以3种不同结构的酰胺类高分子有机胺[非离子型聚丙烯酰胺(NPAM)、聚琥珀酰亚胺(PSI)和聚天冬氨酸钾(PASP-K)]为脱硝剂,通过热失重和程序升温质谱研究其热分解过程,并考察其高温脱硝性能。结果表明,三者热稳定大小依次为PSI>PASP-K>NPAM。3种高分子有机胺脱硝性能由大到小顺序为PASP-K>NPAM>PSI,这与3种有机胺分解产生氨的速率和量有关;PASP-K有较好的热稳定性和较多的分解氨量,脱硝效果最好。因此适宜的高分子脱硝剂应有较高的分解氨量和适宜的分解速率。

Three kinds of amide polymer organic amines with different structure,including nonionic polyacrylamide (NPAM),polysuccinimide (PSI) and polypotassium aspartate (PASP-K),are used as denitrification agent,and their thermal decomposition process is studied through thermogravimetric and temperature programmed mass spectrometry,and their denitrification performances at high-temperature are investigated.It is indicated by the results that the thermal stabilization of the three kinds of amines is PSI>PASP-K>NPAM,and their denitrification performance is in the order of PASP-K>NPAM>PSI,which is related to the rate and amount of ammonia generated by the decomposition of the amines.Among them,PASP-K has the best denitrification effect because it has better thermal stabilization and can generate more decomposed ammonia amount.Therefore,the suitable polymer denitrification agent should have higher ammonia decomposition amount and suitable decomposition rate.

许战峰(2000-),男,硕士生,研究方向为工业烟气污染物脱除,2292223416@qq.com