Patents by Inventor Francois Benjamin Du Toit

Francois Benjamin Du Toit 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 and apparatus for the production of diesel fuels by oligomerisation of olefinic feed streams
    Patent number: 7271304
    Abstract: This invention provides a process for the production of diesel boiling range hydrocarbons, the process including at least the steps of obtaining an olefinic feed stream from one or more hydrocarbon producing processes wherein the olefinic feed stream contains branched short chain olefins having a chain length of from three to eight carbon atoms, and contacting the feed stream with a shape selective medium pore acid zeolite catalyst in a pressurised reactor at elevated temperature so as to convert said short chain olefins to higher hydrocarbons. The invention also provides an apparatus for carrying out the process and recovering the catalyst for reuse.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: September 18, 2007
    Assignee: Sasol Technology (Pty) Ltd.
    Inventor: Francois Benjamin Du Toit
  • Process and apparatus for the production of diesel fuels by oligomerisation of olefinic feed streams
    Publication number: 20030171632
    Abstract: This invention provides a process for the production of diesel boiling range hydrocarbons, the process including at least the steps of obtaining an olefinic feed stream from one or more hydrocarbon producing processes wherein the olefinic feed stream contains branched short chain olefins having a chain length of from three to eight carbon atoms, and contacting the feed stream with a shape selective medium pore acid zeolite catalyst in a pressurised reactor at elevated temperature so as to convert said short chain olefins to higher hydrocarbons. The invention also provides an apparatus for carrying out the process and recovering the catalyst for reuse.
    Type: Application
    Filed: January 6, 2003
    Publication date: September 11, 2003
    Inventor: Francois Benjamin Du Toit