Influence of internal components on gas-solid flow characteristics in fluidized bed reactor for organic silicon monomer synthesis  

作　　者：Xiaohan Guo Fei Gao Xuehui Xu Jianbo Zhao Yinghou Li Guanghui Chen Pan Zhang 

机构地区：[1]Key Laboratory of Multiphase Flow Reaction and Separation Engineering of Shandong Province,College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao,266042,China [2]College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao,266043,China

出　　处：《Particuology》2025年第1期294-311,共18页颗粒学报(英文版)

基　　金：supported by Major Scientific and Technological Innovation Project of Shandong Province(grant No.2021ZDSYS13);Natural Science Foundation of Shandong Province(grant No.ZR2021MB135);Natural Science Foundation of Shandong Province(grant No.ZR2021ME224).

摘　　要：Internal components play a crucial role in the synthesis of organic silicon monomer in gas-solid fluidized bed reactors (FBRs). Finger-tube (F-tube) and U-tube components are commonly utilized to control the temperature and ensure its homogeneity in FBRs, thereby guaranteeing a high selectivity of the target product. The main objective of this work is to better understand the influence of F-tube and U-tube on the hydrodynamics in FBRs. Computational fluid dynamics (CFD) combined with the particle image velocimetry (PIV) technique were employed to explore the flow characteristics. The numerical data were validated against the particle velocity using an image processing technique. The results revealed that the F-tube increases the bed voidage by 3.2% and reduces the pressure drop by 13.0%. While the U-tube increases the bed voidage by 2.1% and reduces the pressure drop by 11.2%. These internals improve fluidization by ensuring even particle distribution and enhancing intra-particle circulation compared to reactors without internals.

关 键 词：Internal components Gas-solid fluidized bed reactors Fluid dynamics Particle image velocimetry system 

分 类 号：O35[理学—流体力学]