Patents by Inventor Tobias Wittmann

Tobias Wittmann 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: 20170247255
    Abstract: A process for recovering carbonized lignin having a defined grain size distribution from a lignin-containing liquid is provided. The lignin-containing liquid is subjected to a hydrothermal carbonization to convert the lignin into a carbonized lignin and the carbonized lignin is separated from the liquid containing the carbonized lignin. The lignin-containing liquid is subjected to a hydrothermal carbonization at temperatures in the range from about 150° C. to about 280° C. and by adapting the H+ ion concentration in the lignin-containing liquid before and/or during the hydrothermal carbonization the grain size distribution of the carbonized lignin is adjusted.
    Type: Application
    Filed: August 4, 2015
    Publication date: August 31, 2017
    Applicant: SUNCOAL INDUSTRIES GMBH
    Inventor: Tobias WITTMANN
  • Patent number: 9669861
    Abstract: The steering column adjusting device for vehicles, preferably commercial vehicles, has a basic unit, with respect to which an adjusting unit is adjustable. With the adjusting unit, a steering spindle can be adjusted. In its respective position, the adjusting unit can be clamped with respect to the basic unit with at least one clamping device. The clamping device is pivotably mounted on the adjusting unit.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: June 6, 2017
    Assignee: Willi Elbe Gelenkwellen GmbH & Co. KG
    Inventors: Ralf Sedlmeier, Jörg Hauhoff, Olaf Beuermann, Tomasz Spyra, Tobias Wittmann
  • Publication number: 20170101430
    Abstract: Lignin-rich starting material is suspended in a first medium, which is acidic and aqueous, to form a aqueous acidic suspension, which is heated and allowed to form two continuous phases, a thermoplastic lignin phase and an aqueous phase. The thermoplastic lignin phase is separated from the aqueous phase and passed through a shape giving process into a second medium which is at a temperature lower than that of the thermoplastic lignin phase and in which the thermoplastic lignin phase is essentially insoluble. Solid lignin formed in the second medium is recovered.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 13, 2017
    Applicant: Valmet Technologies Oy
    Inventors: Eric Enqvist, Ville Tarvo, Panu Tikka, Tobias Wittmann, Henrik Wallmo, Anders Littorin
  • Publication number: 20160297466
    Abstract: The steering column adjusting device for vehicles, preferably commercial vehicles, has a basic unit, with respect to which an adjusting unit is adjustable. With the adjusting unit, a steering spindle can be adjusted. In its respective position, the adjusting unit can be clamped with respect to the basic unit with at least one clamping device. The clamping device is pivotably mounted on the adjusting unit.
    Type: Application
    Filed: August 20, 2015
    Publication date: October 13, 2016
    Inventors: Ralf Sedlmeier, Jörg Hauhoff, Olaf Beuermann, Tomasz Spyra, Tobias Wittmann
  • Publication number: 20160200754
    Abstract: The invention relates to a method for extracting undissolved carbonized lignin from black liquor and products produced thereby. The invention further relates to the solid carbon thus extracted and the carbonized black liquor separated from said solid carbon. According to the invention black liquor from an alkaline fractionation process is subjected to a hydrothermal carbonization process, an undissolved carbonized lignin is separated from the carbonized black liquor, the remaining carbonized black liquor is fed back into the alkaline fractionation process, and the undissolved carbonized lignin is separated from the carbonized black liquor is purified.
    Type: Application
    Filed: August 8, 2014
    Publication date: July 14, 2016
    Inventors: Tobias WITTMANN, Isabella RICHTER
  • Patent number: 9340440
    Abstract: The invention relates to a method for the treatment of process water which is obtained in a plant for the hydrothermal carbonization of renewable raw materials and organic residual materials by an evaporation of process water, a condensation of the washed process steam, and a biological treatment of the process steam condensate as partial quantity or possibly as total quantity of the amount of waste water discharged from an HTC plant.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 17, 2016
    Assignee: SUNCOAL INDUSTRIES GMBH
    Inventor: Tobias Wittmann
  • Patent number: 9109180
    Abstract: The present invention relates to a continuous method for the hydrothermal carbonization of renewable raw materials and organic residues, in which, in a first processing stage, a pressure increase essentially to the pressure level of the carbonization occurs, in the second processing stage, the carbonization, which is performed at a pressure of at least 5 bar and at most boiling temperature, the obtained carbonized product is at least partially settled as sediment, and the filling height of the water in the second processing stage is set by removing water, and the temperature of the sediment delivered from the second processing stage is reduced by the vaporization of water and it is supplied to the third processing stage, drying which is heated using steam, in which the drying is performed in steam atmosphere, and subsequently discharged from the process.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 18, 2015
    Assignee: SUNCOAL INDUSTRIES GMBH
    Inventors: Bodo M. Wolf, Tobias Wittmann, Christian Von Olshausen
  • Publication number: 20130306553
    Abstract: The invention relates to a method for the treatment of process water which is obtained in a plant for the hydrothermal carbonization of renewable raw materials and organic residual materials by an evaporation of process water, a condensation of the washed process steam, and a biological treatment of the process steam condensate as partial quantity or possibly as total quantity of the amount of waste water discharged from an HTC plant.
    Type: Application
    Filed: January 27, 2012
    Publication date: November 21, 2013
    Applicant: SUNCOAL INDUSTRIES GmbH
    Inventor: Tobias Wittmann
  • Publication number: 20120103040
    Abstract: The present invention relates to a continuous method for the hydrothermal carbonization of renewable raw materials and organic residues, in which, in a first processing stage, a pressure increase essentially to the pressure level of the carbonization occurs, in the second processing stage, the carbonization, which is performed at a pressure of at least 5 bar and at most boiling temperature, the obtained carbonized product is at least partially settled as sediment, and the filling height of the water in the second processing stage is set by removing water, and the temperature of the sediment delivered from the second processing stage is reduced by the vaporization of water and it is supplied to the third processing stage, drying which is heated using steam, in which the drying is performed in steam atmosphere, and subsequently discharged from the process.
    Type: Application
    Filed: April 1, 2010
    Publication date: May 3, 2012
    Inventors: Bodo M. Wolf, Tobias Wittmann, Christian Von Olshausen