Patents by Inventor Benjamin Hafner

Benjamin Hafner 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: 10569216
    Abstract: A device for separating carbon dioxide from a gas stream, in particular from a flue gas stream, includes an absorber for separating the carbon dioxide from the gas stream by means of a washing medium, a desorber which is fludically connected to the absorber to release the absorbed carbon dioxide from the washing medium, a gas cooler which is fludically connected upstream of the absorber to cool the gas stream, and a processing unit which is connected downstream of the gas cooler and which is equipped and designed to clean water from the gas cooler. A method separates carbon dioxide from a gas stream.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: February 25, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Benjamin Häfner, Albert Reichl, Tim Rogalinski, Henning Schramm, Jörg Weber
  • Patent number: 10537846
    Abstract: A method for separating carbon dioxide from a gas stream, in particular from a flue gas stream, wherein, a gas stream is brought into contact with a washing medium in an absorber of a separation device and the carbon dioxide contained in the gas stream is separated; the charged washing medium is supplied to a desorber of the separation device to release the carbon dioxide; a vapor stream is removed from the desorber and is supplied to a cooling unit to form a condensate; degradation products, in particular nitrosamines, contained in at least a partial stream of the condensate are photolytically decomposed to decomposition products; at least the decomposition products, in particular nitrites and amines, are removed; and at least a partial stream of the condensate is returned to the desorber. A corresponding separation device separates carbon dioxide from a gas stream.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 21, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Benjamin Häfner, Ansgar Kursawe, Albert Reichl, Torsten Schliepdiek, Rüdiger Schneider, Henning Schramm
  • Patent number: 10213728
    Abstract: A method for separating carbon dioxide from a gas flow, in particular from a flue gas flow, where a gas flow is brought in contact with a scrubbing medium in an absorber of a separating device and carbon dioxide contained in the gas flow is separated, the loaded scrubbing medium is fed to a desorber of the separating device in order to release the carbon dioxide, a vapor flow is drawn from the desorber and is fed to a cooling device in order to form condensate, and the condensate formed in the cooling device is at least partially fed to a purifying device, in which degradation products contained in the condensate are removed by reverse osmosis and/or by an ion exchanger. A separating device is adapted for separating carbon dioxide from a gas flow.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: February 26, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Benjamin Hafner, Ansgar Kursawe, Albert Reichl, Rudiger Schneider, Henning Schramm
  • Publication number: 20170120186
    Abstract: A device for separating carbon dioxide from a gas stream, in particular from a flue gas stream, includes an absorber for separating the carbon dioxide from the gas stream by means of a washing medium, a desorber which is fludically connected to the absorber to release the absorbed carbon dioxide from the washing medium, a gas cooler which is fludically connected upstream of the absorber to cool the gas stream, and a processing unit which is connected downstream of the gas cooler and which is equipped and designed to clean water from the gas cooler. A method separates carbon dioxide from a gas stream.
    Type: Application
    Filed: March 24, 2015
    Publication date: May 4, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Benjamin Häfner, Albert Reichl, Tim Rogalinski, Henning Schramm, Jörg Weber
  • Publication number: 20170120185
    Abstract: A method for separating carbon dioxide from a gas stream, in particular from a flue gas stream, wherein, a gas stream is brought into contact with a washing medium in an absorber of a separation device and the carbon dioxide contained in the gas stream is separated; the charged washing medium is supplied to a desorber of the separation device to release the carbon dioxide; a vapor stream is removed from the desorber and is supplied to a cooling unit to form a condensate; degradation products, in particular nitrosamines, contained in at least a partial stream of the condensate are photolytically decomposed to decomposition products; at least the decomposition products, in particular nitrites and amines, are removed; and at least a partial stream of the condensate is returned to the desorber. A corresponding separation device separates carbon dioxide from a gas stream.
    Type: Application
    Filed: March 24, 2015
    Publication date: May 4, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Benjamin Häfner, Ansgar Kursawe, Albert Reichl, Torsten Schliepdiek, Rüdiger Schneider, Henning Schramm
  • Publication number: 20160206991
    Abstract: A method for separating carbon dioxide from a gas flow, in particular from a flue gas flow, where a gas flow is brought in contact with a scrubbing medium in an absorber of a separating device and carbon dioxide contained in the gas flow is separated, the loaded scrubbing medium is fed to a desorber of the separating device in order to release the carbon dioxide, a vapor flow is drawn from the desorber and is fed to a cooling device in order to form condensate, and the condensate formed in the cooling device is at least partially fed to a purifying device, in which degradation products contained in the condensate are removed by reverse osmosis and/or by an ion exchanger. A separating device is adapted for separating carbon dioxide from a gas flow.
    Type: Application
    Filed: June 12, 2014
    Publication date: July 21, 2016
    Applicant: Siemens Aktiengesellschaft
    Inventors: Benjamin Hafner, Ansgar Kursawe, Albert Reichl, Rudiger Schneider, Henning Schramm