ANALYSIS OF THE EFFECTS OF EVAPORATIVE WEATHERING ON THE COMPOSITION OF SATURATES IN OFFSHORE OIL SPILL SCENARIOS
DOI:
https://doi.org/10.36524/ric.v10i4.2630Keywords:
Oil spills, evaporative weathering, saturated hydrocarbons, GC-MSAbstract
In this study was conducted on the weathering of petroleum by evaporation with the aim of investigating the changes in the chemical changes in the chemical profile of the saturated hydrocarbon fraction in four chromatography coupled with mass spectrometry (GC-MS). The samples (AMB1, AMB2, AMB3, AMB5, AMB1Ev, AMB2Ev, AMB3Ev and AMB5Ev) were characterized with respect to density, kinematic and dynamic viscosity, pour point, sulfur content and asphaltenes point, sulfur content, asphaltene content, total acid number and total salinity index. The saturated compounds analyzed by GC-MS were obtained by fractionating the by fractionation of saturated hydrocarbons, aromatic hydrocarbons, and polar compounds (SAP). The fractionation results show mass losses after evaporation corresponding to 31.58% for AMB1 (heavy), 2.69% for AMB2 (heavy), 2.81% for AMB3 (medium), 4.91% for AMB5 (heavy). Regarding the GC-MS analysis it was observed that the volatilization of the compounds with the lowest molecular weights was evidenced by the reduction of the saturates in the evaporated samples. O This study highlights the contribution of evaporation to the changes in the chemical profile of the saturated hydrocarbon fraction.
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