文献类型：期刊文献

英文题名：Effect of intermittent purge on O-2 production with rapid pressure swing adsorption technology

作者：Liu, Yingshu[1,2];Zhang, Quanli[1,2];Cao, Yongzheng[3];Yang, Xiong[1,2];Li, Ziyi[1,2];Liu, Wenhai[1,2];Habyarimana, Jean Baptiste[1,2];Cui, Yongkang[1,2];Wang, Haoyu[2,4];Yang, Ralph T.[5]

第一作者：Liu, Yingshu

通讯作者：Li, ZY[1];Li, ZY[2]

机构：[1]Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China;[2]Beijing Higher Inst Engn Res Ctr Energy Conservat, Beijing 100083, Peoples R China;[3]Changsha Qicen Med Technol Co Ltd, Changsha 410000, Hunan, Peoples R China;[4]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[5]Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA

第一机构：Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China

通讯机构：[1]corresponding author), Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China;[2]corresponding author), Beijing Higher Inst Engn Res Ctr Energy Conservat, Beijing 100083, Peoples R China.

年份：2021

卷号：27

期号：2

起止页码：181-189

外文期刊名：ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000591988400001)】；

基金：This paper obtained the support from the National Key R&D Program of China (Nos. 2017YFC0806304, 2020YFC 1512302), the National Natural Science Foundation of China (Nos. 21808012, 21676025), the Fundamental Research Funds for the Central Universities (Nos. FRF-GF-19-005A, FRF-IDRY-19-025, FRF-TP-20011A2), and the Beijing Natural Science Foundation (No. 8182019).

语种：英文

外文关键词：Rapid pressure swing adsorption (RPSA); Oxygen production; Intermittent purge; O-2 recovery; Bed size factor (BSF)

摘要：The rapid pressure swing adsorption (RPSA) technology has been widely used for applications including portable oxygen generators due to high O-2 productivities and low bed size factors (BSF, total amount of adsorbent per ton of O-2 produced per day, kg/TPDO2). The improvement of RPSA process has been a key issue for efficient O-2 production in terms of its generally lower O-2 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 O-2 recovery, purity, productivity and BSF. Experimental results show the improvement on O-2 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 O-2 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.