巴豆醛在卷烟滤嘴中的过滤和截留行为特征

来源 :中国烟草学会2014年学术年会 | 被引量 : 0次 | 上传用户:jack332904910
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为研究巴豆醛在卷烟滤嘴中的过滤及截留行为特点,考察了ISO及HCI抽吸模式下普通醋纤滤嘴,ISO抽吸模式下外置沟槽醋纤滤嘴、内置沟槽醋纤滤嘴、纸/醋复合滤嘴、通风空腔醋纤滤嘴对巴豆醛的过滤效率,研究了抽吸模式和滤嘴结构对巴豆醛在滤嘴中的截留浓度空间分布模式的影响.通过实时在线监测抽吸时流经滤嘴烟气温度变化以及巴豆醛在普通滤嘴中的逐口截留浓度轴向分布模式研究,解释了巴豆醛在滤嘴中的过滤和截留行为特点. 结果表明:①ISO抽吸模式下不同结构滤嘴对巴豆醛的过滤效率顺序为:普通醋纤滤嘴>外置沟槽醋纤滤嘴≈内置沟槽醋纤滤嘴>纸/醋复合滤嘴>通风空腔醋纤滤嘴;HCI抽吸模式下巴豆醛在普通醋纤滤嘴中的过滤效率大幅降低;②巴豆醛在醋纤滤嘴中的截留分布模式与烟碱、苯酚等其它烟气成分存在着显著差异,滤嘴结构变化对巴豆醛截留浓度分布模式有明显影响;③逐口截留纵向浓度分布模式与流经滤嘴烟气温度实时在线监测结果表明,卷烟抽吸时巴豆醛在滤嘴中存在吸附-脱附-吸附过程,这也是其截留浓度分布模式明显不同于烟碱等其它烟气成分的原因.
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