活性炭催化还原三乙烯四胺合钴(Ⅲ)离子的实验研究  

Catalytic reduction of [Co(trien)( H_2O)_2]^(3+) with activated carbon

作　　者：辛志玲[1] 马从华 王屹律 郭龙[1] 邵玉佩[1] 

机构地区：[1]上海电力学院环境与化学工程学院,上海200090

出　　处：《化学工程》2015年第3期14-17,共4页Chemical Engineering(China)

基　　金：上海市教委科研创新项目(11YZ196)

摘　　要：以水作为还原剂,活性炭作为催化剂,实现三乙烯四胺合钴(Ⅱ)离子的再生,使脱硝吸收液保持持续高效的脱硝效果。模拟工业应用的实际情况,在固定床反应器内研究了活性炭催化还原三乙烯四胺合钴(Ⅲ)离子的反应过程。实验结果表明:活性炭对三乙烯四胺合钴(Ⅲ)离子具有很好的催化还原效果;反应的最佳p H值为1.82—1.96;温度升高,再生反应速率加快;最佳流量为10 m L/min;再生反应速率随着溶液初始浓度的增大而增大。With water as reducing agent and activated carbon as catalyst, the regeneration of triethylenetetraminecobah （ Ⅱ ） was achieved to maintain the capability of removing NO with the triethylenetetramineeobah（ Ⅱ ） solution. The experiments were conducted in a fixed bed reactor to study the reduction reaction of triethylenetetraminecobah（ Ⅲ ） over activated carbon. The experimental results show that the activated carbon has a good catalytic reduction effect on triethylenetetraminecobah （ m ）. The best pH range is between 1.82 and 1.96. The regeneration reaction rate increases with the reaction temperature rise. The optimal superficial velocity is 10 mL/min. The regeneration reaction rate increases with the initial concentration of triethylenetetraminecobalt （ Ⅲ ）.

关 键 词：活性炭 再生 三乙烯四胺合钴 催化 还原 

分 类 号：X701[环境科学与工程—环境工程]