高建宏　林晓利　简小朋　刘孙宏　李新生　严新龙

摘要[目的]降低混合型造纸法再造烟叶中TSNAs的释放量。[方法]研究分析不同吸附材料对烟草萃取液及再造烟叶卷烟烟气中TSNAs的吸附效果。[结果]在烟草萃取液中，活性炭对TSNAs的吸附作用优于分子筛，活性炭S35对TSNAs的去除率为84.84%，MCM41对TSNAs的去除率为48.92%，ZSM5对TNSAs的去除率最差，仅为6.67%，但其对TSNAs中的NNK具有选择性吸附作用，去除率高达91.60%。通过进一步对再造烟叶卷烟烟气进行试验验证上述结果，活性炭S35对卷烟烟气中TSNAs的去除率为70.20%，MCM41对TSNAs的去除率为46.74%，ZSM5对TSNAs的去除率仅为5.57%，ZSM5对烟气TSNAs中的NNK没有明显的选择吸附作用，去除率为15.64%。[结论]在烟草萃取液中添加吸附材料的方式来降低混合型再造烟叶中TSNAs含量，是一种简易、高效的去除卷烟中TSNAs的方法。

关键词 烟草特有N亚硝胺；造纸法再造烟叶；吸附材料；卷烟烟气

中图分类号 S572 文献标识码 A 文章编号 0517-6611（2016）05-103-04

Abstract[Objective]The aim was to reduce TSNAs emissions in mixed papermaking process reconstituted tobacco.

[Method]Different adsorbent materials were applied to tobacco extract solution and reconstituted tobacco for removing TSNAs.[Result]The results showed that the adsorption performance of modified activated carbon was more excellent than molecular sieves in tobacco extract solution. Especially modified activated carbon S35 showed the best adsorption performance. The removal rate of TSNAs in tobacco extract solution was 84.84%. The adsorption performance of MCM41 was greater than ZSM5， and the removal rate were 48.92% and 6.67% in tobacco extract solution. Meanwhile， ZSM5 had excellent selective absorption on NNK in tobacco extract solution， and the removal rate was up to 91.60%. The amount of TSNAs in tobacco smoke was detected in the same time. Modified activated carbon S35 had the best adsorption performance， the removing rate of TSNAs in tobacco smoke was 70.20%. MCM41 showed more efficient adsorption performance than ZSM5. The removing rate were 46.74% and 5.57%， respectively. However， the removal rate of NNK in tobacco smoke was only 15.64% by ZSM5.[Conclusion]Its a simple， efficient method to reduce the TSNAs in papermaking process reconstituted tobacco by adding adsorbents in tobacco extract solution.

Key words Tobacco specific nitrosamines（TSNAs）； Papermaking process reconstituted tobacco； Adsorbent materials； Tobacco smoke

烟草中含有2 000多种化学物质，当烟支燃烧时所产生的烟气中的粒相和气相中存在5 200多种化合物。在这些物质中，烟草特有的N亚硝胺（TSNAs），主要包括N′亚硝基降烟碱（NNN）、N′亚硝基新烟碱（NAT）、N′亚硝基假木贼碱（NAB）和4（N甲基亚硝胺基）1（3吡啶基）1丁酮（NNK）被认为是主要的致癌物质。动物试验已经证实，即使是痕量的亚硝胺，也会导致多种癌症或肿瘤，对人类有潜在的致癌作用[1-2]。因此，研究降低烟草中的亚硝胺含量的方法具有重要的意义。

目前为止，对卷烟中TSNAs的降低方法主要从2个方面考虑。第一，直接降低烟支中的TSNAs。Zhou等通过卷烟滤嘴拦截方法去除了主流烟气中约30%的TSNAs[3]；……