Avaliação físico-química e quimiométrica de combustível aeronáutico: uma abordagem acerca da estabilidade após estocagem e com adição de adulterantes

Abstract

The fuel is necessary for the evaluation of quality issues, QAV, due to its great importance, demand for use and for safety, it needs a physical-chemical property before being inserted in the market, in order to certify that of the product and guarantee that its characteristics meet the standards imposed by the National Agency of Petroleum, Biofuels and Natural Gas – ANP. However, even with production control, adulteration processes can guarantee the process of this product in its quality distribution. This sought to assess the impact of quality keros with quality, tampered with when necessary. The investigation was carried out using two methodologies. The first one occurred by simulating the adult who wanted the combination, as a combination of kerosene combination 0% (v/characterization) by comparing comparison chemicals, freezing content, soot point, total sulfur content, distillation curvature, specific gravity, soot point, soot point, tolerance and corrosivity. In the second, spectroscopic methods associated with chemometric techniques were used. Therefore, the tampering of the QAV was simulated in different lighting products, ranging from 5 to 60% (v/v). As a sample they were by infrared spectroscopic techniques (MIR/NIR) during a period that extended for 60 days. The data obtained later through chemometric analysis techniques (PCA), analysis-model of discriminatory analysis of curves obtained with linear alternation (MCR-LDS) in order to obtain an analysis model that could predict the presence of adults and the amount present of this in falling kerosene. The results. However, the chemometric techniques used in this work were able to identify the presence of MCR-ALS.