当前位置: X-MOL 学术Adsorption › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of intermittent purge on O 2 production with rapid pressure swing adsorption technology
Adsorption ( IF 3.0 ) Pub Date : 2020-11-24 , DOI: 10.1007/s10450-020-00284-7
Yingshu Liu , Quanli Zhang , Yongzheng Cao , Xiong Yang , Ziyi Li , Wenhai Liu , Jean Baptiste Habyarimana , Yongkang Cui , Haoyu Wang , Ralph T. Yang

The rapid pressure swing adsorption (RPSA) technology has been widely used for applications including portable oxygen generators due to high O2 productivities and low bed size factors (BSF, total amount of adsorbent per ton of O2 produced per day, kg/TPDO2). The improvement of RPSA process has been a key issue for efficient O2 production in terms of its generally lower O2 recovery as compared to other processes. In this work, a dual-column RPSA oxygen production system with an intermittent purge step (intermittently switching between purge and interruption) was designed to investigate the effects of interruption frequency (the number of interruptions during a purge step) and times on the O2 recovery, purity, productivity and BSF. Experimental results show the improvement on O2 production performance using the intermittent purge step in comparison to conventional continuous purge step. Under the optimized interruption frequency of 2 and time of 0.3 s, the O2 recovery, purity and productivity were increased from 36 to 39.2%, 89.5 to 93%, and 6.24 to 6.49 mmol/kg/s, respectively, while the BSF was decreased from 57.94 to 55.75 kg/TPDO2.



中文翻译:

快速变压吸附技术间歇性吹扫对O 2产生的影响

由于高O 2生产率和低床尺寸因子(BSF,每天生产的每吨O 2吸附剂总量,kg / TPDO 2),快速变压吸附(RPSA)技术已被广泛用于包括便携式制氧机在内的应用中。)。RPSA工艺的改进一直是有效生产O 2的关键问题,因为与其他工艺相比,其通常较低的O 2回收率。在这项工作中,设计了具有间歇吹扫步骤(在吹扫和中断之间间歇切换)的双塔式RPSA制氧系统,以研究中断频率(吹扫步骤中的中断次数)和时间对O 2的影响。回收率,纯度,生产率和BSF。实验结果表明,与常规的连续吹扫步骤相比,使用间歇吹扫步骤可提高O 2的生产性能。在最佳中断频率2和0.3 s的时间下,O 2的回收率,纯度和生产率分别从36%增至39.2%,89.5%增至93%/ kg / s和6.24至6.49 mmol / kg / s,而BSF为从57.94降至55.75 kg / TPDO 2

更新日期:2020-11-25
down
wechat
bug