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添加剂对氨／尿素湿法脱硝有着极为重要的作用，不同的添加剂对氨／尿素湿法脱硝的影响机制和作用也不尽相同。该文在鼓泡反应装置上，以尿素为吸收液，添加几种具有代表性的无机和有机类添加剂进行了NOx脱除效果的实验研究。研究结果表明：各种添加剂的脱硝性能：高锰酸钾〉三乙醇胺〉过硫酸铵〉乙二胺〉己二酸〉甘氨酸〉溴化钾〉溴化铵〉活性炭〉硫酸铁：此外，三乙醇胺／二乙醇胺组合添加剂的脱硝效果较好，最佳配比为1：1；该混合醇胺添加剂减缓了吸收液pH值的下降，在脱硝过程中较单一醇胺添加剂具有更好的催化缓冲作用；当混合添加剂配比浓度均为0．06％时，本试验条件下的脱硝效率达81．8％。“,”It is found that the additives have an important role on the removal of NOx by wet scrubbing using aqueous urea/ammonia solution, and the various additives have different effects. This experimental research on the NOx emission in aqueous solution of urea/additive was performed in a bubbling reactor. Several typical inorganic and organic additives were discussed. The results show that the denitrification efficiency of various additives is as follows： potassium permanganate〉 triethanolamine （TEA）〉ammonium peroxydisulfate〉 diethanolamine （DEA）〉adipinic acid〉glycine〉potassium bromide〉 ammonium bromide〉acticarbon〉ferric sulfate, the mixture of triethanolamine and diethanolamine has better effect on denitrification, and the optimum mixing ratio is 1：1. This mixing alkanolamines additive is not only helpful to slowing down the declined value of pH of the aqueous urea solution, but also has better catalysis and buffer effects on denitrification than that of a single alkanolamines solution. It is obtained that the removal efficiency of NO reaches 81.8% when each additive concentration is 0.06% in this experiment.