Design of the Fixed-Bed Catalytic Reactor for Phthalic Anhydride Production: Optimal Reactor Length and Radius Estimation

무수프탈산 생산을 위한 고정층 촉매 반응기 설계: 최적 촉매층 길이 및 반경 추정

  • Yoon, Young-Sam (Kum River Water Quality Research Laboratory, National Institute of Environmental Research) ;
  • Koo, Eun Hwa (Department of Chemical Engineering, Pusan National University) ;
  • Park, Pan-Wook (Department of Chemical Engineering, Pusan National University)
  • 윤영삼 (국립환경연구원 금강수질검사소) ;
  • 구은화 (부산대학교 화학공학과) ;
  • 박판욱 (부산대학교 화학공학과)
  • Received : 1999.08.28
  • Accepted : 1999.12.01
  • Published : 1999.12.10


Prediction model was composed by optimal parameter estimation from best fitting on reactant temperature profile, inlet and outlet temperature of coolant and yield of dual fixed-bed catalytic reactor(FBCR) which was measured in the industrial field. In order to design the FBCR which could obtain maximum conversion and yield, we investigated the effect of catalyst bed length and reactor radius changes. An uniform activity FBCR showed the best performance at z = 2.8 m of total catalysst bed length in case of reactor radius r = 0.01241 m and z =2.80 m(upper layer: 1.88 m, lower layer: 0.92 m) under reactor radius r = 0.01254 m for a dual activities FCBR. In case of reactor radius changes, the axial temperature profile and maximum radial temperature was rapidly risen for radius increase. The reactor radius decrease showed the opposite result.


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