Types of Ideal reactors(Steady state,plug flow and mixed flow(PFR and MFR) and Batch Reactors and composition change)

Simple Flow reactors

Ideal reactors have three ideal flow or contacting patterns. We show these in Fig, and we very often try to make real reactors approach these ideals as closely as possible.

We particularly like these three flow or reacting patterns because they are easy to treat (it is simple to find their performance equations) and because one of them often is the best pattern possible (it will give the most of whatever it is we want). Later we will consider recycle reactors, staged reactors, and other flow pattern combinations, as well as deviations of real reactors from these ideals.

Figure-1

Figure-1 shows the Batch reactor and in this reactor Uniform composition, everywhere in the reactor but of course the, composition changes with time.

Figure-2

This shows one of the steady state reactor known as plug flow reactor.

Fluid passes through the reactor, with no mixing of earlier and later entering fluid and with no overtaking It is as if the fluid moved in single file through the reactor.

Figure-3

This shows one of the steady state reactor known as Mixed flow reactor (MFR)

Uniformly mixed, same everywhere within the reactor and at the exit.