半胱氨酸合铁(Ⅱ)溶液同时脱除烟中SO_2和NO_x和研究  

Study on Ferrous Cysteine Solution for Simultaneous Removal of SO_2 and NO_x

作　　者：岳松 串亚权[1,2] 江志远 

机构地区：[1]重庆钢铁高等专科学校 [2]四川联合大学

出　　处：《重庆环境科学》1998年第6期32-35,共4页Chongqing Environmental Science

摘　　要：研究用半胱氨酸合铁（Ⅱ）溶液同时脱除烟气中ＳＯ＿２和ＮＯ＿ｘ，研究了［ＳＯ＿３￣（２－）〕对ＮＯ＿ｘ脱除率的影响、半胱氨酸的再生。实验表明：烟气中ＳＯ＿２可以全部脱除；随［ＳＯ＿３￣（２－＿）］的增加能增大半胱氨酸合铁（Ⅱ）溶液对ＮＯ的吸收，但有一定限度；氧化产物胱氨酸可用Ｈ＿２Ｓ／ＳＯ＿２／ＯＨ－（Ｎａ＿２Ｓ／Ｎａ＿２ＳＯ＿３）体系还原为半阶氨酸。使此过程循环，无二次污染。The use of ferrous cysteine solution for simultaneous removal of SO_2 and NO_x from flue gas wasresearched in this paper. The effect of[SO_3￣(2-)] on NO_x removal efficiency,and regeneration of cysteine alsowere examined in the experiments. The experiments showed that SO_2 in flue gas could be completely re-moved;with the increase of [SO_2￣(2-)], the solution of ferrous cysteine could raise its absorption of NO, butwith some extent ;the oxidation product cystin could be reduced to cysteine by suing H_2S/SO_2/OH￣- (Na_2S/Na_2SO_3),Recyclying the process and there's no second pollution.

关 键 词：半胱氨酸合铁 烟气 脱硫 脱氮 废气处理 

分 类 号：X770.1[环境科学与工程—环境工程]