采用杂多酸化合物溶液同时脱硫脱氮的实验研究

本文对液相催化氧化脱硫脱氮的新方法进行了研究 ,在鼓泡反应发生器内进行了液相催化氧化脱硫脱氮的实验。采用钼硅酸溶液及其还原产物脱除烟气中的SO2 和NOX,分别就吸收液的浓度、pH值、温度、停留时间等因素对SO2 和NOX 去除效率的影响及其变化规律进行了研究。实验结果表明 ,钼硅酸能十分有效地吸收SO2 ,将SO2 氧化成H2 SO4,并使杂多酸还原为杂多蓝。随后又被用于去除NOX,把NOX 还原成N2 ,蓝色溶液再次被氧化成为黄色溶液

The experimental study of combined removal of S02 and NOx by aqueous solution of heteropoly acids

The new method of reducing SO 2 and NO X in flue gas by aqueous catalyzed oxidation is studied in this paper. The experiments of aqueous catalyzed oxidation desulfurization and denitrification were carried out in a bubbling reactor. Selective removal of SO 2 and NO X from gas streams was investigated using aqueous solutions of 12 H 4SiMo 12 O 40 and its reduced molybdenum blue species. The influence and the varying law of the concentration, pH, temperature and contacting time of absorbing solution on the absorbing efficiency of SO 2 and NO X were studied. The experimental results show that SO 2 in the flue gas can be removed quantitatively by yellow solution of 12 H 4SiMo 12 O 40 , and SO 2 is oxidized into H 2SO 4, while the yellow solution is reduced into blue species. The reduced molybdenum blue solution is then used for the removal of NO X, while NO X is reduced into N 2, and the blue solution is then oxidized back into yellow species.