氨法-Fe(Ⅱ)EDTA法同步脱硫脱硝的研究  

Investigation of Simultaneous Desulphurization and Denitration by NH_3-Fe(Ⅱ)EDTA

作　　者：李宇奇[1] 何祥[1] 韩军[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,武汉430081

出　　处：《工业安全与环保》2014年第9期1-3,46,共4页Industrial Safety and Environmental Protection

基　　金：国家高技术研究发展计划项目(2012AA062501)

摘　　要：在氨法脱硫的基础上提出了氨法-Fe(Ⅱ)EDTA法同步脱硫脱硝的新工艺,重点研究了Fe(Ⅱ)EDTA浓度、反应温度、进气流量、初始pH值等参数对脱硫脱硝效率的影响。研究结果表明,氨法-Fe(Ⅱ)EDTA法同步脱硫脱硝工艺可行,在温度40℃,初始pH值为8,进气量50 L/h,Fe(Ⅱ)EDTA浓度为0.075 mol/L的条件下可以保持99%以上的脱硫率和70%以上的脱硝率。A new process of simultaneously removing SO2 and NO by NH3- Fe（ Ⅱ） EDTA solution is proposed on the basis of the ammonia- based process. The effects of Fe（ Ⅱ） EDTA concentration,reaction temperature,gas flow,pH on desulphurization and denitration efficiency are investigated. The results prove that the process of simultaneously removing SO2 and NO by NH3- Fe（ Ⅱ） EDTA solution is feasible. The maximum desulphurization and denitration efficiency occurs at 40 ℃,pH = 8,50 L /h gas flow rate,0. 075 mol /L Fe（ II） EDTA concentration,about99% of SO2 removal efficiency and 70% of NO removal efficiency.

关 键 词：氨法 Fe(Ⅱ)EDTA 络合剂 脱硫脱硝 

分 类 号：X701[环境科学与工程—环境工程]