Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors

Shuaiqiang Yang; Lin Du; Guangchao Ding; Runguo Liu; Wenli Song; Songgeng Li

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Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors

Full Length Article | Updated：2026-01-06

- Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors
- Chinese Journal of Chemical Engineering Vol. 65, Issue 1, Pages: 35-42(2024)
- Affiliations：
  
  1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
  2. School of Petrochemical Engineering, Yan’an Vocational and Technical College, Yan’an,China,716000
  3. Sino-Danish College, University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
- DOI：
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- Published：2024
- Accepted：
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Shuaiqiang Yang, Lin Du, Guangchao Ding, Runguo Liu, Wenli Song, Songgeng Li. Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors[J]. Chinese Journal of Chemical Engineering, 2024, 65(1): 35-42.
DOI：

Shuaiqiang Yang, Lin Du, Guangchao Ding, Runguo Liu, Wenli Song, Songgeng Li. Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors[J]. Chinese Journal of Chemical Engineering, 2024, 65(1): 35-42. DOI：

摘要

Abstract

Dust removal from pyrolytic vapors at high temperatures is an obstacle to the industrialization of the coal pyrolysis process. In this work

a granular bed with expanded perlites as filtration media was designed and integrated into a 10 t·d

-1

coal pyrolysis facility. The testing results showed that around 97.56% dust collection efficiency was achieved. As a result

dust content in tar was significantly lowered. The pressure drop of the granular bed maintained in the range of 356 Pa to 489 Pa. The dust size in the effluent after filtration exhibited a bimodal distribution

which was attributed to the heterogeneity of the dust components. The effects of filtration bed on pyrolytic product yields were also discussed. A modified filtration model based on the macroscopic phenomenological theory was proposed to describe the performance of the granular bed. The computation results were well agreed with the experimental data.

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State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences

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