制丝关键工艺参数对杂环化合物的影响

Effects of Key Process Parameters in the Primary Processing of Cigarette Production on Heterocyclic Compound

采用气相色谱-质谱联用仪检测了不同制丝关键工艺参数加工后的烟丝中的杂环化合物2-乙酰基吡咯和2-乙酰基呋喃的含量,结果显示:真空蒸湿温度、一周期抽空温度、超回蒸汽喷射比例、烘丝热风风量对2-乙酰基吡咯和2-乙酰基呋喃含量的加和值有显著影响,在试验范围内,随真空回潮蒸湿温度的增加,制叶丝纯丝中2-乙酰基呋喃和2-乙酰基吡咯含量的加和值先下降,当真空回潮蒸湿温度大于56℃后出现增加趋势;随真空回潮一周期抽空温度的增加,制叶丝纯丝2-乙酰基呋喃和2-乙酰基吡咯含量的加和值先升高,当一周期抽空温度大于10℃后出现下降趋势;随着超回蒸汽喷射比例的增加,制叶丝纯丝中2-乙酰基呋喃和2-乙酰基吡咯含量的加和值先升高,当超回蒸汽喷射比例大于6.5kg/100kg后有下降趋势;制叶丝纯丝中2-乙酰基呋喃和2-乙酰基吡咯含量的加和值则随着烘丝热风风量的增加而升高,当烘丝热风风量大于2400m3/h后出现下降趋势。

The content of heterocyclic compounds 2-acetylpyrrole and 2-acetylfuran in silk processed by different key processing parameters about primary processing of cigarette production was determined by GC-MS. The results showed that vacuum steaming temperature, one-cycle evacuation temperature, steam injection ratio in humidification and hot air volume in dryer are the key process parameters which influence the content of heterocyclic compound in pure silk. Within the scope of the test, the content of heterocyclic compounds in pure silk was decreased first then increased at 56℃ with the increase of vacuum evaporation temperature. The content of heterocyclic compounds in pure silk was increase first then decreased at 10℃ with the increase of one-cycle evacuation temperature. The content of heterocyclic compounds in pure silk was increase first then decreased at 6.5 kg/100 kg with the increase of steam injection ratio in humidification. The content of heterocyclic compounds in pure silk was increase first then decreased at 2400 m3/h with the increase of hot air volume in dryer.