能源工程2024，Vol.44Issue(4)：56-64,9.DOI:10.16189/j.nygc.2024.04.010
脱硫吸收塔深度除尘机理研究
Research on the mechanism of deep dust removal in desulfurization absorber
姜雅洲 1邓丽萍 1刘文榉 1葛春亮1
作者信息
- 1. 浙江浙能科技环保集团股份公司,浙江 杭州 311100
- 折叠
摘要
Abstract
In this paper,the mechanism of deep removal of submicron and micron-sized particles in the gas-liquid-solid three-phase flow field inside a limestone-gypsum wet flue gas desulfurization(FGD)tower was investigated.The Eulerian-Lagrangian model was used to simulate the particle capturing process of single droplet,and the distribution and capturing of particles with different sizes in FGD tower were analyzed.The results show that,for submicron particles,the dominant mechanism on particle capturing in FGD tower is derived from thermophoresis effect,while inertial capture and interception capture are relatively weak.Increasing the temperature difference between gas and liquid phases can improve the removal efficiency of submicron particles in the FGD tower.For micron-sized particles,inertial capture becomes the main mechanism,and its capture efficiency is affected by the relative velocity of gas to liquid phases and the volume fraction of droplets.Increasing the relative velocity of gas to liquid phases and the volume fraction of droplets can improve the removal efficiency of micron-sized particles in the FGD tower.关键词
气液固三相介质流场/亚微米级颗粒/微米级颗粒/深度除尘机理/欧拉-离散相模型Key words
gas-liquid-solid three-phase flow field/submicron particles/micron-sized particles/deep removal mechanism/Eule-rian-Lagrangian model分类
信息技术与安全科学引用本文复制引用
姜雅洲,邓丽萍,刘文榉,葛春亮..脱硫吸收塔深度除尘机理研究[J].能源工程,2024,44(4):56-64,9.
