Reduced emissions transportation fuel

Abstract

Transportation fuels are provided that have reduced toxics, VOC and NO x emissions, as well as, reduced sulfur content. The transportation fuels provided meet emissions reduction requirements determined by using the EPA Complex Model and for reduced sulfur. Reduction in sulfur content allows the use of components with high concentrations of olefins, while still reducing toxics, hydrocarbon (VOCs) and NO x emissions to acceptable levels.

1 . A method for producing a transportation fuel, the method comprising; 
 blending a plurality of hydrocarbon streams to produce a transportation fuel complying with the emissions performance requirements of the Clean Air Act Amendments for Conventional Gasoline and for Reformulated Gasoline as predicted by the EPA Complex Model, said transportation fuel having:    a) a sulfur content of less than about 300 ppm,    b) an octane rating of from about 87 to about 94,    c) a 50% D-86 distillation point of greater than about 215° F.,    d) a 90% D-86 distillation point of less than about 360° F.,    e) an olefins content of greater than about 15%, and    f) a Reid Vapor Pressure of less than 7.5.    
     
     
         2 . The method according to  claim 1 , wherein said transportation fuel has a sulfur content of less than 80 ppm.  
     
     
         3 . The method according to  claim 1 , further comprising blending said transportation fuel with at least one oxygenating component selected from the group consisting of ethyl tert-butyl ether, methyl tert-butyl ether, tert-amyl methyl ether, methanol and ethanol.  
     
     
         4 . A method for producing a transportation fuel, the method comprising; 
 blending a plurality of hydrocarbon streams to produce a transportation fuel complying with the emissions performance requirements of the Clean Air Act Amendments for Conventional Gasoline and for Reformulated Gasoline as predicted by the EPA Complex Model, said fuel having:    a) a sulfur content of less than about 300 ppm,    b) an octane rating of from about 87 to about 94,    c) a 50% D-86 distillation point of less than about 235° F.,    d) a 90% D-86 distillation point of greater than about 315° F.,    e) an olefins content of greater than about 15%, and    f) a Reid Vapor Pressure of less than 7.5.    
     
     
         5 . The method according to  claim 4 , wherein said transportation fuel has a sulfur content of less than 80 ppm.  
     
     
         6 . The method according to  claim 4 , further comprising blending said transportation fuel with at least one oxygenating component selected from the group consisting of ethyl tert-butyl ether, methyl tert-butyl ether, tert-amyl methyl ether, methanol and ethanol.  
     
     
         7 . A method for producing a transportation fuel, the method comprising; 
 blending a plurality of hydrocarbon streams to produce a transportation fuel complying with the emissions performance requirements of the Clean Air Act Amendments for Conventional Gasoline and for Reformulated Gasoline as predicted by the EPA Complex Model, said fuel having:    a) a sulfur content of less than about 300 ppm,    b) an octane rating of from about 87 to about 94,    c) a 50% D-86 distillation point of less than about 235° F.,    d) a 90% D-86 distillation point of less than about 360° F.,    e) an olefins content of greater than about 15%, and    f) a Reid Vapor Pressure of less than 7.5.    
     
     
         8 . The method according to  claim 7 , wherein said transportation fuel has a sulfur content of less than 80 ppm.  
     
     
         9 . The method according to  claim 7 , further comprising blending said transportation fuel with at least one oxygenating component selected from the group consisting of ethyl tert-butyl ether, methyl tert-butyl ether, tert-amyl methyl ether, methanol and ethanol.  
     
     
         10 . A method for producing an oxygenated transportation fuel, the method comprising; 
 providing a blend stock suitable for blending with an oxygenating component to produce a transportation fuel complying with the emissions performance requirements of the Clean Air Act Amendments for Conventional Gasoline and for Reformulated Gasoline as predicted by the EPA Complex Model, said blend stock having the following properties;    a) sulfur content of less than about 300 ppm,    b) an octane rating of at least 83.5,    c) a 50% D-86 distillation point of less than about 232° F.,    d) a 90% D-86 distillation point of less than about 360° F.,    e) an olefins content of greater than about 15%,    f) a Reid Vapor Pressure of less than 7.5, and    blending said blend stock with an oxygenate to produce a transportation fuel having an octane rating of at least 87.    
     
     
         11 . The method according to  claim 10 , wherein said blend stock has a sulfur content of less than 80 ppm.  
     
     
         12 . The method according to  claim 10 , wherein said oxygenate is selected from the group consisting of ethyl tert-butyl ether, methyl tert-butyl ether, tert-amyl methyl ether, methanol and ethanol.  
     
     
         13 . The method according to  claim 11 , wherein said oxygenate is selected from the group consisting of ethyl tert-butyl ether, methyl tert-butyl ether, tert-amyl methyl ether, methanol and ethanol.