Abstract:
Different solid materials were applied to adsorb gas productions produced from tobacco pyrolysis at high temperature, and the gas species released from solid materials were detected when solid materials were heated at 150℃. As a result, the solid materials were provided for adsorption and release of pyrolyzed gas production from tobacco, to develop of smokeless tobacco products. The results show that the ability of Al
2O
3, ZSM-5 and MCM-41 molecular sieve for adsorption of pyrolyzed gas productions of tobacco depends on their specific surface area and surface properties. The relative amount of aroma components released from Al
2O
3 after the adsorption of pyrolyzed gas production of tobacco is higher than that released from ZSM-5 and MCM-41 molecular sieve. In contrast, the relative amount of harmful components released from Al
2O
3 is lower, in contrast to molecular sieves of ZSM-5 and MCM-41. These results reveal that Al
2O
3 possesses the best performance for adsorption and release of pyrolyzed gas productions from tobacco. In addition, the atmosphere during pyrolysis of tobacco influences the performance of solid material for adsorption and release of pyrolyzed gas production. Compared with the atmospheric air containing oxygen, the relative amount of aroma components released from Al
2O
3 after the adsorption of gas production pyrolysized under N
2 is higher. On this basis, the relative content of aroma components released from Al
2O
3 during the heating process can be significantly improved by adsorbing pyrolysis gas products on layered solid materials, accompanying with the decrease in the relative amount of harmful components.