[12] Patent
[11] Patent No.:GC0004522  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2016                32/2016  
Number of the Decision to Grant the Patent:2016/89599
Date of the Decision to Grant the Patent:15/Dec/2016

[21] Application No.:GCC/P/2008/9926

[22] Filing Date:12/1/2008

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
19/1/2007
60/881,391

[72] Inventors:1- Vikram Singh،2- P. Scott Northrop،3- Narasimhan Sundaram،4- Edward J. Grave

[73] Owner: ExxonMobil Upstream Research Company, P.O. Box 2189, Houston, Texas, USA

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
F25D 25/00

[56] Cited Documents:

-US 6.053.007 (AMCTORY at al.) 25 April 2000
-US 200210006371 A1 (WATSON et al.) 17 January 2002
-US 200610137967 A1 (KISTER at al) 29 June 2006
-US 6,082,373 A (SAKUBA: at al.) 04 July 2000
-US 2,621,210 A (WHITE) 09 December 1952
-US 5.960.985 A (‘NOO’I‘TENJ) 12 Octobar 1999
-US 3.767.766 A (TJOA at al.) 23 October 1973
-US 5.233.837 A (CALLAHAN) 10 August 1993
 
Examiner: Eng. Ebrahim AlQurashi

[54] INTEGRATED CONTROLLED FREEZE ZONE CFZ TOWER AND DIVIDING WALL DWC FOR ENHANCED HYDROCARBON RECOVERY
[57] Abstract: The present invention relates to methods and apparatuses for the operation of a distillation tower containing a controlled freezing zone and at least one distillation section. The process and tower design are utilized for the additional recovery of hydrocarbons from an acid gas. In this process, a separation process is utilized in which a multi-component feedstream is introduced into an apparatus that operates under solids forming conditions for at least one of the feedstream components. The freezable component, although typically CO2, H2S, or another acid gas, can be any component that has the potential for forming solids in the separation system. A dividing wall is added to at least a portion of the lower distillation section of the apparatus to effect the separation of at least some fraction of the hydrocarbons in that portion of the tower.
No. of claims: 24     No. of figures: 4


 

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