NONISOTHERMAL DECOMPOSITION KINETICS OF TRONA

In the present work, experiments on the nonisothermal decomposition of trona in thermogravimetric analysis (TGA) and differential scanning c alorimetry (DSC) devices were carried out, and kinetic analysis of the process was performed by employing four different approaches. It was determined that the process fits a first-order reaction kinetic model and that the value of the activation energy changes, to some degree, d epending upon the method used in the analysis, with a maximum deviatio n of 8.9% from the average value. The activation energy was found to b e approximately 112 kJ mol(-1), which is in good agreement with the da ta from similar studies in the literature.