Dehydrogenation of Propane Simultaneous Solution
(Felder and Rousseau, 2005, pp. 135–136) Propane is dehydrogenated to form propylene in a catalytic reactor:
C H C H H 3 8 3 6 2 → + .
The process, shown in Figure P4.9, is to be designed for
a 95% overall conversion of propane. The reaction products
are separated into two streams: The first, which contains H2,
C3H6, and 0.555% of the propane that leaves the reactor, is
taken off as product; the second stream, which contains the
balance of the unreacted propane and 5% of the propylene in
the first stream, is recycled to the reactor. Calculate the composition of the product, the ratio (moles recycled)/(mole fresh
feed), and the single-pass conversion using the simultaneous
solution approach.