Methods for treating organic compounds and treated organic compounds

Abstract

Embodiments include processes for producing streams containing organic molecules (for example, diesel fuels and diesel fuel blending agents) including ultra-low severity hydrotreatment of at least a portion of a hydrocarbon synthesis product stream. Also, streams containing organic molecules (for example, diesel fuels and diesel fuel blending agents) produced by the processes are described.

1 . A hydroprocessed product stream wherein the hydroprocessed product stream is produced by the method comprising: 
 hydrotreating at least a portion of a hydrocarbon synthesis product stream to produce a hydroprocessed product stream; 
 wherein at least a portion of a hydrocarbon synthesis product stream comprises paraffins, olefins, and at least one heteroatomic compound:  
 wherein the hydroprocessed product stream comprises no more than an insubstantial amount of olefins; and  
 wherein a substantial amount of the heteroatoms remain attached to their parent molecules during hydrotreating.  
   
     
     
         2 . The hydroprocessed product stream of  claim 1  wherein the hydrocarbon synthesis product stream comprises a Fischer-Tropsch product stream.  
     
     
         3 . The product stream of  claim 1  wherein at least one heteroatomic compound is an .oxygenate.  
     
     
         4 . The product stream of  claim 3  wherein the hydrotreating step retains at least 50% of the oxygen content of the at least a portion of a hydrocarbon synthesis product stream in the hydroprocessed product stream.  
     
     
         5 . The product stream of  claim 3  wherein the hydrotreating step retains at least 75% of the oxygen content of the at least a portion of a hydrocarbon synthesis product stream in the hydroprocessed product stream.  
     
     
         6 . The product stream of  claim 1  wherein the at least a portion of a hydrocarbon synthesis product stream is fractionated upstream of the hydrotreater.  
     
     
         7 . The product stream of  claim 6  wherein the at least a portion of the hydrocarbon synthesis product stream comprises primarily diesel.  
     
     
         8 . The method of  claim 1  wherein the hydrotreater comprises a catalyst, wherein the catalyst comprises at least one metal selected from the group consisting of Ni, Pd, Pt, Ru, Mo, W, Fe, and Co.  
     
     
         9 . The method of  claim 8  wherein the catalyst comprises Co, Fe, or combination thereof.  
     
     
         10 . The method of  claim 9  wherein the hydrotreater is operated at a temperature of between about 350° F. and about 570° F.  
     
     
         11 . The method of  claim 8  wherein the hydrotreater comprises a catalyst, and said catalyst comprises at least one metal selected from the group consisting of Ni, Pd, Pt, Ru, Mo, and W.  
     
     
         12 . The product stream of  claim 11  wherein the hydrotreater comprises a nickel catalyst.  
     
     
         13 . The product stream of  claim 12  wherein the hydrotreater is operated at a temperature of between about 180° F. and about 350° F.  
     
     
         14 . The product stream of  claim 12  wherein the hydrotreater is operated at a temperature of between about 180° F. and about 320° F.  
     
     
         15 . The product stream of  claim 12  wherein the hydrotreater is operated at a temperature of between about 180° F. and about 300° F.  
     
     
         16 . The product stream of  claim 1  wherein the hydroprocessed product stream comprises a diesel fraction and wherein the diesel fraction has an oxygen content of about 0.1 wt % or greater and an oxidation stability of about 25 g/m 3  or less.  
     
     
         17 . The product stream of  claim 1  wherein the at least a portion of a hydrocarbon synthesis product stream is fractionated downstream of the hydrotreater.  
     
     
         18 . The product stream of  claim 1  wherein wherein the hydroprocessed product stream comprises a diesel fraction and has a Bromine number of less than about 0.1 g Br/i 00 g.  
     
     
         19 . A hydrotreated diesel product derived from synthesis gas having the following properties: 
 Oxidation stability≦25 g/m 3 ;    oxygen content≧0.1 wt %; and    lubricity HFRR≦400 μm; 
 wherein the hydrotreated diesel product consists essentially of molecules which have been hydrotreated.  
   
     
     
         20 . The diesel product of  claim 19  having an oxygen content of about 0.7 wt %.  
     
     
         21 . The diesel product of  claim 19  having a lubricity of less than or equal to about 340 μm.  
     
     
         22 . The diesel product of  claim 19  having a pour point of less than about 2° C.  
     
     
         23 . The diesel product of  claim 19  having a Bromine number of less than about 0.1 g Br/100 g.  
     
     
         24 . The diesel product of  claim 19  having an oxidation stability of between about 0.5 g/m 3  and about 25 g/m 3 .  
     
     
         25 . The diesel product of  claim 19  having an oxidation stability of less than about 0.5 g/m 3 .  
     
     
         26 . The diesel product of  claim 19  having an oxidation stability of less than about 10 g/m 3 .  
     
     
         27 . The diesel product of  claim 19  having an oxidation stability of less than about 5 g/m 3 .  
     
     
         28 . The diesel product of  claim 19  having an oxidation stability of less than about 2 g/m 3 .  
     
     
         29 . The diesel product of  claim 19  having an oxygen content of greater than about 0.35 wt %.  
     
     
         30 . The diesel product of  claim 19  having an oxygen content of greater than about 0.525 wt %.  
     
     
         31 . The diesel product of  claim 19  having an oxygen content of greater than about 0.63 wt %.