Deviation of activation energy caused by neglecting a temperature term in Ozawa Equation

In the non-isothermal kinetic equation, the temperature integral from 0 to T₀ never equals to zero, so a deviation of activation energy is introduced when the term is neglected. We propose a new evaluation method on Ozawa Equation. The results show that neglecting this term in Ozawa Equation leads to large activation energy errors, when small absolute values of Δx = x - x₀(x = E/RT). The deviation of the activation energy is less than 0.55% when {pipe}Δx{pipe} > 5, but may exceed 10% if {pipe}Δx{pipe} < 2. The application of this method on the dehydration of CaC₂O₄· H₂O shows that the theoretical error was close to the actual error.