[12] Patent
[11] Patent No.:GC0009334  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141354
Date of the Decision to Grant the Patent:11/Dec/2018

[21] Application No.:GC 2014-28261

[22] Filing Date:4/11/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
EP
14/11/2013
13005355.6

[72] Inventors:1- Tobias SinnŲŒ2- Helmut Fritz

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

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

  

 

  

[51]IPC:
Int. Cl.: C07C 7/04; C10G 9/36 (2006.01)

[56] Cited Documents:

-US 5 372 009 A (KAUFMAN ERIC A [US] ET AL) 13 December 1994
-US 5 361 589 A (HOWARD LEE JARVIS [US] ET AL) 8 November 1994
-EP 2 336 272 Al (TOTAL PETROCHEMICALS RES FE LUY [BE]) 22 June 2011
 
Examiner: Ali Ahmed Almulla

[54] METHOD FOR SEPARATING OUT A HYDROCARBON MIXTURE, SEPARATION SYSTEM, STEAM CRACKING SYSTEM AND METHOD FOR RETROFITTING A STEAM CRACKING SYSTEM
[57] Abstract: The invention relates to a method for separating a hydrocarbon mixture (C), which is obtained at least in part by steam cracking (10) and which contains at least hydrocarbons having one, two and three carbon atoms, including ethane and ethylene, a first fraction (C2+, C2-) initially being obtained from the hydrocarbon mixture (C) by separating off other components at least in part, said fraction containing the predominant part of the hydrocarbons having two or more carbon atoms previously contained in the hydrocarbon mixture (C) or the predominant part of the hydrocarbons having two or fewer carbon atoms previously contained in the hydrocarbon mixture (C), further fractions (C1, C2, C2H4, C3+, C2H6) subsequently being obtained from the first fraction (C2+, C2-). A fraction (R, S) containing ethane is separated off, in parallel with or downstream from the at least partial separation of the other components from the hydrocarbon mixture (C), in an amount which reduces the ethane content in the first fraction (C2+, C2-) to less than 25%, the fraction (R, S) containing ethane being low in or free from other hydrocarbons having two carbon atoms. The present invention further relates to a separation system (30), to a corresponding steam cracking system and to a method for retrofitting a steam cracking system.(Fig. 3)
No. of claims: 12     No. of figures: 5


 

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