The prediction of the effects of tobacco type on smoke composition from the pyrolysis modeling of tobacco shreds

The influence of tobacco type on the selected volatile products of smoke from pyrolyzing tobacco has been investigated by means of a concentrated-parameter model for the conservation of volatile species masses and enthalpies. Pyrolysis products are formed via a reaction scheme based on a large number of parallel first-order reactions with a distributed activation energy expressed by a Gaussian distribution function. The dynamics of volatile species evolution was presented, and the ratio of the smoldering (sidestream) to puffing (mainstream) for the yields of some selected volatile species was simulated which reasonably compares with the existing experimental data. (C) 2005 Elsevier B.V. All rights reserved.