Rapid cycle pressure swing adsorption (RCPSA) characterized by short cycle time permits adsorbents to be used more frequently and increases process productivity. A rotary valve multi-bed RCPSA process is proposed to improve the performance of miniature oxygen concentrator. The RCPSA air separation system is highly integrated by four adsorbent beds and a rotary valve. The effects of process parameters on the performance of the RCPSA system were conducted by experiments. Results showed that the system could produce 1 L min⁻¹ of ~ 92% O₂ with ~ 30% of oxygen recovery and ~ 78 kg·TPD⁻¹ of bed size factor (BSF) from compressed air at low adsorption and desorption pressure ratio (~ 250:101 kPa). The minimum BSF with ~ 5 s optimal cycle time is a sharp decline with increasing of pressure ratio. However, a reversed trend between BSF and unit power at different pressure ratios is prominently emerged.

快速循环变压吸附（RCPSA）的特点是循环时间短，因此可以更频繁地使用吸附剂，并提高了生产效率。为了提高微型制氧机的性能，提出了一种旋转阀多床RCPSA工艺。RCPSA空气分离系统由四个吸附床和一个旋转阀高度集成。通过实验进行了工艺参数对RCPSA系统性能的影响。结果表明，该系统可产生1 L min ^-1的〜92％O _2，具有约30％的氧气回收率和〜78 kg·TPD ^-1低吸附和解吸压力比（〜250：101 kPa）下压缩空气中床尺寸因子（BSF）的变化。最佳循环时间约为5 s的最小BSF随着压力比的增加而急剧下降。然而，在不同的压力比下，BSF和单位功率之间出现了相反的趋势。