基于金属氢化物的氢气纯化反应器参数优化

Metal hydrides Adsorption Purification (MHAP) is regarded as an effective method for hydrogen separation and purification due to the selective chemical adsorption of hydrogen. This paper investigated the optimal selection of materials for MH reactors, from the perspective of materials to operational conditions. The study collated and analysed the hydrogen storage performance of materials in a mixture of impurities, and identified a reliable set of MH materials. The hydrogen absorption and discharge reaction thermodynamics of the materials were determined by PCT experiments, and the control equations and coupled models were obtained by considering the complex physical conditions of heat transfer and flow in the reactor. The design and operational parameters of the reaction vessel were further investigated through the coupled model, with the aim of determining their impact on the purity and loss of hydrogen in the process. The simulation results indicate that, at a temperature of 353 K, a flow rate of 0.05 kg.m^-2.s^-1 results in a hydrogen purity of 99.999% at the outlet within 505 s.