Use of a blue flame burner

Abstract

The invention relates to a process for operating a blue flame burner by burning a Fischer-Tropsch derived fuel. The Fischer-Tropsch fuel contains a Fischer-Tropsch product which boils for more that 90 wt % between 160 and 370° C., contns more than 80 wt % of iso and normal paraffins, less than 1 wt % aromatics, less than 5 ppm sulftir and less that 1 ppm nitrogen and has a density between 0.65 g/cm 3 and 0.8 g/cm 3 at 15° C.

1 . A process for operating a blue flame burner comprising burning a Fischer-Tropsch derived fuel to produce flue gasses.  
     
     
         2 . The process of  claim 1 , further comprising operating under conditions such that lambda is between 1 and 1.6  
     
     
         3 . The process of  claim 2 , wherein lambda is between 1.05 and 1.2.  
     
     
         4 . The process of  claim 1 , further comprising heating water with the flue gasses by means of indirect heat exchange in a boiler.  
     
     
         5 . The process of  claim 1 , further comprising heating a space directly with the flue gasses.  
     
     
         6 . The process of claims  1 , wherein the Fischer-Tropsch derived fuel boils for more than 90 wt % between 160° C. and 400° C.  
     
     
         7 . The process of  claim 6 , wherein the Fischer-Tropsch derived fuel boils for more than 90 wt % between 160° C. and 370° C.  
     
     
         8 . The process of  claim 1 , wherein the Fischer-Tropsch derived fuel comprises a Fischer-Tropsch product which contains more than 80 wt % of iso and normal paranffins, less than 1 wt % aromatics, less than 5 ppm sulfur and less than 1 ppm nitrogen and wherein the density of the Fischer-Tropsch product is between 0.65 g/cm 3  and 0.8 g/cm 3  at 15° C.  
     
     
         9 . The process of claims  1 , wherein the Fischer-Tropsch derived fuel comprises more than 80 wt % of a Fischer-Tropsch product.  
     
     
         10 . The process of  claim 9 , wherein the Fischer-Tropsch derived fuel comprises a mineral oil fraction and/or a non-mineral oil fraction  
     
     
         11 . The process of claims  1 , wherein the Fischer-Tropsch derived fuel comprises one or more additives.  
     
     
         12 . The process of  claim 11 , wherein the Fischer-Tropsch derived fuel comprises an en odor marker.  
     
     
         13 . The process of  claim 11 , wherein the Fischer-Tropsch derived fuel comprises a color marker.