Abstract:
Water gas shift reaction is a heterogeneous catalytic reaction. The reactions’
equilibrium Does not allow it to complete in one stage. For maximum conversions, a
two-stage reactor system with interstage cooling is conventionally used in industry.
However, huge catalyst volumes are required for achieving maximum conversion.
This project aims to propose three cases in which carbon monoxide desired
conversions are achieved in single stage isothermally. Reduced catalyst volumes were
required if selective hydrogen separation is carried out with the help of Palladium
membranes prior to the reaction or is carried out simultaneously with the reaction in
membrane reactors. The proposed solutions gave realistically reduced catalyst
volumes, hence, reduced the operating cost of the process. Design of high temperature
shift reactors, membranes and membrane reactor was done with the aid of Polymath
6.0. The behavior of membranes and membrane reactor was modelled
mathematically on Polymath 6.0. The calculated results correlated with the results of
the simulation achieved using Aspen HYSYS. The economical and HAZOP analysis was
also done for all the cases
