cfd simulation of membrane reactor for dehydrogenation of ethylbenzene to styrene

In this study, dehydrogenation of ethylbenzene to styrene was studied in an isothermal high-temperature shell-and tube membrane reactor (mr) with a pd-ag membrane and a commercial iron oxide-based catalyst (component: 〖fe_2 o〗_3, k_2 co_3, mgo, cr_2 o_3, cro_3)# a 2d-axisymmetric computational fluid dynamic (cfd) model was developed to investigate the effect of operational conditions on h2 separation in dense pd-ag membrane reactor (mr)# various operating parameters including reaction temperature, pressure and liquid hour space velocity (lhsv) have been considered on hydrogen mole fraction distribution on the membrane# results showed lhsv effect on mr performance is considerable respect to other parameters so that by changing the lhsv from 0#36 to 3 the amount of hydrogen changes from 0 to 0#019 in the retentate output#