Feasibility Assessment of Obtaining Kinetic Parameters for Independent Simultaneous First-Order Reactions Using Friedman Isoconversion Analysis

This research investigates the effect of two independent first-order reactions occurring concurrently within a given temperature range. A theoretical simulation-based approach was employed to analyze the influence of these concurrent reactions on the kinetic parameters obtained using the Friedman isoconversion method. A novel technique for separating the kinetic parameters of two reactions is also discussed here. The results demonstrate that, in most cases, the disparity between the actual activation energies of the two reactions and the values obtained through the Friedman isoconversion method is minimal, with an error of less than $ 1\%$. However, when the two first-order reactions exhibit DTG peaks within the same temperature range, the error can escalate to as high as $ 15\%$. This investigation provides valuable insights into the errors associated with kinetic parameter estimations on multiple simultaneous reactions. The findings contribute to a more indepth understanding of reaction kinetics and offer important substances for experimental design and reaction optimization in various fields.