文献类型：期刊文献

英文题名：Two-Dimensional Modeling of Pressure Swing Adsorption (PSA) Oxygen Generation with Radial-Flow Adsorber

作者：Yang, Xiong[1,2];Wang, Haoyu[3];Chen, Jiangwei[1];Li, Ziyi[1,2];Liu, Yingshu[1,2];Zhang, Chuanzhao[3];Xing, Yi[1,2]

第一作者：Yang, Xiong

通讯作者：Li, ZY[1];Liu, YS[1];Li, ZY[2];Liu, YS[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]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China

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：2019

卷号：9

期号：6

外文期刊名：APPLIED SCIENCES-BASEL

收录：;Scopus(收录号：2-s2.0-85063741434);WOS:【SCI-EXPANDED(收录号:WOS:000465017200111)】；

基金：This research was funded by the National Natural Science Foundation of China (51604016, 21808012, 21676025), National Key R&D Program of China (No. 2017YFC0806304), Beijing Natural Science Foundation (No. 8182019), the National Postdoctoral Program for Innovative Talents (No. BX201700029), the China Postdoctoral Science Foundation (No. 2018M630075), the Fundamental Research Funds for the Central Universities (No. FRF-TP-17-063A1, FRF-BD-18-015A).

语种：英文

外文关键词：radial flow; adsorber; pressure swing adsorption; CFD modeling; oxygen generation

摘要：Radial flow is an important type of flow direction for large-scale pressure swing adsorption (PSA) oxygen generation systems. In this study, a numerical simulation of a PSA oxygen generation process based on radial-flow adsorbers was performed with two-dimensional CFD modeling. The gas distribution, the maldistribution factor and the pressure difference were comparatively investigated at each flow type of the radial-flow adsorber. Considering the gas adsorption performance, the results indicated that the centripetal -flow radial adsorber has the best flow characteristics for the PSA process. The oxygen purity distribution within the adsorption bed was studied to compare centripetal and centrifugal -flows, and the former was shown to perform better on oxygen enrichment and adsorbent desorption. The steady state was achieved after eight cycles for the centripetal- adsorber and each of the four steps of the PSA process was explored in detail to show the advantageous properties for oxygen generation in terms of adsorption and desorption. The relationships between the product flow rate and the oxygen purity and recovery were further investigated.