Simulation and experiment of six-bed PSA process for air separation with rotating distribution valve

doi:10.1016/j.cjche.2021.03.027

Chinese Journal of Chemical Engineering ›› 2022, Vol. 42 ›› Issue (2): 329-337.DOI: 10.1016/j.cjche.2021.03.027

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Simulation and experiment of six-bed PSA process for air separation with rotating distribution valve

Tao Tian¹, Yayan Wang², Bing Liu², Zhaoyang Ding², Xinxi Xu¹, Meisheng Shi¹, Jun Ma¹, Yanjun Zhang¹, Donghui Zhang²

1. Institute of Medical Support Technology, Academy of System Engineering of Academy of Military Science of Chinese PLA, Tianjin 300161, China;
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received:2020-05-07 Revised:2021-03-17 Online:2022-03-30 Published:2022-02-28
Contact: Xinxi Xu,E-mail:xuxx1@sohu.com;Donghui Zhang,E-mail:donghuizhang@tju.edu.cn
Supported by:
This work is supported by Major military logistics research projects (AWS13Z006) and National Key Research and Development program of China (2017YFC0806404).

Simulation and experiment of six-bed PSA process for air separation with rotating distribution valve

Tao Tian¹, Yayan Wang², Bing Liu², Zhaoyang Ding², Xinxi Xu¹, Meisheng Shi¹, Jun Ma¹, Yanjun Zhang¹, Donghui Zhang²

1. Institute of Medical Support Technology, Academy of System Engineering of Academy of Military Science of Chinese PLA, Tianjin 300161, China;
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

通讯作者: Xinxi Xu,E-mail:xuxx1@sohu.com;Donghui Zhang,E-mail:donghuizhang@tju.edu.cn
基金资助:
This work is supported by Major military logistics research projects (AWS13Z006) and National Key Research and Development program of China (2017YFC0806404).

Abstract

Abstract: In this work, a six-bed pressure swing adsorption (PSA) process was investigated to produce medical oxygen from air, which uses the combination of six-way rotating distribution valve and PSA and has the main advantage of effectively saving space compared to the traditional two-bed or four-bed PSA process and can obtain greater productivity. The mathematical model of adsorption beds was developed based on the separation mechanism and the interaction among different equipment. Moreover, a pilot-scale device has been constructed to verify the accuracy of mathematical model by experiment. The oxygen product conformed to the medical standard (>93% (vol)) with a recovery of over 57%. Some related parameters were also discussed in detail, such as step time, ratio of length to the diameter, flow rate of product.

Key words: Pressure swing adsorption, Air separation, Mathematical modeling, Rotating distribution valve

摘要： In this work, a six-bed pressure swing adsorption (PSA) process was investigated to produce medical oxygen from air, which uses the combination of six-way rotating distribution valve and PSA and has the main advantage of effectively saving space compared to the traditional two-bed or four-bed PSA process and can obtain greater productivity. The mathematical model of adsorption beds was developed based on the separation mechanism and the interaction among different equipment. Moreover, a pilot-scale device has been constructed to verify the accuracy of mathematical model by experiment. The oxygen product conformed to the medical standard (>93% (vol)) with a recovery of over 57%. Some related parameters were also discussed in detail, such as step time, ratio of length to the diameter, flow rate of product.

关键词: Pressure swing adsorption, Air separation, Mathematical modeling, Rotating distribution valve

Tao Tian, Yayan Wang, Bing Liu, Zhaoyang Ding, Xinxi Xu, Meisheng Shi, Jun Ma, Yanjun Zhang, Donghui Zhang. Simulation and experiment of six-bed PSA process for air separation with rotating distribution valve[J]. Chinese Journal of Chemical Engineering, 2022, 42(2): 329-337.

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Simulation and experiment of six-bed PSA process for air separation with rotating distribution valve

Simulation and experiment of six-bed PSA process for air separation with rotating distribution valve

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