Study On Electricity-Heterogeneous Catalysis Reactor Based On Fluidized Bed

The electricity-heterogeneous catalysis reactor without septum based on fluidized bed was investigated using the degradation of 2,4-dichlorophenol(2,4-DCP) with a concentration of 200 mg/L as evaluating index in this thesis.The effects of structural parameters including the density of particle electrode,the ratio of bed expansion,height-diameter ratio,fluidizing agent on 2,4-DCP removal were investigated.The experimental provided the data to support a new kind of expanded-bed electrolysis device and its treatment process of organic decomposition in aqueous.The experimental results show that the density ofγ-Al₂O₃/Sb₂O₄ +SnO₂ particle is a notable factor on the reaction and the oxidation ratio can be improved rapidly with the increasing of theγ-Al₂O₃/Sb₂O₄+SnO₂ particle bipolarized.64 mL/L～80 mL/L is an appropriate particle density. When the particle bed expansion ratio of 1,a better removal efficiency of 2,4-DCP was got than a lower expansion ratio.General consider the degradation rate and energy consumption of 2,4-DCP,the reactor with a height-diameter ratio of 6 is the optimal,after 60min reaction 85.8% 2,4-DCP was removed with a energy consumption of 40.6 kWh/kg2,4-DCP. When use gas as fluidizing agent,got a better removal efficiency of 2,4-DCP than liquid did.But larger energy consumption was needed at remove the same 2,4-DCP.Aeration can cause the transfer of pollutants.A new kind of expanded-bed electrolysis device and its treatment process of organic decomposition in aqueous was formed based on the experimental results.The problems existing in current reactor such as the pollution and congestion of particle electrode,the loss of particle or its surface component,lower impetus were conquered.Small-scale test of two kinds of industrial wastewater were performed.A well removal efficiency and high current efficiency were got.