Manganese sulfate effect on PAH formation from polystyrene pyrolysis

摘要: Abstract Polystyrene (PS) was pyrolyzed with/without manganese sulfate addition in a 100% N 2 environment at 600, 700 and 800°C laboratory quartz reactor. The mole ratio of carbon (in PS) to Mn 40/1. gas-phase liquid-phase polycyclic aromatic hydrocarbons (PAHs) were extracted with dichloromethane (DCM) subsequently prepared for further analysis an HPLC equipped wavelength-scanning ultraviolet (UV) detector fluorescence (FL) detector. Virtually no char or coke residue observed the reactor end pyrolysis reaction. MnSO 4 into high-temperature PS reduced PAH formation all liquid gas products. transition metal-chelating oxidation mechanism previously used explain soot reduction during combustion not adequate explaining results via inert pyrolysis. Furthermore, it is suggested that salt oxygen-rich might result only from well-accepted chelating mechanism; rather, hydrocarbon species locally fuel-rich addition, as inferred this study.