Simulated distillation by thermogravimetric measurements applied to thermal cracking and thermal hydrocracking

A suitable correlation can be made to represent the simulated distillation of heavy oils starting from thermogravimetric measurements. This method is applicable to hydrocarbons having an initial boiling point equal or greater than 200°C. The simulated thermogravimetric distillation fit was obtained from experiments with the standard compounds obtained from ASTM D-2887-83 (Boiling range distributions of petroleum fractions by gas chromatography). The equation applied to find the average boiling temperature is following: T = (1/al) (Ttg-a2). T is the boiling temperature, a1 and a2 are the correction factors, Ttg is the thermogravimetric temperatures.