Patents by Inventor Philippe COIGNET

Philippe COIGNET 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).

  • HYBRID MEMBRANE AND PRESSURE SWING ADSORPTION NITROGEN REMOVAL SYSTEM
    Publication number: 20260108845
    Abstract: A process for removing nitrogen from a feed gas containing at least nitrogen and methane comprises a) introducing the feed gas into a first membrane stage to produce a first permeate enriched in methane and a first residue enriched in nitrogen; b) forwarding the first residue into a second membrane stage to produce a second permeate enriched in methane and a second residue enriched in nitrogen; c) forwarding the second residue into pressure swing adsorption (PSA) beds to produce an high pressure overhead stream containing nitrogen and a low pressure offgas stream containing methane therein; d) combining the second permeate enriched in methane and the low pressure offgas stream containing methane to form a combined gas and forwarding the combined gas to the feed gas for recycle; e) collecting a first permeate enriched in methane as a product; and f) venting out the high pressure overhead stream containing nitrogen.
    Type: Application
    Filed: October 18, 2024
    Publication date: April 23, 2026
    Inventors: Alexander S. AUGUSTINE, Paul TERRIEN, Philippe COIGNET
  • Method of purifying hydrogen from a metal hydride storage system
    Patent number: 9878278
    Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.
    Type: Grant
    Filed: April 30, 2016
    Date of Patent: January 30, 2018
    Assignee: L'AIR LIQUIDE SOCIÉTÉ ANONYME POUR L'ÉTUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Pascal Tessier, Philippe Coignet, Benjamin Jurcik, Ryan Adelman
  • System for purifying hydrogen from a metal hydride storage system
    Patent number: 9878279
    Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.
    Type: Grant
    Filed: April 30, 2016
    Date of Patent: January 30, 2018
    Assignee: L'AIR LIQUIDE SOCIÉTÉ ANONYME POUR L'ÉTUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Pascal Tessier, Philippe Coignet, Benjamin Jurcik, Ryan Adelman
  • METHOD OF PURIFYING HYDROGEN FROM A METAL HYDRIDE STORAGE SYSTEM
    Publication number: 20170239610
    Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.
    Type: Application
    Filed: April 30, 2016
    Publication date: August 24, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Pascal TESSIER, Philippe COIGNET, Benjamin JURCIK, Ryan ADELMAN
  • SYSTEM FOR PURIFYING HYDROGEN FROM A METAL HYDRIDE STORAGE SYSTEM
    Publication number: 20170239611
    Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.
    Type: Application
    Filed: April 30, 2016
    Publication date: August 24, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Pascal TESSIER, Philippe COIGNET, Benjamin JURCIK, Ryan ADELMAN