Patents by Inventor Johannes Willem Van Zyl

Johannes Willem Van Zyl 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: 9962709
    Abstract: A method and apparatus for separating magnetic material from a slurry is disclosed, the method including the steps of providing a first moving surface, depositing the slurry onto the first moving surface, attracting at least a portion of the magnetic material of the slurry onto the first moving surface by first magnetic means, arranging the first moving surface such that liquid from the slurry is removed due to the portion of the magnetic material being attracted to the moving surface by the first magnetic means to form a magnetic material cake, separating an inner portion of the magnetic material cake from an outer portion of the magnetic material cake, with respect to the first moving surface, such that the inner portion has a lower liquid content than the outer portion.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 8, 2018
    Assignee: STEINERT AUSTRALIA PTY LTD
    Inventor: Johannes Willem Van Zyl
  • Publication number: 20160030947
    Abstract: A method and apparatus for separating magnetic material from a slurry is disclosed, the method including the steps of providing a first moving surface, depositing the slurry onto the first moving surface, attracting at least a portion of the magnetic material of the slurry onto the first moving surface by first magnetic means, arranging the first moving surface such that liquid from the slurry is removed due to the portion of the magnetic material being attracted to the moving surface by the first magnetic means to form a magnetic material cake, separating an inner portion of the magnetic material cake from an outer portion of the magnetic material cake, with respect to the first moving surface, such that the inner portion has a lower liquid content than the outer portion.
    Type: Application
    Filed: April 4, 2014
    Publication date: February 4, 2016
    Applicant: STEINERT AUSTRALIA PTY LTD
    Inventor: Johannes Willem Van Zyl
  • Patent number: 9051517
    Abstract: A method (100) of recovering tar from the gasification of a carbonaceous feedstock includes gasifying (12) a carbonaceous feedstock (14) to produce a raw gas (20) which includes at least CO, H2, tar and entrained solids, the raw gas (20) being at a temperature of at least 250° C. and a pressure of at least 15 bar (g). The raw gas (20) is quenched and washed (22) with a quench liquid (24) producing a solids-containing liquid stream (32) which includes tars, the solids-containing liquid stream being at a temperature of at least 150° C. and a pressure of at least 15 bar (g). Solids (56) are separated (46) from the solids-containing liquid stream (32) to provide a tar recovery stream (102). The tar recovery stream (102) is treated by at least cooling (34) and pressure expansion (36) thereof to produce a tar stream (58).
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: June 9, 2015
    Assignee: SASOL TECHNOLOGY (PROPRIETARY) LIMITED
    Inventors: Gerhard Gustav Schmitt, Paul Smit Baumann, Johannes Willem Van Zyl
  • Publication number: 20130303636
    Abstract: A method (100) of recovering tar from the gasification of a carbonaceous feedstock includes gasifying (12) a carbonaceous feedstock (14) to produce a raw gas (20) which includes at least CO, H2, tar and entrained solids, the raw gas (20) being at a temperature of at least 250° C. and a pressure of at least 15 bar (g). The raw gas (20) is quenched and washed (22) with a quench liquid (24) producing a solids-containing liquid stream (32) which includes tars, the solids-containing liquid stream being at a temperature of at least 150° C. and a pressure of at least 15 bar (g). Solids (56) are separated (46) from the solids-containing liquid stream (32) to provide a tar recovery stream (102). The tar recovery stream (102) is treated by at least cooling (34) and pressure expansion (36) thereof to produce a tar stream (58).
    Type: Application
    Filed: December 21, 2011
    Publication date: November 14, 2013
    Inventors: Gerhard Gustav Schmitt, Paul Smit Baumann, Johannes Willem Van Zyl