Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed

Ali Can Sivri; Amoolya Lalsare; Gao Xi

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Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed

Updated：2026-08-24

- Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed
- Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed
- 中国化学工程学报（英文） 2026年94卷第6期页码：280-290
- Affiliations：
  
  Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506, USA
  Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
  Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
  Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Author bio：
  
  Corresponding author. E-mail address: acsengresearch@gmail.com(A.C. Sivri)
- Funds：
- DOI：
  中图分类号：
- 收稿：2025-07-20，
  
  修回：2025-11-03，
  
  录用：2025-11-04，
  
  网络首发：2026-02-09，
  
  纸质出版：2026-06
- Accepted：
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Ali Can Sivri, Amoolya Lalsare, Gao Xi. Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed[J]. 中国化学工程学报（英文）, 2026,94(6):280-290.

Ali Can Sivri, Amoolya Lalsare, Gao Xi. Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed[J]. Chinese Journal of Chemical Engineering, 2026, 94(6): 280-290.
Ali Can Sivri, Amoolya Lalsare, Gao Xi. Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed[J]. 中国化学工程学报（英文）, 2026,94(6):280-290. DOI：

Ali Can Sivri, Amoolya Lalsare, Gao Xi. Temperature-dependent fluidization behavior of silica sand in a deep bubbling fluidized bed[J]. Chinese Journal of Chemical Engineering, 2026, 94(6): 280-290. DOI：

摘要

Abstract

This study investigates the impact of temperature on the fluidization behavior of a bench-scale deep fluidized bed using Group B silica sand particles as the material. Covering a temperature range of 200℃ to 800℃

the experiments employed a transparent cold flow rig for visualizing bed behavior and a bench-scale bubbling fluidized bed reactor for pressure drop measurements at elevated temperatures. Pressure differentials over the distributor plate and bed were measur

ed at two different bed aspect ratios (3.33 and 4.83). Results show that increasing temperature from ambient to 800℃ led to a significant reduction in the minimum fluidization velocity (

)

by 27% for 200 g and 35% for 300 g bed materials. Bed aspect ratio had negligible effects on

but notably influenced bed pressure drop. Experimentally determined Archimedes (

) and Reynolds (

) numbers differed from empirical correlations

highlighting the need for further investigation into temperature effects on fluidization hydrodynamics. A new correlation for

prediction

based on experimental data

exhibited a low average error of 7.4%. These findings

along with detailed material characteristics

offer insights for future research on temperature effects in narrow-deep bubbling fluidized beds

particularly at low

. The experimental data serve as a benchmark for verifying

validating

and optimizing numerical models and scaling studies.

关键词

Keywords

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