A rapid simulated distillation method is described for analysis of petroleum fractions boiling within the range of ASTM D2887. The method employs an Agilent 6890N gas chromatograph equipped with a split/splitless inlet, flame ionization detector (FID), oven insert, and 3-meter 180-µm id capillary column. Compared to conventional ASTM D2887, the accelerated method yields run times at least two times faster. It yields results comparable to traditional D2887, and agrees with the guidelines of ASTM method D2887 based on published results for the reference gas oil (RGO).
The document details a rapid simulated distillation method designed for analyzing petroleum fractions boiling within the range of ASTM D2887. The procedure utilizes an Agilent 6890N gas chromatograph equipped with a split/splitless inlet, flame ionization detector (FID), and a short 3-meter capillary column. A SIMDIS software package is integrated into the GC ChemStation to perform data analysis and SimDis calculations.
Compared to conventional ASTM D2887 methods, this accelerated approach yields run times at least two times faster while producing results comparable to traditional standards. The method employs a 3-meter 180-µm id capillary column (DB-1) with specific oven programs and flow rates to achieve high throughput without sacrificing accuracy for reference gas oil analysis.
| Column dimensions | 3 m x 180 µm x 0.4 µm |
|---|---|
| Inlet temperature | 325 °C |
| Split ratio | 50:1 |
| FID temperature | 350 °C |
| Oven program range | 35 °C to 340 °C at 30 °C/min |
| Data acquisition rate | 5 Hz |
The accelerated method yields run times at least two times faster than conventional ASTM D2887.
Yes, it yields results comparable to traditional D2887 and agrees with the guidelines based on published results for reference gas oil.