Process to generate heat

Abstract

The invention relates to a process to generate heat by burning a liquid fuel in an evaporator burner oven, wherein the liquid fuel is a Fischer-Tropsch derived fuel. The fuel boils for more than 90 wt % between 160 and 400° C. and has a Fischer-Tropsch product which contains more than 80 wt % of iso and normal paraffins, less than 1 wt % aromatics, less than 5 ppm sulfur and less than 1 ppm nitrogen and wherein the density of the Fischer-Tropsch derived product is between 0.65 0.8 g/cm 3 and 0.8 g/cm 3 at 15° C.

1 . A process to generate heat comprising burning a liquid fuel in an evaporator burner oven, wherein the liquid fuel comprises a Fischer-Tropsch derived fuel.  
     
     
         2 . The process of  claim 1 , wherein the Fischer-Tropsch derived fuel boils for more than 90 wt % between 160° C. and 400° C.  
     
     
         3 . The process of  claim 2 , wherein the Fischer-Tropsch derived fuel boils for more than 90 wt % between 160° C. and 370° C.  
     
     
         4 . 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 paraffins, 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 and 0.8 g/cm 3  at 15° C.  
     
     
         5 . The process of  claim 1 , wherein the Fischer-Tropsch derived fuel comprises more than 80 wt % of a Fischer-Tropsch product.  
     
     
         6 . The process of  claim 5 , wherein the Fischer-Tropsch derived fuel comprises a mineral oil fraction and/or a non-mineral oil fraction.  
     
     
         7 . The process one of  claim 1 , wherein the Fischer-Tropsch derived fuel comprises one or more additives.  
     
     
         8 . The process of  claim 7 , wherein the Fischer-Tropsch derived fuel comprises an odor marker.  
     
     
         9 . The process of  claim 7 , wherein the Fischer-Tropsch derived fuel comprises a color marker.  
     
     
         10 . The process of  claim 7 , wherein an additive is present which changes the color of the flame such that is detectable by a yellow flame detector.  
     
     
         11 . The process of  claim 1 , wherein an ionization type flame detector is used to detect the flame of the evaporator burner and wherein the fuel does not contain a metal-based combustion improver.