Fenton reaction in an immiscible liquid-liquid reactors using planer laser induced fluorescence signature

Existence of a second phase in liquid-liquid reactors makes the performance to be differed from single-phase stirred reactors. In this paper, the oxidation of Fenton reaction has been investigated in the continuous phase in an immiscible reactor using planer laser induced fluorescence (PLIF) signature. PLIF is a non-intrusive signature with high temporal and spatial resolution to quantitatively visualize the dynamic variation of fluorescence dye due to chemical reaction. The results showed that the Fenton reaction is very fast in the single-phase stirred reactors and the mixing is the limiting step, while in the two-phase reactors, the reaction time is increased due to the adsorption of tracer at the surface of dispersed phase droplets. The increasing the concentration of the oxidant specie has a beneficial effect on reducing the reaction time and increase the conversion of the Fenton reaction. The distribution of tracer concentration measured in different zones of reactor and results showed the degradation of tracer in top of impeller is better than the near floor of reactor.

کلیدواژه ها:

immiscible Liquid-liquid stirred reactors ، PLIF signature ، dispersed phase ، continuous phase