Patents by Inventor Ebrahim Djavdan

Ebrahim Djavdan 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).

  • Process for partial oxidation of a gas stream containing hydrogen sulphide
    Patent number: 6328940
    Abstract: Process for partial oxidation in a Claus furnace of at least one gas stream having hydrogen sulphide, and including the steps of: (a) injecting at least one gas stream including hydrogen sulphide and at least one oxygen-enriched gas stream into the Claus furnace, wherein each of the streams is injected at a speed of injection which is substantially parallel, and (b) controlling the speed of injection of the gas stream including hydrogen sulphide and the speed of injection of the oxygen-enriched gas stream such that the speeds have a ratio between 0.8 and 1.2.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: December 11, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Ebrahim Djavdan, Jacques Koening, Jean-François Nicolas, Vincent Queudot, Olivier Charon
  • Process for partial oxidation of a gas stream containing hydrogen sulphide
    Patent number: 6083466
    Abstract: Process for partial oxidation in a Claus furnace of at least one gas stream comprising hydrogen sulphide, comprising the steps of:(a) injecting at least one gas stream comprising hydrogen sulphide and at least one oxygen-enriched gas stream into the Claus furnace, wherein each of the streams is injected at a speed of injection which is substantially parallel,(b) controlling the speed of injection of the gas stream comprising hydrogen sulphide and the speed of injection of the oxygen-enriched gas stream such that the speeds have a ratio between 0.8 and 1.2.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: July 4, 2000
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Ebrahim Djavdan, Jacques Koening, Jean-Fran.cedilla.ois Nicolas, Vincent Queudot, Olivier Charon