 30 ppm by volume of sulfur melting the deposited solid sulfur to regenerate the equipment, and recycling resultant liquefied sulfur to the reactor contactor.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: November 22, 2011
    Assignee: IFP Energies Nouvelles
    Inventors: Julien Grandjean, Nicolas Ferrando, Abdelhakim Koudil, P-Louis Carrette
  • Publication number: 20100266483
    Abstract: The invention concerns a process for desulphurization of a gaseous effluent containing hydrogen sulphide using a Claus treatment unit followed by a Claus tail gas treatment unit (TGT), said process comprising using a device for on-line analysis of the ratio H2S/SO2 at the outlet from the TGT unit and a feed-back loop which can maintain said H2S/SO2 molar ratio at the outlet from the TGT unit to a value close to 2 and generally in the range 1.5 to 2.5.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 21, 2010
    Applicant: IFP
    Inventors: Julien Grandjean, Laurent Renaudot, P-Louis Carrette, Sophie Drozdz
  • Publication number: 20100196240
    Abstract: The invention has as its object a process for the treatment of a gas that contains hydrogen sulfide and sulfurous anhydride, in which: a) The gas (3) is brought into contact with an organic solvent (1) that contains a catalyst in at least one gas-liquid reactor-contactor (2); a gas effluent that contains vapor sulfur and liquid sulfur is recovered separately, b) Said gas effluent is introduced into a first condensation zone (7) that operates at a temperature of between 70 and 100° C. so that the sulfur that is contained in said gas effluent is deposited in solid form on the so-called cold walls of the equipment of the zone (7), c) When the clogging limit of said equipment of zone (7) is reached, said equipment is regenerated so as to melt the solid sulfur that is deposited inside said equipment for obtaining a liquid effluent, d) Said liquid effluent is recycled in the reactor-contactor, e) A purified gas that contains less than 30 ppm by volume of sulfur is extracted from the zone (7).
    Type: Application
    Filed: February 1, 2010
    Publication date: August 5, 2010
    Applicant: IFP
    Inventors: Julien Grandjean, Nicolas Ferrando, Abdelhakim Koudil, P-Louis Carrette