Thermogravimetric analysis and kinetic study of heavy oil pyrolysis

摘要

Pyrolysis, so-called devolatilization, is one of the first steps of all thermochemical processes occurring in an inert atmosphere. The authors discuss the main kinetic features of heavy oil pyrolysis, on the basis of the data derived m from a TGA analysis and by using a kinetic model. The samples were heated over a range of temperature from 400K to 430 degrees C at various heating rates between 10 and 80 degrees C/min. Experimental results showed that the effect of time is considerable in the case of tar conversion, compared to char and gases.