Patent ID: 6017368
Filing Date: 2000-01-25
Classification: C10L

Abstract:
A low viscosity microemulsion fuel for the internal combustion engine and heating oil furnaces that is stable over a wide range of temperatures including temperatures below the freezing point of water, prepared by low shear mixing of a petroleum product with an additive wherein the additive is a clear, low viscosity solution comprising an anionic surfactant derived from the partial neutralization of an unsaturated fatty acid or a blend of unsaturated fatty acids with ammonia, a non-ethoxylated non-ionic surfactant, water-insoluble long chain aliphatic alcohols, water-soluble aliphatic alcohols, water, nitrogen oxide (NOx) scavengers consisting of urea and ethyl carbamate or mixtures thereof, and the stoichiometric amount of the sodium salt of the unsaturated fatty acid for neutralizing sulfur acids derived from the sulfur present in the petroleum product when it is oxidized during combustion of the microemulsion fuel.