过渡金属离子液相催化氧化烟气脱硫  

Flue gas desulfurization through liquid-phase catalytic oxidation by transition metal ions

作　　者：张玉[1] 周集体[1] 

机构地区：[1]大连理工大学环境科学与工程学院,大连116012

出　　处：《现代化工》2002年第1期15-18,20,共5页Modern Chemical Industry

摘　　要：烟气脱硫技术属我国环保市场急需的关键技术。过渡金属离子液相催化氧化烟气脱硫技术可以利用产生的稀硫酸制取石膏、肥料和聚合硫酸铁等多种高附加值的副产品。阐述了烟气脱硫的反应机理、脱硫吸收液和脱硫装置 ,以及吸收液酸度、温度、液气比、气速和入口浓度等因素对脱硫效率的影响。评述了金属离子的协同作用。Flue gas desulfurization is a key technology urgently needed in the environmental protection market in China.Flue gas desulfurization through liquid phase catalytic oxidation by transition metal ions can use dilute H 2SO 4 to produce many byproducts with high added value such as gypsum,fertilizer and polymeric ferric sulfate.The reaction mechanism,absorbent and facility of flue gas desulfurization were introduced.Effects of absorbent pH value,temperature,liquid/gas ratio,gas flow rate and inlet concentration on desulfurization efficiency were described.Metal ion synergistic effects,technical paths and byproducts were also analyzed.

关 键 词：过渡金属离子 液相催化氧化 烟气脱硫 协同作用 工艺路线 副产物 

分 类 号：X701.3[环境科学与工程—环境工程]