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.
Disclosure statement
There are no conflicts of interest to declare.