Cleaner burning diesel fuel

Abstract

An improved diesel fuel based on a blend of biodiesel and ultra-low sulfur diesel fuel, particularly with a fuel additive containing a concentrate containing fuel borne catalyst (FBC). The catalyst will preferably comprise platinum and/or cerium and/or iron, and the ultra-low sulfur diesel fuel will preferably contain less than 10% aromatics. The biodiesel is typically employed in an amount of about 20% of the blend.

1 . An improved diesel fuel blend comprising biodiesel and low aromatic content ultra-low sulfur diesel fuel.  
     
     
         2 . A diesel fuel blend according to  claim 1 , which further includes a fuel borne catalyst (FBC) comprising platinum and/or iron, and/or cerium.  
     
     
         3 . A diesel fuel blend according to  claim 1 , which comprises from 15 to 25% biodiesel.  
     
     
         4 . A diesel fuel blend according to  claim 1 , wherein the low aromatic ultra-low sulfur diesel fuel component comprises less than 10% by volume aromatics.  
     
     
         5 . A diesel fuel blend according to  claim 1 , wherein sulfur content is less than 0.0015%.  
     
     
         6 . A diesel fuel blend according to  claim 5 , wherein the low aromatic ultra-low sulfur diesel fuel component comprises less than 10% by volume aromatics.  
     
     
         7 . A diesel fuel blend according to  claim 6 , which further includes a fuel borne catalyst (FBC) comprising platinum and/or iron, and/or cerium.  
     
     
         8 . A diesel fuel blend according to  claim 1 , which comprises from 15 to 25% biodiesel and the low aromatic ultra-low sulfur diesel fuel component comprises less than 10% by volume aromatics and a sulfur content of less than 0.0015% and the blend further includes a fuel borne catalyst (FBC) comprising platinum and/or iron, and/or cerium.  
     
     
         9 . An improved diesel fuel blend comprising from 15 to 25% biodiesel and low aromatic content ultra-low sulfur diesel fuel comprising less than 10% by volume aromatics and a sulfur content of less than 0.0015%.  
     
     
         10 . A diesel fuel blend according to  claim 9 , which further includes a fuel borne catalyst (FBC) comprising platinum and/or iron, and/or cerium.  
     
     
         11 . A diesel fuel blend according to  claim 10 , wherein the FBC comprises platinum.  
     
     
         12 . A diesel fuel blend according to  claim 11 , wherein the FBC comprises platinum and iron or cerium.