20130298449 | METHOD FOR REDUCING EMISSION OF POLLUTANTS FROM AN INTERNAL COMBUSTION ENGINE, AND FUEL EMULSION COMPRISING WATER AND A LIQUID HYDROCARBON - A fuel emulsion has a liquid hydrocarbon fuel, water, at least one emulsifier and at least one oxygen-containing water soluble organic compound. In the fuel emulsion, water is present in an amount not greater than 15% by weight, and the emulsifier is selected from a product obtained by reacting (a1) a polyolefin oligomer functionalized with at least one group deriving from a dicarboxylic acid, or a derivative thereof, with (a2) a polyoxyalkylene comprising linear oxyalkylene units. In the fuel emulsion, the oxygen-containing water soluble organic compound is present in a predetermined amount so as to obtain an amount of water soluble organic oxygen of from 0.1 to 5% by weight. A considerable reduction of particulate emissions is obtained by using this fuel emulsion while maintaining or even further reducing the NOx level which is already reduced by the engine itself. | 11-14-2013 |