Patents by Inventor Sebastien Andre Duval

Sebastien Andre Duval 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).

  • Membrane process for H2 recovery from sulfur recovery tail gas stream of sulfur recovery units and process for environmentally greener sales gas
    Patent number: 11383200
    Abstract: Methods and systems are provided for treating the tail gas stream of a sulfur recovery plant. The methods including generating a tail gas stream from a sulfur recovery plant, treating the tail gas stream with a hydrogen sulfide removal unit and a hydrogen selective membrane unit, generating a stream low in hydrogen sulfide and a stream rich in hydrogen. The hydrogen sulfide rich stream is recycled to the sulfur recovery unit. The hydrogen selective membrane unit includes a glassy polymer membrane selective for hydrogen over hydrogen sulfide and carbon dioxide.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: July 12, 2022
    Inventors: Seung-Hak Choi, Sebastien Andre Duval, Milind Vaidya, Feras Hamad, Ahmad Bahamdan, Ahmed Al-Talib
  • MEMBRANE PROCESS FOR H2 RECOVERY FROM SULFUR RECOVERY TAIL GAS STREAM OF SULFUR RECOVERY UNITS AND PROCESS FOR ENVIRONMENTALLY GREENER SALES GAS
    Publication number: 20220062818
    Abstract: Methods and systems are provided for treating the tail gas stream of a sulfur recovery plant. The methods including generating a tail gas stream from a sulfur recovery plant, treating the tail gas stream with a hydrogen sulfide removal unit and a hydrogen selective membrane unit, generating a stream low in hydrogen sulfide and a stream rich in hydrogen. The hydrogen sulfide rich stream is recycled to the sulfur recovery unit. The hydrogen selective membrane unit includes a glassy polymer membrane selective for hydrogen over hydrogen sulfide and carbon dioxide.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 3, 2022
    Applicant: Saudi Arabian Oil Company
    Inventors: Seung-Hak Choi, Sebastien Andre Duval, Milind Vaidya, Feras Hamad, Ahmad Bahamdan, Ahmed Al-Talib