Patents Assigned to Lentjes GmbH
  • Patent number: 9776128
    Abstract: A scrubber tower of a flue gas purification device, comprising: a flue gas entrance and a flue gas exit, a liquid entrance and a liquid exit, a contact area for said flue gas and said liquid between said flue gas entrance and said liquid entrance, at least one tray installation positioned within said contact area and across at least 50% of a horizontal extension of said contact area. The tray installation provides a multiplicity of through openings for said flue gas and said liquid respectively, which through openings being adjustable individually, in groups or all together in their respective cross sections.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: October 3, 2017
    Assignee: Doosan Lentjes GmbH
    Inventors: Kai Kehrmann, Frank Oberheid, Oguzhan Narin, Annette Ziemann-Nothe
  • Publication number: 20160290632
    Abstract: Fluidized bed apparatus, comprising a circulating fluidized bed reactor with at least one outlet port at its upper part, wherein said outlet port allows a mixture of gas and solid particles exhausted from the fluidized bed reactor to flow into a number (n) of associated separators for separating solid particles from said gas, a number (n) of means to transfer said separated solid particles from said (n) separators into a number (up to n) of discrete fluidized bed heat exchangers (24.1, 24.2, 24.3), and return means to transport at least part of said solid particles back from said discrete fluidized bed heat exchangers (24) into the circulating fluidized bed reactor, wherein the number (up to n) of discrete fluidized bed heat exchangers (24.1, 24.2, 24.3) are mechanically connected to provide one common fluidized bed heat exchanger (24)mwith water cooled intermediate walls (24i) between adjacent discrete fluidized bed heat exchangers (24.1, 24.2, 24.3).
    Type: Application
    Filed: August 15, 2014
    Publication date: October 6, 2016
    Applicant: DOOSAN LENTJES GmbH
    Inventors: Klaus-Dieter Pohl, Peter Blattermann, Peter Koch, Oguzhan Narin
  • Publication number: 20160281977
    Abstract: An air distribution nozzle and fluidized bed including said nozzle, the nozzle including a gas inlet pipe and an air distribution cap defining a space inbetween them, first air outlet means allowing air to flow from the gas inlet pipe to the space and second outlet means allowing air to flow from said space to the ambient area, wherein said second outlet means has an outer cross section along the outer surface of the cap that varies in its vertical height along its horizontal extension.
    Type: Application
    Filed: October 9, 2014
    Publication date: September 29, 2016
    Applicant: Doosan Lentjes GmbH
    Inventors: Thorsten Friedrich KOPPERS, Oguzhan NARIN
  • Patent number: 9421494
    Abstract: The invention relates to a flue gas purification device with a scrubber tower (10), also called a scrubbing tower, a washing tower or an absorption tower.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: August 23, 2016
    Assignee: DOOSAN LENTJES GMBH
    Inventors: Annette Ziemann-Nothe, Aat Pelkmann
  • Publication number: 20160199776
    Abstract: A scrubber tower of a flue gas purification device, comprising: a flue gas entrance and a flue gas exit, a liquid entrance and a liquid exit, a contact area for said flue gas and said liquid between said flue gas entrance and said liquid entrance, at least one tray installation positioned within said contact area and across at least 50% of a horizontal extension of said contact area. The tray installation provides a multiplicity of through openings for said flue gas and said liquid respectively, which through openings being adjustable individually, in groups or all together in their respective cross sections.
    Type: Application
    Filed: June 26, 2014
    Publication date: July 14, 2016
    Applicant: Doosan Lentjes GmbH
    Inventors: Kai Kehrmann, Frank Oberheid, Oguzhan Narin, Annette Ziemann-Nothe
  • Publication number: 20120085240
    Abstract: The invention relates to a scrubber tower of a flue gas purification device as well as a flue gas purification device including a corresponding scrubber tower.
    Type: Application
    Filed: March 20, 2010
    Publication date: April 12, 2012
    Applicant: AE & E LENTJES GMBH
    Inventor: Aat Pelkman
  • Patent number: 7867772
    Abstract: The present invention relates to a method for the determination of the CaCO3, content of a scrubbing liquid, which has been separated from a scrubbing liquid circuit of a scrubbing column.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: January 11, 2011
    Assignee: Lentjes GmbH
    Inventors: Helmut Westerwich, Manfred Kraus, Johannes Biernatzki
  • Patent number: 7776298
    Abstract: The invention relates to a process and a device for the removal of dust, HF, HCl, SO2, SO3, heavy metals, heavy-metal compounds, polyhalogenated hydrocarbons and polycyclic hydrocarbons from combustion flue gases by treating the pollutant-containing combustion flue gases with a sorbent in a circulating fluidized bed. The process is characterized in that the sorbent used is a mixture of Ca(OH)2, at least one naturally occurring zeolite and a carbon-containing substance, in that the treatment of the pollutant-containing combustion flue gases with the sorbent is carried out at from 120 to 180° C.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: August 17, 2010
    Assignee: Lentjes GmbH
    Inventors: Hansjörg Herden, Barbara Roth, Robert Mergler, Berthold Stegemann, Harald Sauer
  • Patent number: 7635455
    Abstract: A flue gas purification device comprising a receptacle, which has a scrubbing liquid sump comprising an oxidation device for introducing oxygen, wherein the introduction of oxygen is realized by at least one plate aerator.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: December 22, 2009
    Assignee: Lentjes GmbH
    Inventors: Christian Moser, Michael Heinke
  • Patent number: 7514054
    Abstract: A flue gas purification device includes a receptacle, which has an absorption zone, through which the supplied glue gas can flow in an essentially horizontal direction.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: April 7, 2009
    Assignee: Lentjes GmbH
    Inventors: Theo Risse, Christian Moser
  • Patent number: 7438879
    Abstract: A device provides the purification of flue gas comprising a scrubbing liquid sump divided into several basins and a pump device, which pumps the scrubbing liquid from at least one basin of the scrubbing liquid sump to scrubbing liquid nozzles.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: October 21, 2008
    Assignee: Lentjes GmbH
    Inventors: Theo Risse, Christian Moser
  • Patent number: 7288235
    Abstract: The invention relates to a method and an installation for separating sulphur dioxide from exhaust gas, wherein sea water is added to the exhaust gas in an absorption column and the sea water charged with sulphur compounds is extracted from the liquid sump of the absorption column and fresh sea water is added thereto. In order to omit the very expensive and large secondary reaction basis according to the state of the art, it is proposed to extract the liquid, which contains the bisulphates, from the liquid sump of the absorption column and to mix it with fresh sea water in a pipeline for the purpose of sulphate formation and pH adjustment (neutralization). The invention is based upon the finding that the sulphate formation and pH adjustment are completed after a reaction time comprised between 1 and 2 minutes. Thus, the large and expensive secondary reaction basin can be omitted.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: October 30, 2007
    Assignee: Lentjes GmbH
    Inventors: Andreas Schleicher, Gabriele Böhm, Matthias Küper