Degradation of brominated flame retardant in computer housing plastic by supercritical fluids

► Supercritical fluids were introduced for debromination and recovery of oil from waste plastic containing brominated flame retardant in e-waste. ► Organic solvents performed excellent effectiveness not only on debromination but also on oil recycling, among which, isopropanol was the most effective. ► Addition of KOH to supercritical isopropanol further enhanced depolymerization and captured inorganic bromine from oil and thus obtaining bromine-free oil.