Patent ID: 6758870
Filing Date: 2004-07-06
Classification: C10L

Abstract:
A method to produce a diesel fuel blend having a pre-determined flash-point and a pre-determined increase in cetane number, comprising the steps of:a) selecting a stock diesel fuel with a flash-point and a cetane number, b) establishing the pre-determined flash-point and the pre-determined increase in cetane number of the diesel fuel blend to be produced; C) adding an amount of a first oxygenate with a flash-point less than the flash-point of said stock diesel fuel and a cetane number equal to or greater than the cetane number of said stock diesel fuel, said amount being sufficient to adjust the flash-point of the diesel fuel blend to the pre-determined flash-point; and d) adding an amount of a second oxygenate with a flash-point equal to or greater than the flash-point of said stock diesel fuel and a cetane number greater than the cetane number of said stock diesel fuel, said amount being sufficient to achieve the pre-determined increase in cetane number wherein the first oxygenate and the second oxygenate are not the same oxygenate.