Here we simulate the production of styreren in a catalytic Plug flow reactor.
Styrene is produced by catalytic dehydrogenation of ethylbenzene at temperatures starting from 630◦C and pressures slightly above atmospheric pressure in the presence of water steam.
Two main side reactions take place in this process: pyrolysis of ethylbenzene to benzene and ethylene and ethyl-benzene hydrodealkylation, where toluene and methane are produced.

Using Aspen HYSYS, we shall calculate:
I. composition, temperature, and pressure profile, along the reactor length
II. conversion of ethylbenzene and selectivity to styrene