Fuel based on a plant oil

Abstract

The subject of the invention is a fuel based on a plant oil, comprising at least one plant oil purified by a process comprising at least one step of adsorbing peroxidized molecules, phospholipids and water molecules (onto a solid aluminosilicate). The invention also relates to the use of this agri-fuel in combustion installations without modifying the burners.

1 . Vegetable-oil-based fuel, comprising at least one vegetable oil that is purified by a process that comprises at least one stage for adsorption of peroxidized molecules, phospholipids, and water molecules. 
   
   
       2 . Purified vegetable-oil-based fuel according to  claim 1 , characterized in that the purified vegetable oil has the following characteristics:
 A water-in-oil content that is less than 0.3%,   A peroxide number that is less than 2 meq of O 2  per kg of oil, and   A phosphorus content that is less than 5 mg per kg of oil.   
   
   
       3 . Purified vegetable-oil-based fuel according to  claim 2 , wherein the water-in-oil content is less than 0.1%. 
   
   
       4 . Purified vegetable-oil-based fuel according to  claim 1 , wherein the vegetable oil has a maximum acidic number of 0.5 mg of KOH/g. 
   
   
       5 . Purified vegetable-oil-based fuel according to  claim 1 , wherein the stage for adsorption of the peroxidized molecules, phospholipids, and water molecules is carried out on a solid aluminosilicate. 
   
   
       6 . Purified vegetable-oil-based fuel according to  claim 1 , wherein it also comprises at least one domestic fuel. 
   
   
       7 . Purified vegetable-oil-based fuel according to  claim 6 , wherein the vegetable oil constitutes between 5 and 50% by weight of the vegetable oil-domestic fuel mixture. 
   
   
       8 . Purified vegetable-oil-based fuel according to  claim 5 , wherein the vegetable oil constitutes 20% by weight of the vegetable oil-domestic fuel mixture. 
   
   
       9 . Purified vegetable-oil-based fuel according to  claim 1 , wherein the vegetable oil is canola oil. 
   
   
       10 . Purified vegetable-oil-based fuel according to  claim 1 , wherein the vegetable oil is purified by a process that comprises at least the following stages:
 Adsorption of peroxidized molecules, phospholipids, and water molecules of vegetable oil, on a clay-type solid aluminosilicate,   Washing in a basic medium to eliminate the free fatty acids,   Rinsing with water, and   Drying of oil at 80° C. under vacuum.   
   
   
       11 . Use of the fuel according to  claim 1 , in a boiler that operates with domestic fuel oil, without modification of this boiler. 
   
   
       12 . Use according to  claim 11 , wherein said fuel is used with additives that are used with the pure domestic fuel oil. 
   
   
       13 . Purified vegetable-oil-based fuel according to  claim 2 , wherein the vegetable oil has a maximum acidic number of 0.5 mg of KOH/g. 
   
   
       14 . Purified vegetable-oil-based fuel according to  claim 3 , wherein the vegetable oil has a maximum acidic number of 0.5 mg of KOH/g. 
   
   
       15 . Purified vegetable-oil-based fuel according to  claim 2 , wherein the stage for adsorption of the peroxidized molecules, phospholipids, and water molecules is carried out on a solid aluminosilicate. 
   
   
       16 . Purified vegetable-oil-based fuel according to  claim 3 , wherein the stage for adsorption of the peroxidized molecules, phospholipids, and water molecules is carried out on a solid aluminosilicate. 
   
   
       17 . Purified vegetable-oil-based fuel according to  claim 4 , wherein the stage for adsorption of the peroxidized molecules, phospholipids, and water molecules is carried out on a solid aluminosilicate. 
   
   
       18 . Purified vegetable-oil-based fuel according to  claim 2 , wherein it also comprises at least one domestic fuel. 
   
   
       19 . Purified vegetable-oil-based fuel according to  claim 3 , wherein it also comprises at least one domestic fuel. 
   
   
       20 . Purified vegetable-oil-based fuel according to  claim 4 , wherein it also comprises at least one domestic fuel.