[12] Patent
[11] Patent No.:GC0009465  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/142433
Date of the Decision to Grant the Patent:27/Dec/2018

[21] Application No.:GC 2013-24099

[22] Filing Date:15/4/2013

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- Rainald Forbert،2- Stefan Hauke ‏،3- Ralph Joh،4- Markus Kinzl،5- Rudiger Schneider

[73] Owner: Siemens Aktiengesellschaft, Wittelsbacherplatz 2, 80333, Munchen, Germany

[74] Agent: Saba & Co. T.M.P




Int. Cl.: B01D 53/14 (2006.01)

[56] Cited Documents:

-US 2004253159 A1 (HAKKA LEO E [CA] ET AL) 16 December 2004
-EP 2409755 A1 (SIEMENS AG [DE]) 25 January 2012
-EP 0040892 A1 (UNION CARBIDE CORP [US]) 2 December 1981
-US 2007148068 Al (BURGERS KENNETH L [US] ET AL) 28 June 2007
-US 3799749 A (MOYER J ET AL) 26 March 1974
-US 3530924 A (DOMNING HANS) 29 September 1970
Examiner: Ali Ahmed Almulla

[57] Abstract: A device (2) for separating off carbon dioxide, in particular from a flue gas (RG) of a fossil-fuelled power plant, is specified, comprising an absorption unit (4), a desorption unit (5) assigned to the absorption unit (4) and a separation unit (10) for separating off salts from a scrubbing solution. In this case the absorption unit (4) and the desorption unit (5) are connected to each other via a first conduit (6) for a regenerated scrubbing solution (A) and a second conduit (7) for a loaded scrubbing solution (A’). The separation unit (10) comprises a crystallizer (20) for forming salt crystals and a first separator unit (25) on the downstream side thereof for separating off the salt crystals. In addition, a corresponding method for operating the device (2) for separating off carbon dioxide is specified. Furthermore, a separation unit (10) is specified for separating off salts from a scrubbing solution (10), which separation unit (10) comprises a crystallizer (20) and a first separator unit (25) downstream thereof for separating off salt crystals. The crystallizer (20) comprises a crystallization chamber (21) for forming the salt crystals and a countercurrent classifier (22) for separating the salt crystals according to their particle size. A first branch conduit (32) is connected to the crystallization chamber (21), which first branch conduit (32) opens out into the countercurrent classifier (22) via a second separator unit (26).
No. of claims: 15     No. of figures: 1


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