2.3. Product analysis
The volatile products that leave the reactor have been analyzed
online with a chromatograph (Varian 3900) equipped with a flame
ionization detector (FID). The reactor outlet line connected to the
chromatograph is maintained at 280 _C to avoid the condensation
of heavy oxygenated compounds. Additionally, the reactor output
is diluted with an inert gas to ensure all the volatile products
formed during the pyrolysis enter the gas chromatograph and are
analyzed online. To validate the mass balance, an internal standard
(cyclohexane) has been introduced through an inlet located in the
heated line running from the reactor to the chromatograph.