[12] Patent
[11] Patent No.:GC0009405  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141857
Date of the Decision to Grant the Patent:18/Dec/2018

[21] Application No.:GC 2011-17950

[22] Filing Date:13/3/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
15/3/2010
12/724.300

[72] Inventors:1- Abdennour BOURANE ،2- Omer Refa KOSEOGLU ،3- Mohammed Ibrahim KATHEERI

[73] Owner: Saudi Arabian Oil Company , P.O.BOX 5000, Dhahran 31311, Saudi Arabia

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

  

 

  

[51]IPC:
Int. Cl.: C10G 49/00 (2006.01)

[56] Cited Documents:

-US 20020035306 A1 (GORE et al.) 21 March 2002
-US 20020029997 A1 (RAPPAS et al.) 14 March 2002
-US 7309416 B2 (FOKEMA et al.) 18 December 2007
 
Examiner: Bander M. Al-Thobity

[54] MILD HYDRODESULFURIZATION INTEGRATING TARGETED OXIDATIVE DESULFURIZATION TO PRODUCE DIESEL FUEL HAVING AN ULTRA-LOW LEVEL OF ORGANOSULFUR COMPOUNDS
[57] Abstract: Deep desulfurization of hydrocarbonfeedscontaining undesired organosulfur compounds to produce a hydrocarbon product having low levels of sulfur, i.e., 15 ppmw or less of sulfur, is achieved by first contacting the entire feed with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions to remove the labile organosulfur compounds. A flashing column downstream of the hydrodesulfurization reaction zone fractionates the effluent at a targetcut point temperatureto obtain two hydrocarbonfuel fractions. A first fraction boiling at or above the target cut point temperature contains the remaining refractory organosulfur compounds. A second fraction boiling below the target cut point temperature is substantially free of organosulfur compounds, since the organosulfur compounds boiling in the range of this fraction were the labile organosulfur compounds which were initially removed by mild hydrodesulfurization. The first fraction is contacted with an oxidizing agent and an active metal catalyst in an oxidation reaction zone to convert the refractory organosulfur compounds to oxidized organosulfur compounds. These oxidized organosulfur compounds are subsequently removed, producing a stream containing an ultra-low levelof organosulfur compounds. The two streams can be combined to obtain a full range hydrocarbon product having an ultra-low level of organosulfur compounds.
No. of claims: 22     No. of figures: 3


 

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