
304 Green Chemical Engineering
of solid particles in the reactor is obtained by conducting a tracer test in which a xed
quantity of marked solid particles (tracer) is added at the reactor inlet and the number of
marked solid particles coming out of the vessel at different time intervals are recorded.
These recorded values are given in the below table.
Time (θ) (min)
0 4 8 12 16 20 24 28 32 36 40 44
Number of tracer particles n(θ)
0 1 8 20 50 100 50 24 10 5 1 0
Calculate the average conversion of solids in the reactor.
Time for complete conversion of 2 mm particles τ = 1 h = 60 min.
Mean conversion of solid particles x
B
is
xX
BB
=
∞
∫
()()θθθ
0
where f