RT: Relative residence time
FIGURE 5 Product distributions at different relative residence
times
The feed oil of delayed coking has no olefin molecules, which were
intermediate products of thermal cracking reactions. As the reaction
proceeded, the contents of paraffin, olefin, naphthene and aromatics
with low carbon numbers increased. The model can present the molecular
distribution at different residence times and give the reaction path of
each molecule in the reaction system according to the reaction rules,
which contributes to disclose the changes in the molecular contents
between the reactants and products in the reaction system.