Kinetics of coke formation during cracking of group components of petroleum residue

1.In a series of group components of natural or destructive origin (oils, tars, asphaltenes) we observe an increase in their conversion rates at 410°C, and a reduction in their apparent activation energies, entropies and heats of activation, and preexponential factors.2.The conversion rates and apparent activation energies for the group components extracted from cracking residue are higher than those for components of natural origin.3.In a genealogical series (oils — tars — asphaltenes) we observe a reduction in the conversion rates of each succeeding intermediate product.