Patents by Inventor Alma I. Rodarte

Alma I. Rodarte 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).

  • Patent number: 7004985
    Abstract: The present invention relates to an integrated gasification and hydroprocessing process. A hydrocarbonaceous fuel is first gasified to produce syngas, and then a portion of the hydrogen is removed from the syngas. The hydrogen is compressed and used as an excess reactant in a hydroprocessing unit. Hydrogen gas is recovered from the hydroprocessing unit product, purified, compressed and recycled to the hydroprocessing unit. The hydrogen-poor syngas is expanded in an expander that drives the compressor that compresses the recycled hydrogen gas. The expanded syngas is then combined with light hydrocarbons removed from the recycle hydrogen gas stream, combusted in a gas turbine and used for power generation.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: February 28, 2006
    Assignee: Texaco, Inc.
    Inventors: Paul S. Wallace, Kay A. Johnson, Janice L. Kasbaum, Alma I. Rodarte
  • Patent number: 6550252
    Abstract: A hydrotreated liquid contains volatile hydrocarbons, hydrogen, and contaminants such as hydrogen sulfide. An inert gas, preferably nitrogen, is used to strip volatiles from the hydrotreated liquid. This stripper gas is then added to fuel gas fed to a combustion turbine, where combustibles in the fuel gas and stripper gas are combusted. The stripping is at a pressure sufficient to allow the stripper gas, now containing hydrocarbons and hydrogen, to be added to the combustion turbine fuel without additional compression. This process allows for efficient use of the stripped combustibles, and the nitrogen added to the fuel, gas provides increased power generation from the combustion turbine and reduces NOx emissions.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: April 22, 2003
    Assignee: Texaco Inc.
    Inventors: Paul S. Wallace, Kay A. Johnson, Alma I. Rodarte
  • Publication number: 20030041518
    Abstract: The present invention relates to an integrated gasification and hydroprocessing process. A hydrocarbonaceous fuel is first gasified to produce syngas, and then a portion of the hydrogen is removed from the syngas. The hydrogen is compressed and used as an excess reactant in a hydroprocessing unit. Hydrogen gas is recovered from the hydroprocessing unit product, purified, compressed and recycled to the hydroprocessing unit. The hydrogen-poor syngas is expanded in an expander that drives the compressor that compresses the recycled hydrogen gas. The expanded syngas is then combined with light hydrocarbons removed from the recycle hydrogen gas stream, combusted in a gas turbine and used for power generation.
    Type: Application
    Filed: September 5, 2001
    Publication date: March 6, 2003
    Applicant: Texaco Inc.
    Inventors: Paul S. Wallace, Kay A. Johnson, Janice L. Kasbaum, Alma I. Rodarte
  • Publication number: 20020068768
    Abstract: A hydrotreated liquid contains volatile hydrocarbons, hydrogen, and contaminants such as hydrogen sulfide. An inert gas, preferably nitrogen, is used to strip volatiles from the hydrotreated liquid. This stripper gas is then added to fuel gas fed to a combustion turbine, where combustibles in the fuel gas and stripper gas are combusted. The stripping is at a pressure sufficient to allow the stripper gas, now containing hydrocarbons and hydrogen, to be added to the combustion turbine fuel without additional compression. This process allows for efficient use of the stripped combustibles, and the nitrogen added to the fuel gas provides increased power generation from the combustion turbine and reduces NOx emissions.
    Type: Application
    Filed: October 10, 2001
    Publication date: June 6, 2002
    Inventors: Paul S. Wallace, Kay A. Johnson, Alma I. Rodarte