Desorption of VOC from polymer adsorbent in multistage fluidized bed

Jiale Zheng; Wenli Song; Lin Du; Lina Wang; Songgeng Li

doi:10.1016/j.cjche.2020.02.001

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Desorption of VOC from polymer adsorbent in multistage fluidized bed

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Desorption of VOC from polymer adsorbent in multistage fluidized bed
- Desorption of VOC from polymer adsorbent in multistage fluidized bed
- 中国化学工程学报（英文版） 2020年第6期页码：1709-1716
- Affiliations：
  
  1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
  2. University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
  
  This work was supported by the National Key R&D Program of China (2018YFC1901300), the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA 21040400) and the National Natural Science Foundation of China(21978305).
- DOI：10.1016/j.cjche.2020.02.001
  中图分类号：
- 纸质出版：2020
- Accepted：
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Jiale Zheng, Wenli Song, Lin Du, 等. Desorption of VOC from polymer adsorbent in multistage fluidized bed[J]. 中国化学工程学报（英文版）, 2020,(6):1709-1716.

Jiale Zheng, Wenli Song, Lin Du, et al. Desorption of VOC from polymer adsorbent in multistage fluidized bed[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1709-1716.
Jiale Zheng, Wenli Song, Lin Du, 等. Desorption of VOC from polymer adsorbent in multistage fluidized bed[J]. 中国化学工程学报（英文版）, 2020,(6):1709-1716. DOI： 10.1016/j.cjche.2020.02.001.

Jiale Zheng, Wenli Song, Lin Du, et al. Desorption of VOC from polymer adsorbent in multistage fluidized bed[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1709-1716. DOI： 10.1016/j.cjche.2020.02.001.

摘要

Abstract

The desorption process of volatile organic compounds (VOC) from a polymer adsorbent in counter-current multistage fluidized bed was studied. And a mathematical model considering the mass transfer dynamics was developed

which was validated from experiment data. The gaseous ethyl acetate mass transfer was discussed

and the limiting step is the intraparticle mass transfer of the desorption process. The value of intraparticle mass transfer coefficient is between 1.85×10

-6

and 1.38×10

-5

m·s

-1

under temperature of 100-160℃. Experiments under different operating conditions were carried out. The effects of operating conditions such as gas-solid flow ratio

gas inlet temperature and total stage number of multistage fluidized bed on outlet VOCs concentration and desorption efficiency were discussed. The maximum outlet VOCs concentration and corresponding desorption efficiency of the multistage fluidized bed desorber was calculated under different gas inlet temperatures and total stage numbers.

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