[12] Patent
[11] Patent No.:GC0007518  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/125465
Date of the Decision to Grant the Patent:04/Apr/2018

[21] Application No.:GC 2015-28730

[22] Filing Date:4/1/2015

[30] Priority:

[33] State [32] Priority date [31] Priority No.
EP
7/1/2014
14000042.3

[72] Inventors:1- Helmut Fritz،2- Andreas Peschel

[73] Owner: Linde Aktiengesellschaft, Klosterhofstr. 1 80331, Munchen, Germany

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

  

 

  

[51]IPC:
Int. Cl.: B01D 3/14, 5/00, 53/14; C07C 41/34, 41/42, 43/04; F25J 3/06 (2006.01)

[56] Cited Documents:

-US 5 908 963 A (VOSS BODIL [DK] ET AL)1. June 1999
-US 2009/156698 A1 (ROSTRUP-NIELSEN THOMAS[DK] ET AL) 18. June 2009
-CN 101 607 873 A (UNIV EAST CHINASCI&TECHNOLOGY)23. December 2009
 
Examiner: Eng. Sattam M.AlMutairi

[54] SEPARATION TECHNOLOGY PROCESSING OF A GAS MIXTURE FORMED FROM A PRODUCT STREAM OF A DIMETHYL ETHER REACTOR
[57] Abstract: A method for the processing, by separation technology, of a gas mixture (k) which is formed from a product stream (d) of a reactor (4) for synthesising dimethyl ether from synthesis gas (b), and which contains at least dimethyl ether, carbon dioxide and at least one other component which is lower-boiling than carbon dioxide, is proposed. The gas mixture (k) is cooled at a first pressure level from a first temperature level to a second temperature level and a fraction of the gas mixture (k) that remains in gaseous form at the second temperature level is washed in an absorption column (16) with a reflux (v) predominantly containing carbon dioxide. The reflux (v) predominantly containing carbon dioxide is at least partially formed from a fraction of the gas mixture (k) which is separated in liquid form during the cooling.(Figure 2)
No. of claims: 12     No. of figures: 2


 

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