Optimal design of gas distributor in fluidized bed for synthesis of silicone monomer  

作　　者：Shanlin Du Guoqiang Lv Wenhui Ma Guangkai Gu Boqiang Fu 

机构地区：[1]Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming,650093,China [2]State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province,Kunming,650093,China

出　　处：《Particuology》2023年第12期115-128,共14页颗粒学报（英文版）

基　　金：The authors are grateful to the financial support by the Science and Technology Planning Project of the Science and Technology Department of Yunnan Province(grant No.202002AB080002).

摘　　要：The structure of the gas distributor is closely related to the production efficiency of organosilicon monomers.To improve the production efficiency of organosilicon monomers,this study uses Eulerian-Eulerian two fluid model and proposes a design formula for the gas distributor to optimize the gas distributor.It is proposed that the pressure drop of the gas distributor,the velocity nonuniformity coefficient,the relative standard deviation of the solid holdup,and the solid particle dispersion coefficient are used to evaluate the performance of the gas distributor.The results show that the performance of the gas distributor is significantly improved when the opening ratioΦ=0.53%is optimized toΦ=0.18%,in which the relative standard deviation of the solid holdup is reduced by 22%,and the solid particle dispersion coefficient is reduced by 40%.On this basis,this article studies the influence of different arrangements of vent holes on gas-solid fluidization characteristics.The results show that the circular arrangement of vent holes is helpful to the mixing of gas and solid.

关 键 词：Fluidizedbed reactor Gas distributor Opening ratio Arrangement 

分 类 号：O35[理学—流体力学]