Thermogravimetric analysis was used to study and compare the oxy-combustion of different blends of corn bioresidues with sunflower, rape and algae bioresidues. Non-isothermal thermogravimetric data were used to obtain the oxy-combustion kinetics of these bioresidues. This paper reports on the application of the Vyazovkin and Ozawa-Flynn-Wall isoconversional methods to evaluate the kinetic parameters (energy activation, pre-exponential factor and reaction order) in the oxy-combustion of the bioresidues studied. The activation energy obtained from corn oxy-combustion (E similar to 168.9 kJ mol(-1)) was lower than that from the blends (corn-sunflower, E similar to 189.0 kJ mol(-1) and corn-microalgae, E similar to 201.9 kJ mol(-1)) whereas the activation energy obtained from the corn-rape blend was the lowest (E similar to 155.9 kJ mol(-1)). Both the Vyazovkin and Ozawa-Flynn-Wall methods yielded similar results. (C) 2014 Elsevier Ltd. All rights reserved.