cetane index


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cetane index

[′sē‚tān ‚in‚deks]
(chemical engineering)
An empirical method for finding the cetane number of a fuel based on API gravity and the mid boiling point.
References in periodicals archive ?
Cetane number not less than 48 gost 52368-2005, cetane index no less than 46 gost 52368-2005, the delivered goods must comply with the technical regulations of the customs union of the technical regulations of the customs union tr tc 013/2011 "on the requirements for automobile and aviation gasoline, diesel and marine fuel, jet fuel and fuel oil decision of the customs union commission on 18.
7690 Cloud point [degrees]C -5 -26 Pour Point [degrees]C -12 -39 CFPP [degrees]c -6 -31 Cetane Index 82 80 D86 distillation [degrees]C IBP [degrees]C 153 164 5% [degrees]C 174 186 10% [degrees]C 182 194 20% [degrees]C 200 210 30% [degrees]C 220 225 40% [degrees]C 240 241 50% [degrees]C 260 259 60% [degrees]C 279 276 10% [degrees]C 296 294 80% [degrees]C 314 313 90% [degrees]C 336 335 95% [degrees]C 350 350 FBP [degrees]C 353 355 FBP-90% [degrees]C 17 20 90%-20% [degrees]C 136 125 95%-80% [degrees]C 36 37 Total n-alkanes % 49.
Real-Time Analyzer's Portable Fuel Quality Analyzer (PFQA) determines the following physical and chemical properties for diesel, gasoline and jet fuels in 10 sec: cetane index, cloud point, density, distillation values (0, 50, 90 and 100%), flash point, freezing point, octane (AKI), pour point and viscosity; as well as aromatics, BTEX, biodiesel, ethanol, FSII, MTBE, naphthenes, olefins, saturates and sulfur.
7] AS TM D4737-10 Standard Test Method for Calculated Cetane Index by Four Variable Equation 2010.
The physicochemical properties such as density, viscosity, heating value, cetane index, flash point, Conradson carbon residue and distillation behavior of the obtained biodiesel were determined.
The calculated cetane index (CCI) is based on Krisnagkura equation [18]:
The key product characteristics of Oryx GTL diesel that make it such a sought after product are its low density -- which falls outside of the European Automotive Diesel range - and high Cetane Index.
Because the results could not conclude which purification step is the most suitable for improving the quality of biodiesel, it will be necessary to determine other characteristics of biodiesel, like saponification, iodine, peroxide values, cetane index, water content, fatty acids methyl ester composition, product yield.
50 Norm ppm S) Cetane number, min 51 Cetane index, min 46 Density at 15[degrees]C, kg/[m.
m/m Cetane Index, ASTM D-976 [greater than or equal to]45 Cetane Index, ASTM D-4737 [greater than or equal to]45 Parameter Value range Distillation, initial 170.
This reason being that higher cetane index due to the addition of biodiesel and the ethanol content due to the improved quality of fuel spray with blended fuels since the boiling point of ethanol is lower than that of neat diesel, higher reaction activity in the fuel rich zone due to the oxygenate of ethanol and the reduction in heat losses due to the lower flame temperature [17, 18, 26-29].