[12] Patent
[11] Patent No.:GC0010779  
[45] Date of Publishing the Grant of the Patent: //                0/  
Number of the Decision to Grant the Patent:2020/162046
Date of the Decision to Grant the Patent:20/Jan/2020

[21] Application No.:GC 2015-35261

[22] Filing Date:15/4/2015

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
16/4/2014
61/980,089

[72] Inventors:1- BALLAGUET, Jean-Pierre R.،2- VAIDYA, Milind M.،3- DUVAL, Sebastien A.،4- HARALE, Aadesh،5- KHAWAJAH, Anwar H.،6- TAMMANA, Veera V. R.

[73] Owner: SAUDI ARABIAN OIL COMPANY, 1 Eastern Avenue, 31311 , Dhahran , Saudi Arabia

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: B01D 53/22, C01B 17/04 (2006.01)

[56] Cited Documents:

-US 4589896 A (Michael S. K. Chen, Stephen P. Goff, James VanOmmeren) 20 May 1986
-US 4659343 A (Ralph M. Kelly) 21 April 1987
-US 4978439 A (Peter J. H. Carnell, Patrick J. Denny) 18 December 1990
-US 5558698 A (Richard W. Baker, Kaaeid A. Lokhandwala) 24 September 1996
-US 2009092524 A1 (Ravi Ravikumar, Gordon Sims, Harold Sandler) 9 April 2009
-US 2013245351 A (Mohammad N. Al-Haji) 19 September 2013
 
Examiner: Eng. Ebrahim AlQurashi

[54] IMPROVED SULFUR RECOVERY PROCESS FOR TREATING LOW TO MEDIUM MOLE PERCENT HYDROGEN SULFIDE GAS FEEDS WITH BTEX IN A CLAUS UNIT
[57] Abstract: IMPROVED SULFUR RECOVERY PROCESS FOR TREATING LOW TO MEDIUM MOLE PERCENT HYDROGEN SULFIDE GAS FEEDS WITH BTEX IN A CLAUS UNITABSTRACTAn enrichment apparatus and process for enriching a hydrogen sulfide concentration in an acid gas stream to create a hydrogen sulfide rich stream for feed to a Claus. The enrichment apparatus comprises a hydrocarbon selective separation unit operable to separate the acid gas stream into a hydrocarbon rich stream and a purified acid gas stream, wherein the acid gas stream comprises hydrogen sulfide, carbon dioxide, and hydrocarbons, a hydrogen sulfide selective separation unit operable to separate the purified acid gas stream to create the hydrogen sulfide rich stream and a hydrogen sulfide lean stream, the hydrogen sulfide rich stream having a concentration of hydrogen sulfide, and the Claus unit operable to recover sulfur from the carbon dioxide lean stream. The enrichment apparatus can include a carbon dioxide selective separation unit in fluid communication with the hydrogen sulfide selective separation unit, operable to separate the hydrogen sulfide rich stream.
No. of claims: 30     No. of figures: 7


 

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