氧化镁法脱硫工艺中多污染物控制技术发展现状  

Development Status of Multi Pollutant Control Technology in Magnesium Oxide Desulfurization Process

作　　者：梁政伟 汪黎东[1,2] 齐铁月 Liang Zhengwei;Wang Lidong;Qi Tieyue(Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control,Department of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China;MOE Key Laboratory of Resources and Environmental Systems Optimization,College of Environmental Science and Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学燃煤电站烟气多污染物协同控制河北省重点实验室,河北保定071003 [2]华北电力大学资源与环境系统优化教育部重点实验室,北京102206

出　　处：《山东化工》2022年第20期201-203,共3页Shandong Chemical Industry

基　　金：国家自然科学基金项目(52100120);河北省自然科学基金项目(E2021502023);中央高校基本科研业务费专项资金(2021MS100)。

摘　　要：目前催化氧化法制硫酸镁晶体是最为可行的技术,但该法催化剂易受脱硫浆液中多种有毒重金属离子的影响,缩短使用寿命,所以催化氧化法需排除有毒重金属干扰。从经济运行角度,提出多污染物协同控制技术,即在催化氧化阶段减少重金属的干扰。总结了处置脱硫副产物亚硫酸镁现有的技术和脱除重金属离子的新型技术,以及协同控制亚硫酸镁和重金属离子的研究,并对协同控制技术的不足提出几点建议。Currently,catalytic oxidation of magnesium sulfate crystals is the most feasible technology.However,the catalyst of this method is susceptible to the influence of many toxic heavy metal ions in the desulfurization slurry,and leads to shortened catalyst life.Therefore,the catalytic oxidation method needs to exclude the interference of toxic heavy metals.From the perspective of economic operation,propose multi-pollutant synergistic control technology that is the interference of heavy metals is reduced in the catalytic oxidation stage.This paper summarizes the existing technologies for the disposal of magnesium sulfite,a by-product of desulfurization,new technologies for the removal of heavy metal ions,and the synergistic control of magnesium sulfite and heavy metal ions.A few suggestions on the shortcomings of collaborative control technology.

关 键 词：脱硫浆液 亚硫酸盐 有毒重金属 协同控制 

分 类 号：X781[环境科学与工程—环境工程]