When a reacting substance or mixture is
caused to flow in a cylindrical reactor, all portions of the stream will not
flow at the same rate and will exhibit different residence times and,
accordingly, are subject to different extents of degrees of reaction. The
average degrees of reaction following the residence time distribution proper to
laminar flow are given in the earlier publication1 and this paper extends the
treatment to that of turbulent flow.
In the earlier treatment of laminar flow
the ratio of average extent of reaction with non-interacting streams to that of
complete intermingling, or the C/Cm, is plotted against the ratio of the times
of flow with those of reaction (S). The C/Cm versus S curves are all above
unity and increase with increasing S, with the exception of very high orders of
chemical reaction for which values of C/Cm are all unity.
In the case of turbulent flow the values
of C/Cm are more nearly unity at all values of S.
A novel technique for residence time distribution (RTD) measurements in solids unit operations
