文献类型：期刊文献

中文题名：Gas cyclone-liquid jet absorption separator used for treatment of tail gas containing HCl in titanium dioxide industry

作者：Liwang Wang[1];Hualin Wang[1];Liang Ma[1];Zhanghuang Yang[1];Erwen Chen[1]

机构：[1]School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China

年份：2022

卷号：35

期号：4

起止页码：435

中文期刊名：Chinese Journal of Chemical Engineering

外文期刊名：中国化学工程学报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；PubMed;

基金：the sponsorship of National Natural Science Foundation of China(21878099);Science and Technology Commission of Shanghai Municipality(19DZ1208000)。

语种：英文

中文关键词：Wet dechlorination;HCl;Tail gas;Gas cyclone-liquid jet absorption;Separator;Titanium dioxide industry

摘要：In the titanium dioxide industry,there is a lack of a low-cost and high-efficiency treatment method for chloride containing tail gas.In this paper,the removal of HCl from the titanium dioxide industry by gas cyclone-liquid jet separator was studied,while Ca(OH)_(2),Na_(2)CO_(3),NaOH solution,and water were used as absorbents.This paper investigated the influence of gas cyclone-liquid jet separator’s various process parameters on the removal rate of hydrogen chloride gas.The mechanism of mass transfer in the process of removing hydrogen chloride was discussed,and the effect and feasibility of HCl gas removal in the gas cyclone-liquid jet absorption separator were studied.The results showd that the removal efficiency of hydrogen chloride maintained above 95%,up to 99.9%,and the total mass transfer coefficient reached0.28 mol·m^(-3)·s^(-1)·k Pa^(-1).Under the same conditions,the absorption effect and total mass transfer coefficient of weak basic absorption liquid can be greatly improved by increasing the flow rate of absorption liquid,but the absorption effect and total mass transfer coefficient of strong alkaline absorption liquid can’t be improved obviously.The larger the inlet gas volume,the higher the gas concentration,the lower the absorption efficiency and the lower the total volumetric mass transfer coefficient.