Patents by Inventor Delphine GARNAUD

Delphine GARNAUD 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).

  • METHOD FOR PURIFYING BIOGAS THROUGH MEMBRANES AT NEGATIVE TEMPERATURES
    Publication number: 20220152552
    Abstract: The invention relates to a method for membrane permeation of a gas flow including methane and carbon dioxide, wherein said gas flow is cooled to a temperature of 0° C. to ?60° C. before being fed into a membrane separation unit.
    Type: Application
    Filed: October 20, 2021
    Publication date: May 19, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Sarah BIGEARD, Delphine GARNAUD, David J. HASSE, Sudhir S. KULKARNI, Edgar S. SANDERS, JR., Golo ZICK
  • Method for producing biomethane incorporating the production of heat for the methaniser using membrane separation
    Patent number: 10106756
    Abstract: The present invention relates to a process for producing biomethane suitable for supplying a natural gas network that incorporates a process for providing heat for heating the biogas production step, the process comprising at least steps of producing biogas by anaerobic fermentation of organic matter, of pretreating and compressing the biogas and also of permeation in order to obtain, after a first separation by permeation, a stream of biomethane and a gaseous permeate having a reduced methane content; the process additionally provides the heat necessary for the anaerobic fermentation step via a boiler using the retentate from a second permeation step fed by the permeate from the first separation.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: October 23, 2018
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Nicolas Paget, Delphine Garnaud, Guénaël Prince, Mathieu Lefebvre
  • METHOD FOR PURIFYING BIOGAS THROUGH MEMBRANES AT NEGATIVE TEMPERATURES
    Publication number: 20170304769
    Abstract: The invention relates to a method for membrane permeation of a gas flow including methane and carbon dioxide, wherein said gas flow is cooled to a temperature of 0° C. to ?60° C. before being fed into a membrane separation unit.
    Type: Application
    Filed: August 12, 2015
    Publication date: October 26, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Sarah BIGEARD, Delphine GARNAUD, David J. HASSE, Sudhir S. KULKARNI, Edgar S. SANDERS, Golo ZICK
  • METHOD FOR PRODUCING BIOMETHANE INCORPORATING THE PRODUCTION OF HEAT FOR THE METHANISER USING MEMBRANE SEPARATION
    Publication number: 20160289580
    Abstract: The present invention relates to a process for producing biomethane suitable for supplying a natural gas network that incorporates a process for providing heat for heating the biogas production step, the process comprising at least steps of producing biogas by anaerobic fermentation of organic matter, of pretreating and compressing the biogas and also of permeation in order to obtain, after a first separation by permeation, a stream of biomethane and a gaseous permeate having a reduced methane content; the process additionally provides the heat necessary for the anaerobic fermentation step via a boiler using the retentate from a second permeation step fed by the permeate from the first separation.
    Type: Application
    Filed: November 6, 2014
    Publication date: October 6, 2016
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Nicolas PAGET, Delphine GARNAUD, Guéaël PRINCE, Mathieu LEFEBVRE