RESEARCH ARTICLE

Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds

  • Xinxin Che ,
  • Feng Wu ,
  • Xiaoxun Ma
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  • School of Chemical Engineering, Northwest University, Xi’an 710069, China

Received date: 16 May 2021

Accepted date: 22 Jul 2021

Published date: 15 Jun 2022

Copyright

2021 Higher Education Press

Abstract

An energy minimum multiscale model was adjusted to simulate the mesoscale structure of the flue gas desulfurization process in a powder-particle spouted bed and verified experimentally. The obtained results revealed that the spout morphology simulated by the adjusted mesoscale drag model was unstable and discontinuous bubbling spout unlike the stable continuous spout obtained using the Gidaspow model. In addition, more thorough gas radial mixing was achieved using the adjusted mesoscale drag model. The mass fraction of water in the gas mixture at the outlet determined by the heterogeneous drag model was 1.5 times higher than that obtained by the homogeneous drag model during the simulation of water vaporization. For the desulfurization reaction, the experimental desulfurization efficiency was 75.03%, while the desulfurization efficiencies obtained by the Gidaspow and adjusted mesoscale drag models were 47.63% and 75.08%, respectively, indicating much higher accuracy of the latter technique.

Cite this article

Xinxin Che , Feng Wu , Xiaoxun Ma . Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds[J]. Frontiers of Chemical Science and Engineering, 2022 , 16(6) : 909 -920 . DOI: 10.1007/s11705-021-2100-8

Acknowledgment

This work is supported by the National Natural Science Foundation of China (Grant No. 21878245).

Electronic Supplementary Material

Supplementary material is available in the online version of this article at https://dx.doi.org/10.1007/s11705-021-2100-8 and is accessible for authorized users.
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