DIESEL FUEL COMPOSITION

摘要

A diesel fuel composition which essentially comprises only paraffins, and which is characterised in that 1) the normal paraffins with 18 or fewer carbons constitute not less than 12% by mass, and 2) the proportion of the total peak area of the peak group at chemical shifts of 1.45 to 2.25 ppm relative to the total peak area of the peak group at chemical shifts of 1.00 to 1.45 ppm is less than 6.5% in proton nuclear magnetic resonance (1H-NMR) spectra, and which has an oxidation index OI of less than 1.10. OI is represented by the equation OI = 0.247X - 0.001Y - 0.053, wherein X is the proportion (%) of the total peak area of the peak group at chemical shifts of 1.45 to 2.25 ppm relative to the total peak area of the peak group at chemical shifts of 1.00 to 1.45 ppm in proton nuclear magnetic resonance (1H-NMR) spectra; and Y is the content (mass %) of normal paraffins with 18 or fewer carbons.