Examples for combinations of ideal reactors

• Tubular flow reactor with axial dispersion, modelling by a combination of n CSTRs
  simulation example: snapshot (simulation: series of n CSTRs) or: explanation
  
  
• Tubular flow reactor with a parabolic flow profile (laminar flow, see snapshot), modelling by a series of TFR and CSTR, see
  snapshot of combination
  simulation examples: (simulations: look into the filecatalogue by scrolling down: RTD of a laminar TFR and comparison of laminar TFR and series combination)
  
  
• *Series of CSTR and TFR for reactions that 'demand' concentration controlling, - e.g. in a special case with initial back-mixing (autocatalytic reaction)
  for the RTD take the same simulation example: snapshot (simulation: series of an ideal TFR and CSTR)
  But realize: For the RTD of this serial combination of ideal reactors it is not important whether the CSTR is the first or second reactor in the serial combination (and you don't see that from the RTD), - whereas - when a reaction is running - it is decisive whether you encounter total back-mixing or total not-back-mixing in the first reaction phase. You should try to draw a sketch for both 'versions' in a 1/r-plot, - very informative!!! too lazy ? than take this...
  
  
• CSTR with the real behaviour of a bypass from inlet to outlet, modelling by a two-strand model of an ideal CSTR and a TFR or better a series of CSTRs (cascade). (Why is it better not to take an ideal TFR as bypass?)
  simulation example: snapshot ( simulation: parallel combination of CSTR and TFR)
  
  
• The loop reactor. see slides
  
  
• look at the simulation catalogue for further RTD-simulations, you can find static snapshots there too !

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