Emulsion fuel and method of preparing the same

Abstract

The emulsion fuel according to the present invention is prepared by emulsifying about 55 to 90% by weight of a mixture of heavy oil, 45 to 10% by weight of water, and 0.3 to 0.8% by weight of a catalyst. The catalyst comprises caustic soda (sodium hydroxide) and calcium dichloride in half and half. The calcium chloride can be partly substituted with calcium sulfate.

1 . An emulsion fuel comprising 55 to 90% by weight of a heavy oil, 45 to 10% by weight of water, and a small amount of a catalyst.  
   
   
       2 . The emulsion fuel as defined in  claim 1 , wherein said catalyst is prepared by mixing caustic soda with calcium dichloride.  
   
   
       3 . The emulsion fuel as defined in  claim 2 , wherein said catalyst comprises 50% by weight of caustic soda and 50% by weight of calcium dichloride.  
   
   
       4 . The emulsion fuel as defined in  claim 2 , wherein said calcium chloride is partly substituted with calcium sulfate.  
   
   
       5 . The emulsion fuel as defined in  claim 1 , wherein said catalyst is 0.3 to 0.8% by weight.  
   
   
       6 . The emulsion fuel as defined in  claim 1 , wherein said heavy oil is bunker fuel oil C or petroleum.  
   
   
       7 . A method for preparing an emulsion fuel comprising the steps of: 
 mixing a composition comprising 55 to 90% by weight of a heavy oil, 45 to 10% by weight of water with a small amount of a catalyst; and    emulsifying the mixture with an emulsifier.    
   
   
       8 . The method as defined in  claim 7 , wherein said catalyst is prepared by mixing caustic soda with calcium dichloride.  
   
   
       9 . The method as defined in  claim 8 , wherein said catalyst comprises 50% by weight of caustic soda and 50% by weight of calcium dichloride.  
   
   
       10 . The method as defined  claim 8 , wherein said calcium chloride is partly substituted with calcium sulfate.  
   
   
       11 . The method as defined  claim 7 , wherein said catalyst is 0.3 to 0.8% by weight.  
   
   
       12 . The method as defined  claim 7 , wherein said heavy oil is bunker fuel oil C or petroleum.  
   
   
       13 . A catalyst composition for preparing an emulsion fuel by emulsifying a mixture of a heavy oil and water, the composition comprising 50% by weight of caustic soda and 50% by weight of calcium dichloride.  
   
   
       14 . A catalyst composition for preparing an emulsion fuel by emulsifying a mixture of a heavy oil and water, the composition comprising 50 parts by weight of caustic soda and 50 parts by weight of a mixture of calcium dichloride and calcium sulfate.