Multi-objective Performance Optimization of HI Decomposition Membrane Reactor Under Different Sweep Modes
A finite time thermodynamic(FTT)model of HI decomposition membrane reactor un-der different sweep modes is established.The sweep flow rate,reaction inlet pressure,permeable membrane thickness and reactor length are taken as decision variables,and the multi-objective opti-mization is carried out to maximize HI conversion rate,H2 recovery rate and total entropy generation rate.It is found that the HI conversion rate and H2 recovery rate are consistent to some extent within a given range of decision variables,but they cannot reach the optimum with the total entropy gener-ation rate at the same time.Compared with the co-current sweep mode,the target values of Pareto front have higher HI conversion and H2 recovery in the countercurrent sweep mode.Different deci-sion methods are used to select the optimal solution.TOPSIS decision point in cocurrent mode and LINMAP decision point in counter-current mode had smaller deviation factors and could be used as the optimal solution for reactor parameter design.