Patents by Inventor Donald E Zeek

Donald E Zeek 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 the production of gasoline with a low sulfur content comprising a stage for transformation of sulfur-containing compounds, an acid-catalyst treatment and a desulfurization
    Patent number: 7374667
    Abstract: For the production of gasoline with a low sulfur content, a process comprises at least one stage for transformation of sulfur-containing compounds consisting of an alkylation or adsorption of sulfur-containing compounds and/or an increasing of the weight of light sulfur-containing compounds, at least one stage for treatment in the presence of an acid catalyst and at least one desulfurization treatment of at least a portion of the gasoline. The process can also optionally comprise at least one stage for selective hydrogenation of diolefins and optionally at least one fractionation of the gasoline that is obtained into at least two fractions: light gasoline and heavy gasoline.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: May 20, 2008
    Assignees: BP Corporation North America, Inc., Institute Francais du Petrole
    Inventors: Quentin Debuisschert, Denis Uzio, Jean-Luc Nocca, Florent Picard, David B Arnett, Mike Grayson, Donald E Zeek, Carl Snider