液相催化氧化脱除烟道气中SO2 和NOx 的研究.pdfVIP

中国环境科学 2001,21(1) 3337 China Environmental Science 液相催化氧化脱除烟道气中SO 和NO 的研究 2 x 马双忱,赵 毅,郑福玲,王淑勤 华北电力大学环境工程系,河北 保定 071003 摘要 针对我国国情提出了液相催化氧化脱硫脱氮的新方法,在鼓泡反应器内进行了液相催化氧化脱硫脱氮的实验.就催化剂的选择 吸收 液的pH 值 催化剂浓度等对SO 和NO 吸收效率的影响及其变化规律进行了研究.结果表明,氨中和Fe3+液相催化氧化法脱硫脱硝有较好 2 x 的效果,采用本方法可以脱除90% 以上的SO 以及50%左右的NO . 2 x 关键词 液相催化氧化 烟气脱硫 脱氮 联合脱硫脱氮技术 中图分类号 X131.1 文献标识码 A 文章编号2001 Study on reducing SO /NO in flue gas by aqueous catalytic oxidation. MA Shuang-chen, ZHAO Yi, ZHENG Fu-ling, 2 x WANG Shu-qin (Department of Environmental Engineering, North China Electric Power University, Baoding 071003,China). China Environmental Science. 2001,21(1) 3337 Abstract The new method of removing SO /NO in flue gas by aqueous catalytic oxidation is proposed in the view of 2 x Chinese current condition in this paper. The experiment of the proposed method is carried out in a bubbling-reactor. The influence and the varying law of the selection of catalysts, pH of absorbing solution, concentration of catalysts on the efficiency of absorbing SO and NO are studied. Research shows that reducing SO /NO by aqueous catalyzed oxidation 2 x 2 x has a good effect while NH3 solution exists Fe3+ ion. The efficiency of absorbing SO 2 and NOx can be achieved above 90% and about 50% respectively by this method. Key words