Patents by Inventor Patrick LITTLEWOOD

Patrick LITTLEWOOD 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: 20240010922
    Abstract: Liquefied petroleum gas (LPG) synthesis catalyst systems are disclosed that provide activities for both alcohol (e.g., methanol) synthesis and in situ dehydration of the alcohol (e.g., methanol) to hydrocarbons, and particularly the LPG hydrocarbons propane and/or butane. The incorporation of a stabilizer such as platinum and/or yttrium (e.g., as yttria or yttrium oxide) can benefit these catalyst systems, particularly in terms of improving their activity and/or stability. Other advantages may be realized by the incorporation of promoters such as manganese (Mn), magnesium (Mg), and/or silicon (Si) into these catalyst systems, such as to improve selectivity to, and/or yield of, desired LPG hydrocarbons.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 11, 2024
    Inventors: Patrick LITTLEWOOD, Terry MARKER, Michael BRADFORD
  • Publication number: 20230356188
    Abstract: Catalyst systems are provided which, in embodiments, comprise an aluminum oxide support comprising nickel, a layer of a lanthanide oxide on a surface of the aluminum oxide support, and a layer of aluminum oxide on a surface of the layer of the lanthanide oxide. In other embodiments, a catalyst system comprises an aluminum oxide support comprising nickel, a plurality of lanthanide oxide microdomains on surfaces of the nickel of the aluminum oxide support, and aluminum oxide on surfaces of the plurality of lanthanide oxide microdomains. Methods of making and using the catalyst systems, e.g., in methane reforming reactions, are also provided.
    Type: Application
    Filed: May 3, 2023
    Publication date: November 9, 2023
    Inventors: Tobin J. Marks, Peter C. Stair, Patrick Littlewood, Sol Ahn
  • Publication number: 20230069964
    Abstract: Pathways are disclosed for the production of liquefied petroleum gas (LPG) products comprising propane and/or butane, and in certain cases renewable products having non-petroleum derived carbon. In particular, a gaseous feed mixture comprising CO2 in combination with CH4 and/or H2 is converted by reforming and/or reverse water-gas shift (RWGS) reactions, further in combination with LPG synthesis. A preferred gaseous feed mixture comprises biogas or otherwise a mixture of CO2 and H2 that is not readily upgraded using conventional processes. Catalysts described herein have a high activity for reforming (including dry reforming) of CH4, as well as simultaneously catalyzing RWGS. These attributes improve the management of CO2 that is input to the disclosed processes, particularly in those utilizing recycle operation to increase overall CO2 conversion.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 9, 2023
    Inventors: Patrick LITTLEWOOD, Jim WANGEROW, Terry MARKER, Andrew WOLEK