Minimum amount of diesel in jet fuel detected by simulated Distillation FID gas chromatography that can influence DEF STAN

Abstract

Information on boiling point (BP) is a crucial metric for defining petroleum streams. Understanding the BP distribution range of hydrocarbon products is crucial for selecting an appropriate way to process feedstocks, controlling the process, identifying impurities, and developing new tests. To evaluate BP range rapidly, the refinery employs simulated distillation (SimDis) by gas chromatography (GC) paired with a flame ionization detector (FID) and a capillary column. This method is used to examine the level of contamination in petroleum products. Jet A-1 fuel is an essential product whose specifications can be altered by diesel contamination. Some producers utilize the same distribution line for both products, contaminating the Jet fuel that is shipped. We conducted research to determine the lowest level of diesel contamination in jet A-1 fuel. The study consists of varying proportions of diesel (0.5%, 2%, and 5% mass) blended with jet A-1 to determine the impact on standard specifications DEF STAN 91-91/12 and ASTM D1655. Among those methods, SimDis by GC-FID was the most successful method for identifying a little level of diesel contamination. Properties of jet fuel, such as thermal stability, water separation, and electrical conductivity, are particularly sensitive to trace contamination and can be altered by it.