Abstract
A silico alumino phosphate with AFI structure (SAPO-5) was prepared in a two-phase medium and characterized by XRD, followed by the addition of TEA+. The kinetics of the TEA+/SAPO-5 thermal decomposition reaction was studied by isothermal and dynamic thermogravimetry. Two kinetic models, D3 and D4 based on diffusion processes were found as best to fit the isothermal data. On the other hand, the best fit for the dynamic data is the F1 first order reaction model. According to the apparent activation energy values, the use of the dynamic method indicates a higher temperature dependence than the isothermal method.
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Brito, D.F., Silva, E.F.B., Rodrigues, D.P. et al. Kinetic study of the thermal decomposition of TEA+/SAPO-5. J Therm Anal Calorim 87, 853–857 (2007). https://doi.org/10.1007/s10973-006-8189-7
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DOI: https://doi.org/10.1007/s10973-006-8189-7