Fine particle enhanced oxygen absorption

JIANG Jiazong; ZHAO Bo; CAO Meng; ZHUO Yuqun; WANG Shujuan

doi:10.3969/j.issn.0438-1157.2013.04.026

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Fine particle enhanced oxygen absorption

更新时间：2025-12-10

- Fine particle enhanced oxygen absorption
- CIESC Journal Issue 4, Pages: 1306-1311(2013)
- 作者机构：
  
  1. 清华大学热科学与动力工程教育部重点实验室,二氧化碳资源化利用与减排技术北京市重点实验室,北京,100084
  2. 华北电力大学,北京,102206
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.04.026
  CLC： K123
- Online First：05 April 2013，
  
  Published：05 April 2013
- 稿件说明：
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JIANG Jiazong, ZHAO Bo, CAO Meng, et al. Fine particle enhanced oxygen absorption[J]. CIESC Journal, 2013, (4): 1306-1311.
DOI：

JIANG Jiazong, ZHAO Bo, CAO Meng, et al. Fine particle enhanced oxygen absorption[J]. CIESC Journal, 2013, (4): 1306-1311. DOI： 10.3969/j.issn.0438-1157.2013.04.026.

摘要

Abstract

Gas-liquid mass transfer was studied during forced sulfite oxidation in the presence of active carbon particles in a stirred tank.The influence of temperatures from 30℃ to 50℃

solid loading of fine particles from 0 to 1.0 kg·m-3

stirring speeds from 50 to 400 r·min-1

and particle sizes on average O2 gas absorption rate were studied.Experimental results show that active carbon particles could improve gas-liquid mass transfer remarkably.At 30℃

with the increase of solid loading of micro-particles

the oxygen absorption enhancement factor increases to a maximum value at the solid loading of 0.6 kg·m-3

and then decreases due to the increase of gas-liquid mass transfer resistance.For active carbon particles

the mass enhancement factor is much higher with ultrasonic processing for particle size of 1 μm.The oxygen absorption rate and absorption enhancement factor increase with the increase of stirring speed due to the acceleration of surface renewal frequency.The enhancement factor decreases as temperature increases while absorption rate increases.The result indicates that the effect of temperature on the mass transfer enhancement is stronger than the effect of fine particles.

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