Abstract
Polycyclic aromatic hydrocarbons (PAHs), as well as their sulfur (S-PAHs), oxygen (O-PAHs), and nitrogen (N-PAHs) analogs were evaluated in the fumes of asphalt samples produced in Brazilian refineries. The fumes were generated using a laboratory-constructed device for extraction and collection (DEC). Two previously published methodologies for PAHs and S-PAHs evaluation by high-performance liquid chromatography with diode array detection (HPLC-DAD) were employed, together with a new methodology for O and N-PAHs. A total of 54 compounds were assessed. The samples included 31 compounds within the scope of this study, and the emissions were highly dependent upon the heating temperature and asphalt source.
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