Thermogravimetric analysis of biowastes during combustion

Differences between combustion and oxy-combustion of corn and corn–rape blend using thermogravimetric analysis

“…This behaviour was previously described by the other authors in the literature [48,58] in terms of lignin content. The obtained activation energies are in accordance with the results previously reported for several bioresidues [5,17,24,[30][31][32][33]41,48,50,54,59,60], considering that the oxy-combustion processes generally disfavour chemical reactions. The pre-exponential factors and orders of reaction are in accordance with the previous results [5,[30][31][32][33]54,59,60].…”

“…However, the sample requires some amount of time to reach the experimental temperature in this type of experiment [14,24], which is a drawback that non-isothermal methods do not account for. Model-fitting mathematical approaches were the original and most popular, especially for isothermal experiments, but they have lost popularity to isoconversional methods, which can compute kinetic parameters without modelling assumptions [30][31][32][33]. Model-free isoconversional methods allow E to be estimated as a function of α without pre-fixing the reaction model.…”

Kinetic Analysis of Poultry Processing Dewatered Sludge (PPDS) Using Thermogravimetric Analysis (TGA)

“…Sudden drop of weight happened in the third region at temperature between 450°C to 500°C corresponding to combustion of char. Once the fuel content of the PPDS deplete, the mass correspoding to the ashes become constant [8]. As observed, heating rates have significant effect on the thermal behavior of PPDS.…”

“…In this work, two most common iso-conversional method, the Flynn-Wall-Ozawa (FWO) and Kissinger-Akihara-Sunose (KAS) method was applied to determine the kinetic parameters. Doyle's approximation of p(χ) was adopted, which involves measuring the temperature corresponding to the fixed values of α from experiment at different heating rates [8].…”

Effect of alkali and alkaline earth metal species on the combustion characteristics of cattle manures

“…40 Thermogravimetric analysis (TGA) has been widely used in the study of thermochemical conversion processes. [41][42][43][44] Combustion reactivity experiments were conducted in the simultaneous DSC-TGA Q600. First, 10 AE 0.2 mg of sample was placed in an alumina crucible.…”