Patents by Inventor Erik John Stewart

Erik John Stewart 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).

  • Publication number: 20240157287
    Abstract: A scrubbing solution for removing contaminants, including particularly hydrogen sulfide, from a fluid. The scrubbing solution includes at least one scrubbing reagent which has a primary or secondary amine and an acid, which may be phosphoric acid. The fluid being scrubbed is passed through the scrubbing solution. The contaminants react with the scrubbing reagent securing them in the scrubbing solution. The fluid being scrubbed and the scrubbing solution are then separated. The scrubbing solution is heated and, if the scrubbing solution is under pressure, the pressure is reduced. The acid facilitates thorough removal of the contaminants, and especially the hydrogen sulfide, from the scrubbing solution. The scrubbing solution is then ready for reuse. Because the scrubbing solution is rendered substantially free of hydrogen sulfides, it can absorb other sulfide contaminants that might not otherwise be absorbed.
    Type: Application
    Filed: November 20, 2023
    Publication date: May 16, 2024
    Inventors: ERIC MATTHEW TELETZKE, FLAVIA MARIANA DOS SANTOS BATES, BRETT CHRISTOPHER ROBERTS, ERIK JOHN STEWART, KATHLEEN YVONNE TURK
  • Patent number: 11819798
    Abstract: A scrubbing solution for removing contaminants, including particularly hydrogen sulfide, from a fluid. The scrubbing solution includes at least one scrubbing reagent which has a primary or secondary amine and an acid, which may be phosphoric acid. The fluid being scrubbed is passed through the scrubbing solution. The contaminants react with the scrubbing reagent securing them in the scrubbing solution. The fluid being scrubbed and the scrubbing solution are then separated. The scrubbing solution is heated and, if the scrubbing solution is under pressure, the pressure is reduced. The acid facilitates thorough removal of the contaminants, and especially the hydrogen sulfide, from the scrubbing solution. The scrubbing solution is then ready for reuse. Because the scrubbing solution is rendered substantially free of hydrogen sulfides, it can absorb other sulfide contaminants that might not otherwise be absorbed.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: November 21, 2023
    Assignee: INEOS AMERICAS, LLC
    Inventors: Eric Matthew Teletzke, Flavia Mariana Dos Santos Bates, Brett Christopher Roberts, Erik John Stewart, Kathleen Yvonne Turk
  • Publication number: 20220219113
    Abstract: A scrubbing solution for removing contaminants, including particularly hydrogen sulfide, from a fluid. The scrubbing solution includes at least one scrubbing reagent which has a primary or secondary amine and an acid, which may be phosphoric acid. The fluid being scrubbed is passed through the scrubbing solution. The contaminants react with the scrubbing reagent securing them in the scrubbing solution. The fluid being scrubbed and the scrubbing solution are then separated. The scrubbing solution is heated and, if the scrubbing solution is under pressure, the pressure is reduced. The acid facilitates thorough removal of the contaminants, and especially the hydrogen sulfide, from the scrubbing solution. The scrubbing solution is then ready for reuse. Because the scrubbing solution is rendered substantially free of hydrogen sulfides, it can absorb other sulfide contaminants that might not otherwise be absorbed.
    Type: Application
    Filed: January 24, 2022
    Publication date: July 14, 2022
    Applicant: Ineos Americas, LLC
    Inventors: ERIC MATTHEW TELETZKE, FLAVIA MARIANA DOS SANTOS BATES, BRETT CHRISTOPHER ROBERTS, ERIK JOHN STEWART, KATHLEEN YVONNE TURK
  • Patent number: 11229875
    Abstract: A scrubbing solution for removing contaminants, including particularly hydrogen sulfide, from a fluid. The scrubbing solution includes at least one scrubbing reagent which has a primary or secondary amine and an acid, which may be phosphoric acid. The fluid being scrubbed is passed through the scrubbing solution. The contaminants react with the scrubbing reagent securing them in the scrubbing solution. The fluid being scrubbed and the scrubbing solution are then separated. The scrubbing solution is heated and, if the scrubbing solution is under pressure, the pressure is reduced. The acid facilitates thorough removal of the contaminants, and especially the hydrogen sulfide, from the scrubbing solution. The scrubbing solution is then ready for reuse. Because the scrubbing solution is rendered substantially free of hydrogen sulfides, it can absorb other sulfide contaminants that might not otherwise be absorbed.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: January 25, 2022
    Assignee: INEOS AMERICAS, LLC
    Inventors: Eric Matthew Teletzke, Flavia Mariana Dos Santos Bates, Brett Christopher Roberts, Erik John Stewart, Kathleen Yvonne Turk