RPSA technology can offer a more compact, cost-effective and energy-efficient solution for H₂ recovery when compared to conventional PSA. The adsorption rate of adsorbents has become a key factor affecting the development of RPSA. Activated carbon, widely used as adsorbent for CO₂ in H₂ purification is in urgent need for further development to suitable for RPSA system. In this study, a structured activated carbon adsorbent was prepared using the dip-coating method, with nickel foam as a framework. The adsorption characteristics of the material for CO₂ adsorption at different adsorption pressures, volume flow rates, and lamellar spacing parameters were investigated, and the kinetic behaviour was studied by the breakthrough curve. The results showed that the activated carbon was bonded to the nickel foam skeleton via an organic-inorganic binder with excellent mechanical strength. Structured adsorbents bed has uniform gas flow distribution, the pressure drop is about 1 / 3 - 1 / 7 of particles packed bed, and the breakthrough curve was sharper than particles. It indicated that the mass-transfer resistance in the structured adsorbents is low and has high effective diffusivity for CO₂. The adsorption rate constant was calculated using the Yoon-Nelson model, and the correlation between the model calculation data and experimental data was greater than 0.98. Structured activated carbon adsorbent manufactured by dip-coating method, has a higher mass transfer coefficient and a shorter mass transfer zone length. It is a potential alternative adsorbent for RPSA.

与传统的PSA相比，RPSA技术可以为H ₂回收提供更紧凑，经济高效的能源解决方案。吸附剂的吸附速率已成为影响RPSA发展的关键因素。迫切需要进一步开发适用于RPSA系统的，在H ₂纯化中广泛用作CO ₂吸附剂的活性炭。在这项研究中，使用浸涂法以泡沫镍为骨架制备了结构化活性炭吸附剂。材料对CO ₂的吸附特性研究了在不同的吸附压力，体积流量和层间距参数下的吸附，并通过穿透曲线研究了动力学行为。结果表明，活性炭通过具有优异机械强度的有机-无机粘合剂结合到泡沫镍骨架上。结构化吸附剂床的气流分布均匀，压降约为颗粒填充床的1/3-1/7，穿透曲线比颗粒更锐利。结果表明，结构化吸附剂的传质阻力低，对CO _2的有效扩散率高。。使用Yoon-Nelson模型计算吸附速率常数，模型计算数据与实验数据之间的相关性大于0.98。通过浸涂法制造的结构化活性炭吸附剂具有较高的传质系数和较短的传质区长度。它是RPSA的潜在替代吸附剂。