TABLE 4.

Temperature-dependent pyrolysis reactions (Bilitewski et al., 1997).

Chemical reaction	Temperature range
Dehydration, thermal drying	100–120
Desulfurization, deoxidation, CO2 and H2O molecular splitting, H2S splitting	250
Aliphatic hydrocarbon bonds breakage, methane and other aliphatic hydrocarbons splitting	340
Carbonization	380
C-O and C-N bonds breakage	400
Bituminous (asphalt) compounds disintegration into low temperature tars and oils	400–600
Bituminous (asphalt) compounds cracking into thermal resistant elements, aromatic organic compounds formation	600
Thermal aromatization of ethene to hexanaphthene to C6H6 formation and other volatile aromatic hydrocarbons	>600