Study on variable mass flow laws in π-shaped centripetal radial flow adsorber

Haoyu WANG; Yingshu LIU; Chuanzhao ZHANG; Xiong YANG; Jiangwei CHEN

doi:10.11949/0438-1157.20190231

您当前的位置：

首页 >

文章列表页 >

Study on variable mass flow laws in π-shaped centripetal radial flow adsorber

更新时间：2026-03-25

- Study on variable mass flow laws in π-shaped centripetal radial flow adsorber
- CIESC Journal Vol. 70, Issue 9, Pages: 3385-3395(2019)
- 作者机构：
  
  1. 北京联合大学生物化学工程学院,北京,100023
  2. 北京科技大学能源与环境工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190231
  CLC： TG142.71
- Online First：05 September 2019，
  
  Published：05 September 2019
- 稿件说明：
移动端阅览
Haoyu WANG, Yingshu LIU, Chuanzhao ZHANG, et al. Study on variable mass flow laws in π-shaped centripetal radial flow adsorber[J]. CIESC Journal, 2019, 70(9): 3385-3395.
DOI：

Haoyu WANG, Yingshu LIU, Chuanzhao ZHANG, et al. Study on variable mass flow laws in π-shaped centripetal radial flow adsorber[J]. CIESC Journal, 2019, 70(9): 3385-3395. DOI： 10.11949/0438-1157.20190231.

摘要

对径向流吸附器内变压吸附(PSA)制氧的变质量流动规律进行研究，有助于准确掌握吸附过程及床层内的变量因素对制氧性能的影响。对π型向心径向流吸附器建立气固耦合的两相吸附模型，并对其PSA制氧过程进行了数值模拟研究，得到了床层内氧气浓度分布、温度分布以及产品气浓度的变化规律。结果表明：首次循环结束时床层内氧气最高摩尔分数可达66.02%，回收率29.2%。非稳定循环期间，氧气摩尔分数从66.02%升高至 97.5%，回收率从29.2%提高至38.5%。循环达到稳定后，床层内氧气摩尔分数最高可达98.6%，回收率38.9%左右，且达到稳定状态后床层内气固两相温差减小，逐渐达到热平衡。获得了吸附器内部气体与吸附剂两相间的传质、传热过程，为π型向心径向流吸附器用于PSA制氧提供技术支持。

Abstract

Studying the variable mass flow law of pressure swing adsorption (PSA) in the radial flow adsorber can help to accurately grasp the influence of the adsorption process and the variable factors in the bed on the oxygen production performance. An air-solid two-phase pressure swing adsorption model is established for the π-shaped centripetal radial flow adsorber

axial oxygen purity profiles

temperature wave and oxygen concentration for product gas are comparatively studied by using this model. The results show that the oxygen purity of 66.02% and the recovery of the production of 29.2% can be obtained in the outlet after the first PSA cycle. The oxygen purity increases from 66.02% to 97.5% and the recovery of the production increases from 29.2% to 38.5% during the unsteady state. The product oxygen purity and recovery are achieved to be 98.6% and 38.9% at the end of each steps in steady state

and finally the temperature difference of air-solid two-phase gradually decreases and reaches thermal balance. The mass and heat transfer between the air and the adsorbent are obtained

which provides reference for π-shaped centripetal in the PSA for oxygen production.

关键词

Keywords

references

Views

424

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Simulation and analysis of oxygen production process by six-bed pressure swing adsorption process

Numerical simulation and verification of heat and mass transfer characteristics in honeycomb hydrogel adsorption bed

Simulation, experimentation and analyzation of two stage pressure swing adsorption process for CO2 capture

Effect of two-step pressurization with intermediate gas on rapid vacuum pressure swing adsorption process for oxygen generation

Flow characteristics of radial flow adsorber and its structure parameters optimization

Related Author

KONG Deqi

ZHANG Yingying

WU Wenling

MA Jun

SONG Zhenxing

ZHANG Donghui

ZHANG Yanjun

Guodong ZHONG

Related Institution

School of Chemical Engineering and Technology, Tianjin University, Chemical Engineering Research Center, State Key Laboratory of Chemical Engineering

Institute of Medical Support Technology, Academy of System Engineering, Academy of Military Sciences

School of Energy and Power Engineering，University of Shanghai for Science and Technology

School of Mechanical Engineering, Shanghai Jiao Tong University

State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University

⁰