非稳态低浓度二氧化硫冶炼烟气制分析纯硫酸技术应用  

Application of technology of producing analytical pure sulphuric acid from smelting flue gas with unsteady low concentration sulfur dioxide

作　　者：李焕湘 文乐 朱海 瞿浪宇 梁学武 谭自强 LI Huanxiang;WEN Le;ZHU Hai;QU Langyu;LIANG Xuewu;TAN Ziqiang(Changsha Huashijie Environmental Protection Technology Development Co.,Ltd.,Changsha,Hunan,410205,China)

机构地区：[1]长沙华时捷环保科技发展股份有限公司,湖南长沙410205

出　　处：《硫酸工业》2022年第2期10-13,共4页Sulphuric Acid Industry

摘　　要：针对低浓度非稳态含硫冶炼烟气,采用有机胺可再生脱硫技术将烟气中的SO_(2)脱除,并回收得到高纯度的SO_(2)气体,尾气中ρ(SO_(2))≤100 mg/m^(3),达标排放。产出的高纯SO_(2)气体与空气配气后,配套“一转一吸”制酸系统,制备分析纯硫酸。制酸系统分析纯硫酸产出比例为100%,产品质量达到GB/T 625—2007《化学试剂硫酸》分析纯指标要求,具有良好的经济效益。Aiming at the unsteady low concentration sulfur dioxide smelting flue gas,the organic amine renewable desulfurization technology is used to remove SO_(2) from the flue gas,and the high-purity sulfur dioxide gas is recovered,ρ(SO_(2))≤100 mg/m^(3) of the tail gas,which is up to standard discharge.After the produced high-purity SO_(2) is mixed with air,it is equipped with“one conversion and one absorption”acid preparation system to prepare analytical pure sulpjuric acid.The output proportion of analytical pure sulphuric acid in the acid making system is 100%,and the quality of sulphuric acid products meets the requirements of analytical purity index in GB/T 625-2007 Chemical reagent—sulfuric acid,which has good economic benefits.

关 键 词：冶炼烟气 有机胺脱硫 分析纯硫酸 二氧化硫 资源回收 

分 类 号：TQ111.16[化学工程—无机化工]