Patents by Inventor Jan Hendrik Scholtz

Jan Hendrik Scholtz 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: 7863492
    Abstract: This invention relates to a process for producing linear alkyl benzene and linear paraffins, the process including the steps of obtaining a hydrocarbon condensate containing olefins, paraffins and oxygenates from a low temperature Fischer-Tropsch reaction; a) fractionating a desired carbon number distribution from the hydrocarbon condensate to form a fractionated hydrocarbon condensate stream; b) extracting oxygenates from the fractionated hydrocarbon condensate stream from step a) to form a stream containing olefins and paraffins; c) alkylating the stream containing olefins and paraffins from step b) with benzene in the presence of a suitable alkylation catalyst; and d) recovering linear alkyl benzene and linear paraffin.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: January 4, 2011
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Edward Ludovicus Koper, Ivan Greager, Jan Hendrik Scholtz, Johan Pieter de Wet, Mieke Ann Desmet, Wilhelmina Jansen, Paul Jacobson
  • Patent number: 7737312
    Abstract: This invention relates to a process for producing linear alkyl benzene, the process including the steps of obtaining a hydrocarbon condensate containing olefins, paraffins and oxygenates from a low temperature Fischer-Tropsch reaction; a) fractionating a desired carbon number distribution from the hydrocarbon condensate to form a fractionated hydrocarbon condensate stream; b) extracting oxygenates from the fractionated hydrocarbon condensate stream from step (a) to form a stream containing olefins and paraffins; c) combining the stream containing olefins and paraffins from step (b) with the feed stream from step (g) to form a combined stream; d) alkylating olefins in the combined stream from step (c) with benzene in the presence of a suitable alkylation catalyst in an alkylation reactor; e) recovering linear alkyl benzene from the alkylation reactor; f) recovering unreacted paraffins from the alkylation reactor; g) dehydrogenating the unreacted paraffins in the presence of a suitable dehydrogenation catalyst
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: June 15, 2010
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Ivan Greager, Jan Hendrik Scholtz, Johan Pieter de Wet, Mieke Ann Desmet, Wilhelmina Jansen, Paul Jacobson, Luis Pablo Fidel Dancuart
  • Patent number: 7547657
    Abstract: The invention provides heat treated self-supported precipitated ?-Fe2O3-based Fischer-Tropsch catalyst particles. The catalyst particles are breakage resistant, thus inhibiting the formation of catalyst fines in the Fischer-Tropsch reactor, thereby maintaining the performance of the reactor and reducing the contamination of down stream processes and catalysts by the catalyst fines. The catalyst particles also exhibit superior synthesis performance in low temperature Fischer-Tropsch processes, e.g., slurry bed reactor processes for the production of wax and other syncrudes. The invention also provides a method for producing the particles and a process for using the particles.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: June 16, 2009
    Assignee: Sasol Technology (Pty) Ltd.
    Inventors: Rafael Luis Espinoza, Philip Gibson, Jan Hendrik Scholtz
  • Patent number: 6951893
    Abstract: The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producing said particles and a process for using said particles.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: October 4, 2005
    Assignee: Sasol Technology (Pty) Ltd
    Inventors: Rafael Luis Espinoza, Philip Gibson, Jan Hendrik Scholtz
  • Publication number: 20040072918
    Abstract: The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producing said particles and a process for using said particles.
    Type: Application
    Filed: October 2, 2003
    Publication date: April 15, 2004
    Applicant: Sasol Technology (Pty) Ltd
    Inventors: Rafael Luis Espinoza, Philip Gibson, Jan Hendrik Scholtz
  • Publication number: 20040072917
    Abstract: The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producing said particles and a process for using said particles.
    Type: Application
    Filed: October 2, 2003
    Publication date: April 15, 2004
    Applicant: Sasol Technology (Pty) Ltd
    Inventors: Rafael Luis Espinoza, Philip Gibson, Jan Hendrik Scholtz
  • Patent number: 6716790
    Abstract: The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producing particles and a process using particles.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 6, 2004
    Assignee: Sasol Technology (Pty) Ltd
    Inventors: Rafael Luis Espinoza, Philip Gibson, Jan Hendrik Scholtz