摘要
为了开发用于SARS病人的微型变压吸附制氧机,实验研究了吸附时间、反吹比、产品气量、吸附塔高径比以及吸附剂种类等工艺参数对微型变压吸附分离空气制氧装置的产品纯度和回收率的影响.实验结果表明:在变压吸附微型化条件下,最佳的吸附时间为12 s和反吹比为0.5;随着产品气流量的增加,产品气纯度下降,而回收率升高,在所要求的纯度下,回收率能达到19％;吸附剂的种类对变压吸附制氧过程有重要的影响;在微型化条件下,合适吸附塔的高径比为3.7～4.0之间.
To develop a special miniature PSA oxygen concentrator for SARS patients, the effects of operating parameters, such as production duration, purge-to-product ratio, product flowrate, length-to-diameter ratio of the columns and properties of adsorbents, on the product purity and recovery of the miniature PSA oxygen system were experimentally investigated. The experimental results show that, under miniaturization conditions for PSA process, the optimal production duration is 12 s and the purge-to-product ratio is 0.5. The product purity decreases and the recovery increases when the product flowrate increase. When the product purity is above 90%, the product recovery is about 19%. The properties of adsorbent has significant influences on performances. The product purity increases with the length-to-diameter ratio of column increasing and the proper value of the ratio is between 3.7 and 4.0.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2004年第1期110-114,共5页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.50344005)
