Fuel composition for a diesel engine

Abstract

The invention is directed to a fuel composition for diesel engines. The fuel composition comprises 0.1-99% by weight of a component or a mixture of components produced from biological raw material originating from plants and/or animals and or fish. The fuel composition comprises 0-20% of components containing oxygen. Both components are mixed with diesel components based on crude oil and/or fractions from Fischer-Tropsch process.

1 . A fuel composition for diesel engines compromising: 
 a) 0.1-30% by volume of a component or a mixture of components produced from biological raw material originating from plants by hydrogenating and decomposing fatty acids and/or fatty acid esters to give hydrocarbons and isomerizing the hydrocarbons to give iso-paraffins;    b) 0-20% by volume of components containing oxygen selected from the group consisting of aliphatic alcohols, ethers, fatty acid esters, water and mixtures containing the same; both components a) and b) being mixed as an emulsion or dissolved in diesel components based on crude oil and/or fractions from Fisher-Tropsch process.    
     
     
         2 . The fuel composition according to  claim 1 , wherein the biological raw material is combined with animal fats, fish oils and mixtures thereof.  
     
     
         3 . The fuel composition according to  claim 1 , wherein the biological raw material is wood based or plant based fat or oil, a fat contained in plants bred by means of gene manipulation or a mixture of the above with an animal base fat, a fat contained in milk or a recycled fat of the food industry.  
     
     
         4 . The fuel composition according to  claim 3 , wherein the plant-based fat or oils is rapeseed oil, colza oil, canola oil, tall oil, sunflower oil, soybean oil, hempseed oil, olive oil, linseed oil, mustard oil, palm oil, peanut oil, castor oil or coconut oil.  
     
     
         5 . The fuel composition according to  claim 1  wherein the component produced from biological raw material is iso-paraffin having a carbon number of 12-24.