Patents Assigned to Union Engineering A/S
  • 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: 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
  • 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
  • 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