Method for reducing emission of pollutants from an internal combusion engine, and fuel emulsion comprising water and a liquid hydrocarbon

摘要

Method for reducing emission of pollutants from an internal combustion engine including at least one combustion chamber. A fuel emulsion is injected into a combustion chamber; the fuel emulsion is ignited in the combustion chamber in the presence of air; and the internal combustion engine is operated so as to reduce peak combustion temperature in the combustion chamber. The fuel emulsion has a liquid hydrocarbon fuel, water, at least one emulsifier and at least one oxygen-containing water soluble organic compound. 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.