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针对湿法同时脱硫脱硝工艺 ,提出通过构造一个液相反应过程 ,将 NOx 和 SO2 溶解在溶液中生成的 NO2 -2 和 SO2 -3 经过一系列连续的液相离子反应生成有利用价值的 NH+4 ,实现资源的合理利用。在 35°C～ 74°C,离子强度为 0 .5 5 mol/L时对羟胺二磺酸钾磺化反应动力学进行了研究 ,得出反应的动力学方程为 :- dcHIDSdt =kc HON( SO3) 2 -2 · c HSO-3,其中 k=5 .5 0 9× 1 0 8· e-6.154× 10 4 / RT;在5 0°C、离子强度为 0 .31 mol/L～ 0 .65 mol/L时 ,研究了该反应的盐效应 ,结果表明该反应呈负盐效应 ,离子强度为零时 ,有最大的速率常数 k0 =0 .0 2 4 7L /( mol· min)
Aiming at the simultaneous desulfurization and denitrification process of wet process, it is proposed that NO2-2 and SO2-3 produced by dissolving NOx and SO2 in the solution through a series of continuous liquid-phase ion reactions by constructing a liquid-phase reaction process to generate valuable NH + 4, to achieve the rational use of resources. The kinetics of sulfonation of potassium hydroxylamine disulfonate was studied at 35 ° C ~ 74 ° C and ionic strength of 0.55 mol / L. The kinetic equation of the reaction was obtained as follows: - dcHIDSdt = kc HON ( SO 3) 2 -2 · c HSO-3, where k = 5.50 9 × 10 8 · e-6.154 × 10 4 / RT; at 50 ° C, the ionic strength is 0.31 mol / L ~ 0 . The salt effect of this reaction was studied at 65 mol / L. The results showed that the reaction was negative salt effect. The maximum rate constant k0 = 0. 0247L / (mol · min) was obtained when the ionic strength was zero.