Etude cin\'etique de CVD de pyrocarbone obtenu par pyrolyse de propane

High temeperature (900-1000\degree C) low pressure (<< 1 atm) pyrolysis of propane yields a pyrocarbon deposit, but also mainly hydrogen and hydrocarbons from methane to polyaromatics. 30 reaction products were exeperimentally quantified at different operating conditions. A detailed kinetic pyrolysis model (600 reactions) has been developed and validated based on the totality of experiments. This model includes a homogeneous model (describing the gas phase pyrolysis of propane) coupled with a heterogeneous model describing the pyrocarbon deposit.