With
regard to methanol synthesis, the equilibriumreactor will take
into consideration the effect of inert gas (N2) on methanol
production, as is also suggested in the literature [19,20]. For the
REquil reactor, the product compositions were derived under
the circumstance that all the reactions specified reached
chemical equilibrium. PengeRobinson equation of state was
the thermal package adopted for this process simulation as
seen in the literature [21e23]. In addition, the PengeRobinson-
Boston-Mathias (PR-BM) was also tested for the syngas reactions
but had no appreciable differences. The involved reactions
are listed as follows