NO液相催化氧化过程研究  

Research on Nitric Oxide Liquid Phase Catalytic Oxidation Process

作　　者：辛志玲[1] 陈晓宇[2] 肖文德[3] 

机构地区：[1]上海电力学院能源与环境工程学院,上海200090 [2]上海电力股份有限公司杨树浦发电厂,上海200090 [3]华东理工大学联合化学反应工程研究所,上海200237

出　　处：《华东电力》2010年第3期408-412,共5页East China Electric Power

基　　金：上海市自然科学基金项目(08ZR1408800);上海市重点学科建设项目(P1304);上海市科委能力建设项目(08160512600)

摘　　要：采用乙二胺合钴溶液作吸收液,在填料塔内,对模拟烟气进行了湿法脱硝的实验研究。主要对乙二胺合钴溶液脱除NO的反应机理进行了研究,考察了O2和pH值等因素对NO脱除率的影响。研究结果表明:在乙二胺合钴溶液中,具有脱除NO活性的组分是[Co(en)3]2+而不是[Co(en)3]3+;烟气中氧的存在有利于NO的脱除;pH值是影响NO脱除的主要因素,气相中存在氧时,溶液的最佳pH值为12.86;在乙二胺合钴溶液脱除NO的体系中,[Co(en)3]2+与NO络合速率大于O2与[Co(en)3]2+络合速率。Experiment research was presented on wet denitrification of gas in packed column,which used the triethylenediamine cobalt solution as absorption liquid.Reaction mechanism of triethylenediamine cobalt solution removal NO was mainly researched,and the influence of O2 and pH value on the removal ratio of NO was studied.The experiment results indicated that the component [Co（en）3]2＋ rather than[Co（en）3]3＋ was active for removal NO in the triethylenediamine cobalt solution.Oxygen in the gas was beneficial to removal NO;pH value was the main influence on removing NO.The Optimum pH value of solution was 12.86 in the presence of oxygen.The coordination reaction rate for NO and [Co（en）3]2＋ was higher than that of Oxygen and [Co（en）3]2＋ in the triethylenediamine cobalt solution removal NO system.

关 键 词：乙二胺合钴 催化氧化 脱除 NO 

分 类 号：TM621.8[电气工程—电力系统及自动化]