Thermogravimetric and mass spectrometric (TG-MS) analysis of sub-bituminous coal-energy crops blends in N2, air and CO2/O2 atmospheres

HCl presence is higher when the percentage of biomass increased. However, SO2 presence is more related with coal presence. It is important to stand out that any percentage of cynara in the mixture shift to lower temperatures the SO2 emission profile, from 500 °C to 300 °C. This fact is also observed in the curves of the weight loss derivative.