Numerical simulation of circulating fluidization roasting desulfurization of high-sulfur bauxite based on computational particle fluid dynamics method

Langfeng Fan; Chengming Xie; Qijin Wei; Hongliang Zhao; Rongbin Li; Yongmin Zhang; Fengqin Liu; Hong Yong Sohn

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Numerical simulation of circulating fluidization roasting desulfurization of high-sulfur bauxite based on computational particle fluid dynamics method

Updated：2026-01-06

- Numerical simulation of circulating fluidization roasting desulfurization of high-sulfur bauxite based on computational particle fluid dynamics method
- Chinese Journal of Chemical Engineering Vol. 82, Issue 6, Pages: 138-152(2025)
- Affiliations：
  
  1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing,Beijing,China,100083
  2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing,China,100083
  3. BGRIMM Technology Group,Beijing,China,100160
  4. State Key Laboratory of Heavy Oil Processing, China University of Petroleum,Beijing,China,102249
  5. Department of Materials Science and Engineering, The University of Utah,UT,Salt Lake City,USA,84112
- Author bio：
- Funds：
- DOI：
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- Published：2025
- Accepted：
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Langfeng Fan, Chengming Xie, Qijin Wei, Hongliang Zhao, Rongbin Li, Yongmin Zhang, Fengqin Liu, Hong Yong Sohn. Numerical simulation of circulating fluidization roasting desulfurization of high-sulfur bauxite based on computational particle fluid dynamics method[J]. Chinese Journal of Chemical Engineering, 2025, 82(6): 138-152.
DOI：

Langfeng Fan, Chengming Xie, Qijin Wei, Hongliang Zhao, Rongbin Li, Yongmin Zhang, Fengqin Liu, Hong Yong Sohn. Numerical simulation of circulating fluidization roasting desulfurization of high-sulfur bauxite based on computational particle fluid dynamics method[J]. Chinese Journal of Chemical Engineering, 2025, 82(6): 138-152. DOI：

摘要

Abstract

As a pyrometallurgical process

circulating fluidized bed (CFB) roasting has good potential for application in desulfurization of high-sulfur bauxite. The gas-solid distribution and reaction during CFB roasting of high-sulfur bauxite were simulated using the computational particle fluid dynamics (CPFD) method. The effect of primary air flow velocity on particle velocity

particle volume distribution

furnace temperature distribution and pressure distribution were investigated. Under the condition of the same total flow of natural gas

the impact of the number of inlets on the desulfurization efficiency

atmosphere mass fraction distribution and temperature distribution in the furnace was further investigated.

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