Patents Assigned to Union Engineering A/S
  • Patent number: 11397049
    Abstract: A purification system for recovering carbon dioxide from a gaseous carbon dioxide stream originating from a fermentation process, brewery or a bottling line is provided. The purification system includes a compressor in fluid communication with an absorber. The compressor provides a compressed gaseous stream at a predetermined pressure and the absorber separates the compressed gaseous stream into a carbon dioxide rich gaseous stream and a contaminant rich stream. A condenser is designed to operate at a pressure of at least 30 bar and is designed to separate the carbon dioxide rich gaseous stream into a condensate and a purge gas. A distillation column is configured to separate the condensate into a second purge gas and a purified carbon dioxide stream.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 26, 2022
    Assignee: UNION ENGINEERING A/S
    Inventors: Rasmus Find, Jan Flensted Poulsen
  • Patent number: 10730007
    Abstract: The present invention relates to a method for recovering acid gas from an absorbent rich on gaseous acid gas, in which the energy used for separation of absorbent and acid in a stripping column is reduced by recycling heat transfer fluid from the stripper off gas in an energy efficient manner. The invention further relates to a plant suitable for carrying out said method.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 4, 2020
    Assignee: UNION ENGINEERING A/S
    Inventors: Rasmus Find, Jan Flensted Poulsen
  • Patent number: 10315154
    Abstract: The present invention relates to a method for recovering carbon dioxide from an absorbent rich on gaseous carbon dioxide, in which the energy used for separation of absorbent and carbon dioxide in a stripping column is reduced by using two stripper columns having different operating pressures and recycling heat transfer fluid from the stripper off gas in an energy efficient manner.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: June 11, 2019
    Assignee: Union Engineering A/S
    Inventors: Rasmus Find, Jan Flensted Poulsen
  • Patent number: 9851143
    Abstract: The present invention relates to a method for recovering carbon dioxide from a gaseous stream originating from a fermentation process by compression, absorption, condensation and distillation, wherein at least the absorption and condensation is performed under a high pressure of at least 30 bar.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: December 26, 2017
    Assignee: Union Engineering A/S
    Inventors: Rasmus Find, Jan Flensted Poulsen
  • Publication number: 20170227285
    Abstract: The present invention relates to an improved method for removing contaminants from a gaseous stream substantially comprising carbon dioxide. More specifically, the method comprises the step of subjecting the gaseous stream to an absorption step in which the absorbent is liquid carbon dioxide wherein the waste of carbon dioxide is minimized by utilizing a compressing means for generating a pressure difference between two streams in a reboiler.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 10, 2017
    Applicant: Union Engineering A/S
    Inventor: Rasmus Find
  • Patent number: 9545595
    Abstract: The present invention relates to a method for recovery of high purity carbon dioxide from a gaseous source and uses thereof. More specifically, the present invention relates to the production of high purity carbon dioxide, which is substantially free of nitrogen, oxygen, nitrogen oxides, sulphurous compounds and volatile organic contaminants, particularly benzene. The present invention also relates to a method for removal of benzene from a carbon dioxide feeding gas as well as the use of said high purity carbon dioxide in foodstuffs.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 17, 2017
    Assignee: UNION ENGINEERING A/S
    Inventor: Rasmus Find
  • Patent number: 8801836
    Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas (G3), in particular the present invention relates to a method for recovery of carbon dioxide using a process gas (G1) heated reboiler (A1) for carbon dioxide removal in a stripper (A3).
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: August 12, 2014
    Assignee: Union Engineering A/S
    Inventor: Rasmus Find
  • Publication number: 20140190206
    Abstract: The present invention relates to a method for removing at least one contaminant from a gaseous stream substantially comprising carbon dioxide. More specifically said method includes the step of subjecting the gaseous stream to an absorption step in which the absorbent is liquid carbon dioxide.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: UNION ENGINEERING A/S
    Inventors: Rasmus Find, Jan Flensted Poulsen
  • Patent number: 8652236
    Abstract: The present invention describes a method for recovery of high purity carbon dioxide, which is substantially free of nitrogen oxides. This high purity carbon dioxide is obtained by introducing into the method a step in which carbon dioxide absorbed in an absorbing agent is flashed. The present invention also discloses a plant for recovery of said high purity carbon dioxide comprising an absorption column, a flash column, a stripper column, and a down stream purification unit comprising a washing column, a dehydrator, a condenser and a distillation unit.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: February 18, 2014
    Assignee: Union Engineering A/S
    Inventors: Rasmus Find, Svend Geleff, Maj Toft Andersen
  • Patent number: 8529854
    Abstract: The present invention relates to a new process for removal of carbon dioxide from a feed gas, wherein the feed gas is fed to and concentrated in a stripper column (A) before condensation of the gaseous carbon dioxide. The present invention also relates to different uses of the removed carbon dioxide and to a plant for removal of carbon dioxide from the feed gas.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: September 10, 2013
    Assignee: Union Engineering A/S
    Inventor: Rasmus Find
  • Patent number: 8475566
    Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas stream. The method is a two-step method in which carbon dioxide is compressed in the first step, while the residual carbon dioxide is recovered by an absorption process in a subsequent step. The present invention also relates to the use of the method for the recovery of carbon dioxide and a plant for recovery of carbon dioxide.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 2, 2013
    Assignee: Union Engineering A/S
    Inventor: Rasmus Find
  • Publication number: 20130152628
    Abstract: The present invention relates to an improved method for removing contaminants from a gaseous stream substantially comprising carbon dioxide. More specifically, the method comprises the step of subjecting the gaseous stream to an absorption step in which the absorbent is liquid carbon dioxide wherein the waste of carbon dioxide is minimized by utilizing a compressing means for generating a pressure difference between two streams in a reboiler.
    Type: Application
    Filed: June 17, 2010
    Publication date: June 20, 2013
    Applicant: UNION ENGINEERING A/S
    Inventor: Rasmus Find
  • Publication number: 20130133363
    Abstract: The present invention relates to a method for recovering carbon dioxide from a gaseous stream originating from a fermentation process by compression, absorption, condensation and distillation, wherein at least the absorption and condensation is performed under a high pressure of at least 30 bar.
    Type: Application
    Filed: July 1, 2011
    Publication date: May 30, 2013
    Applicant: UNION ENGINEERING A/S
    Inventors: Rasmus Find, Jan Flensted Poulsen
  • Publication number: 20120006197
    Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas (G3), in particular the present invention relates to a method for recovery of carbon dioxide using a process gas (G1) heated reboiler (A1) for carbon dioxide removal in a stripper (A3).
    Type: Application
    Filed: February 1, 2010
    Publication date: January 12, 2012
    Applicant: UNION ENGINEERING A/S
    Inventor: Rasmus Find
  • Patent number: 7829049
    Abstract: The present invention describes a method for recovery of high purity carbon dioxide, which is substantially free of nitrogen oxides. The present invention also discloses a plant for recovery of said high purity carbon dioxide comprising an absorption column, a flash column, a stripper column, and a purification unit.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: November 9, 2010
    Assignee: Union Engineering A/S
    Inventors: Rasmus Find, Svend Geleff, Maj Toft Andersen
  • Publication number: 20100101415
    Abstract: The present invention describes a method for recovery of high purity carbon dioxide, which is substantially free of nitrogen oxides. This high purity carbon dioxide is obtained by introducing into the method a step in which carbon dioxide absorbed in an absorbing agent is flashed. The present invention also discloses a plant for recovery of said high purity carbon dioxide comprising an absorption column, a flash column, a stripper column, and a down stream purification unit comprising a washing column, a dehydrator, a condenser and a distillation unit.
    Type: Application
    Filed: January 16, 2008
    Publication date: April 29, 2010
    Applicant: UNION ENGINEERING A/S
    Inventors: Rasmus Find, Svend Geleff, Maj Toft Andersen