Plug flow reactor model
（重定向自Piston flow reactor）
![Schematic diagram of a plug flow reactor](/Images/godic/202502/03/Pipe-PFR.svg5852.png")
The plug flow reactor model (PFR, sometimes called continuous tubular reactor, CTR, or piston flow reactors) is a model used to describe chemical reactions in continuous, flowing systems of cylindrical geometry. The PFR model is used to predict the behavior of chemical reactors of such design, so that key reactor variables, such as the dimensions of the reactor, can be estimated.