改性ACF低温吸附脱除烟气中NO的研究

STUDY ON LOW-TEMPERATURE ADSORPTION OF NO IN FLUE GAS BY MODIFIED ACTIVATED CARBON FIBER

采用自制微型反应器对粘胶基活性炭纤维(R-ACF)进行脱硝的针对性实验研究,实验结果表明:经硫酸处理再经氨水溶液改性处理后,ACF表面含氧官能团特别是含氮官能团显著增加,对低温吸附氧化脱除NOx是十分有效的,通过连续测试记录NO的吸附情况,得到R-ACF脱附前后的NO吸附效率稳态时分别达到15.2%和11.5%;求出通过负吸热空气脱附法脱附后的R-ACF脱除效率达到78.7%。验证了R-ACF具有良好的循环脱附NO效率和再生性能,具有很高的工业应用价值。

A pilot study was done by micro-reactor of rayon-based R-ACF for denitration.The results showed if ACF immersed into sulfuric acid before impregnated with ammonia solution.it can efficiently increase the oxygen functional groups,and nitrogen functional groups,and is feasible for oxygenating removal NO_X at low temperature.Through successive test record the amount of NO adsorption,the adsorption efficiency of R-ACF before and after desorption of NO reached 15.2% and 11.5% respectively.In addition,through negative air desorption the R-ACF removal efficiency can reach 78.7%.It was verified that R-ACF has good desorption cycle efficiency and renewable NO performance,which has a value of industrial application as well.