活性炭复合滤嘴吸附性能的热脱附研究

Thermodesorption study on adsorbability of active carbon composite filter

采用热脱附与气相色谱-质谱联用技术对活性炭滤嘴中活性炭和乙酸纤维脱附的组分进行了定性分析,并用峰面积归一化法测定了所含挥发性成分的质量分数,活性炭脱附组分共鉴定出芳香族化合物、醛酮类、烟碱、酸类、酯类等62种挥发性化合物。结果表明方法具有较好的重现性;为评价活性炭滤嘴的吸附性能提供了一种参考方法。

The volatile compounds desorbed from active carbon and acetate fiber in composite filter were analysed. By ATD-GC/MS analysis, 62 compounds were identified. The main components of the volatile compounds were aldehydes, ketones, aromatic compounds, esters and acids. The relative amounts of the volatile compounds were determined by area normalization method. The results indicated that the method has a good repeatability. A method for evaluating the adsorbability of the active carbon composite filter is established.