Hydrodynamics in gas-liquid-solids circulating fluidized beds with low solids holdups

LIU Jianhua; LIU Mingyan; HU Zongding

doi:10.3969/j.issn.0438-1157.2013.02.014

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Hydrodynamics in gas-liquid-solids circulating fluidized beds with low solids holdups

更新时间：2025-12-10

- Hydrodynamics in gas-liquid-solids circulating fluidized beds with low solids holdups
- CIESC Journal Issue 2, Pages: 504-516(2013)
- 作者机构：
  
  1. 天津大学化工学院,天津,300072
  2. 化学工程联合国家重点实验室(天津大学),天津,300072
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.02.014
  CLC： Q021.1
- Online First：05 February 2013，
  
  Published：05 February 2013
- 稿件说明：
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LIU Jianhua, LIU Mingyan, HU Zongding. Hydrodynamics in gas-liquid-solids circulating fluidized beds with low solids holdups[J]. CIESC Journal, 2013, (2): 504-516.
DOI：

LIU Jianhua, LIU Mingyan, HU Zongding. Hydrodynamics in gas-liquid-solids circulating fluidized beds with low solids holdups[J]. CIESC Journal, 2013, (2): 504-516. DOI： 10.3969/j.issn.0438-1157.2013.02.014.

摘要

应用基于互补金属氧化物半导体(complementary metal oxide semiconductor

CMOS)传感器的高速图像采集和处理技术

实验研究了低固含率条件下

低密度大孔吸附树脂固体颗粒气-液-固三相循环流化床的流体力学行为

分析了操作条件、液相物性、颗粒性质等对床内的固体颗粒循环速率、相含率、气泡运动等特性的影响

得到了具有合理物理解释的实验数据和结果。

Abstract

Hydrodynamics in gas-liquid-solids circulating fluidized beds with low solids holdups of resin particles was experimentally investigated with a high-speed image measurement and treatment technique of complementary metal oxide semiconductor.Influences of superficial liquid velocity

particle diameter and density

liquid surface tension and viscosity on the phase holdups

average gas bubble diameter

circulating rate of solids particles both in the riser and in the downer and bubble motions were investigated. Experimental data with reasonable physical explanations of the hydrodynamics of gas-liquid-solids circulating fluidized beds were obtained.

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