The effects of reaction temperature,volume ratio of HCl to O2 and mass space velocity on the conversion rate of HC1 were investigated by orthogonal experiment in a mixture atmosphere of 99.9%HC1+0.1%HF.The results show that under the optimum reaction conditions of 390℃,2∶1 volume ratio of HCl to O2 and 1 h-1 mass space velocity,the conversion rate of hydrogen chloride can reach 92.5%.To further verify the stability of the catalyst,the one-way conversion rate of hydrogen chloride remained stable between 91%and 93%after running for 1 500 hours.Through ICP analysis,the loss rate of the active component Cu element in the catalyst is 1.175×10-5 g/h,it is preliminarily estimated that after stable operation for 10000 hours,the loss of Cu is only 1.68%of the amount of Cu element added to the catalyst,indicating that the catalyst has good activity,stability,and fluorine resistance.
fluorinated hydrogen chloridecatalytic oxidationfluorine-resistant copper based catalystchlorine gasorthogonal experiment