Citric acid esters as biogenic, regenerative fuels and heating materials

Abstract

The invention describes citric acid esters as heating materials and fuels in stationary and mobile internal combustion engines and also in heating installations. Such propellants and fuels are characterized in particular by the fact that they burn completely without soot or with very little soot, therefore cause distinctly lower emissions of soot or fine dust than known fossil and regenerative fuels such as gasoline, diesel, kerosene, vegetable oils and biodiesel. Citric acid esters can be obtained completely from regenerative vegetable sources and are therefore CO 2 neutral.

1 . Heating material or fuel for a mobile or stationary combustion engine or heating installation with burner, characterized in that the heating material or fuel completely or partially consists of citric acid ester or citric acid ester derivates. 
     
     
         2 . Heating material or fuel according to  claim 1 , characterized by a citric acid triethyl ester. 
     
     
         3 . Heating material or fuel according to  claim 1 , characterized by a citric acid tributyl ester. 
     
     
         4 . Heating material or fuel according to  claim 1 , characterized by mixtures of citric acid esters with each other. 
     
     
         5 . Heating material or fuel according to  claim 1 , characterized in that known heating materials respectively fuels are added into the citric acid ester or citric acid ester derivates in a mixing ratio of 1-99%. 
     
     
         6 . Heating material or fuel according to  claim 5 , characterized in that the mixing ratio of citric acid ester or citric acid ester derivates and conventional heating materials respectively fuels is 5-50%, preferably 5-20%. 
     
     
         7 . Heating material or fuel according to  claim 5 , characterized in that the known heating materials/fuels consist of diesel, heating oil, kerosene, solid and liquid hydrocarbons, plant and animal oils and fats or fatty acid methyl ester. 
     
     
         8 . Heating material or fuel according to  claim 1 , characterized in that the citric acid ester derivates comprise straight chain or branched alky or alky groups at the free alcohol groups.