Patents by Inventor Sophie Drozdz

Sophie Drozdz 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: 10463987
    Abstract: The invention relates to a process for purifying an aqueous solution comprising ethanol, acetaldehyde and diethylacetal comprising: a step A) of countercurrent liquid-liquid extraction comprising an extraction section supplied at the top by said aqueous solution as a mixture with at least one fraction of the water/ethanol/acetaldehyde raffinate resulting from the back extraction step B), and at the bottom by an extraction solvent, and producing an extract at the top and a purified feedstock at the bottom; —a step B) of countercurrent liquid-liquid back extraction comprising a back extraction section supplied at the top by an acidic aqueous solution, the pH of which is between 0.5 and 5, and at the bottom by the extract resulting from step A), and producing an extract at the top and a water/ethanol/acetaldehyde raffinate at the bottom.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: November 5, 2019
    Assignees: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Celine Hognon, Sophie Drozdz, Marc Jacquin, Damien Leinekugel Le Cocq, Frederic Augier
  • Publication number: 20190232193
    Abstract: The invention relates to a process for purifying an aqueous solution comprising ethanol, acetaldehyde and diethylacetal comprising: a step A) of countercurrent liquid-liquid extraction comprising an extraction section supplied at the top by said aqueous solution as a mixture with at least one fraction of the water/ethanol/acetaldehyde raffinate resulting from the back extraction step B), and at the bottom by an extraction solvent, and producing an extract at the top and a purified feedstock at the bottom; —a step B) of countercurrent liquid-liquid back extraction comprising a back extraction section supplied at the top by an acidic aqueous solution, the pH of which is between 0.5 and 5, and at the bottom by the extract resulting from step A), and producing an extract at the top and a water/ethanol/acetaldehyde raffinate at the bottom.
    Type: Application
    Filed: October 13, 2017
    Publication date: August 1, 2019
    Applicants: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Celine HOGNON, Sophie DROZDZ, Marc JACQUIN, Damien LEINEKUGEL LE COCQ, Frederic AUGIER
  • Patent number: 10351497
    Abstract: The invention pertains to the use of a solvent that comprises a Lewis donor compound that is selected from the group made up of unsaturated fatty acids that have between 12 and 18 carbon atoms, phosphate esters that have between 12 and 30 carbon atoms, and mixtures thereof to separate the impurities from a feedstock that contains ethanol, acetaldehyde, and impurities.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: July 16, 2019
    Assignees: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Celine Hognon, Sophie Drozdz, Marc Jacquin
  • Publication number: 20190144366
    Abstract: The invention pertains to the use of a solvent that comprises a Lewis donor compound that is selected from the group made up of unsaturated fatty acids that have between 12 and 18 carbon atoms, phosphate esters that have between 12 and 30 carbon atoms, and mixtures thereof to separate the impurities from a feedstock that contains ethanol, acetaldehyde, and impurities.
    Type: Application
    Filed: May 9, 2017
    Publication date: May 16, 2019
    Applicants: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Celine HOGNON, Sophie DROZDZ, Marc JACQUIN
  • Patent number: 9586875
    Abstract: The invention relates to a process for purification of olefinic feedstocks using an adsorbent comprising a 12 MR-type zeolite, in which the zeolite content of said adsorbent is between 93% by weight and 100% by weight, and the binder content of said adsorbent is between 0 and 7% by weight, in which said zeolite contains silicon and an element T that is selected from the group that consists of aluminum, boron, gallium and iron, and in which the Si/T atomic ratio is less than 20.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 7, 2017
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Sophie Drozdz, Emmanuelle Bracco, Delphine Marti, Elsa Jolimaitre, Arnaud Baudot
  • Publication number: 20150005565
    Abstract: The invention relates to a process for purification of olefinic feedstocks using an adsorbent comprising a 12 MR-type zeolite, in which the zeolite content of said adsorbent is between 93% by weight and 100% by weight, and the binder content of said adsorbent is between 0 and 7% by weight, in which said zeolite contains silicon and an element T that is selected from the group that consists of aluminum, boron, gallium and iron, and in which the Si/T atomic ratio is less than 20.
    Type: Application
    Filed: October 31, 2012
    Publication date: January 1, 2015
    Applicant: IFP ENERGIES NOUVELLES
    Inventors: Sophie Drozdz, Emmanuelle Bracco, Delphine Marti, Elsa Jolimaitre, Arnaud Baudot
  • 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
  • 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
  • Patent number: 7635424
    Abstract: The mercaptan-laden natural gas is contacted with a mercaptan-adsorbing sieve T1. The mercaptan-rich gaseous effluent obtained upon regeneration of sieve T2 is then contacted with an olefin-containing liquid feed in the presence of an acid catalyst. Under suitable conditions, the mercaptans are absorbed in the liquid feed and they react with the olefins so as to form solvent-soluble sulfides. A solvent regeneration stage allows the capture agent to be recycled.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: December 22, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Patrick Briot, Renaud Cadours, Sophie Drozdz, Fabrice Lecomte
  • Patent number: 7597872
    Abstract: A process for treating a gas containing hydrogen sulphide (H2S) and sulphur dioxide, contacting the gas at a suitable temperature with an organic solvent containing at least a soluble catalytic system, comprising at least one compound comprising at least one functional group A consisting of a carboxylic acid function and at least one functional group B comprising at least one nitrogen atom and which can produce an acid-base type reaction with at least one functional group A under the operating conditions of said process; and recovering a gaseous effluent substantially depleted in hydrogen sulphide and sulphur dioxide along with liquid sulphur separated from the solvent by liquid-liquid decantation.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: October 6, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Pierre-Louis Carrette, Bruno Delfort, Sophie Drozdz, Ludovic Raynal
  • Publication number: 20070193925
    Abstract: The mercaptan-laden natural gas is contacted with a mercaptan-adsorbing sieve T1. The mercaptan-rich gaseous effluent obtained upon regeneration of sieve T2 is then contacted with an olefin-containing liquid feed in the presence of an acid catalyst. Under suitable conditions, the mercaptans are absorbed in the liquid feed and they react with the olefins so as to form solvent-soluble sulfides. A solvent regeneration stage allows the capture agent to be recycled.
    Type: Application
    Filed: January 23, 2007
    Publication date: August 23, 2007
    Inventors: Patrick Briot, Renaud Cadours, Sophie Drozdz, Fabrice Lecomte
  • Patent number: 7192565
    Abstract: The gaseous feed flowing in through line 1 is contacted in contacting zone ZA with a liquid solvent flowing in through line 2. The solvent comprises between 0.001% and 100% by weight of a liquid olefin. Contacting in zone ZA is carried out in the presence of an acid catalyst. The purified gaseous feed is discharged from zone ZA through line 3. The sulfide-laden solvent is discharged through line 4, then regenerated in unit RE. The regenerated solvent is recycled through lines 7 and 2 to zone ZA.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: March 20, 2007
    Assignee: Institut Francais du Petrole
    Inventors: Patrick Briot, Renaud Cadours, Sophie Drozdz, Fabrice Lecomte
  • Publication number: 20060204433
    Abstract: A process for treating a gas containing hydrogen sulphide (H2S) and sulphur dioxide (SO2) is described in which: said gas is brought into contact at a suitable temperature with an organic solvent containing at least a soluble catalytic system, comprising at least one compound comprising at least one functional group A consisting of a carboxylic acid function and at least one functional group B comprising at least one nitrogen atom and which can produce an acid-base type reaction with at least one functional group A under the operating conditions of said process; a gaseous effluent substantially depleted in hydrogen sulphide and sulphur dioxide is recovered, along with liquid sulphur separated from the solvent by liquid-liquid decantation; said catalytic system which is employed slowing by-product formation.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 14, 2006
    Inventors: Pierre-Louis Carrette, Bruno Delfort, Sophie Drozdz, Ludovic Raynal
  • Publication number: 20060034742
    Abstract: The gaseous feed flowing in through line 1 is contacted in contacting zone ZA with a liquid solvent flowing in through line 2. The solvent comprises between 0.001% and 100% by weight of a liquid olefin. Contacting in zone ZA is carried out in the presence of an acid catalyst. The purified gaseous feed is discharged from zone ZA through line 3. The sulfide-laden solvent is discharged through line 4, then regenerated in unit RE. The regenerated solvent is recycled through lines 7 and 2 to zone ZA.
    Type: Application
    Filed: August 2, 2005
    Publication date: February 16, 2006
    Inventors: Patrick Briot, Renaud Cadours, Sophie Drozdz, Fabrice Lecomte