作者: Pilaiwan Chaiwang , Benjapon Chalermsinsuwan , Pornpote Piumsomboon
DOI: 10.1080/00986445.2015.1078796
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摘要: In this study, nonisothermal kinetic methods for the decomposition of potassium hydrogen carbonate (KHCO3) and sodium (NaHCO3) were investigated by thermogravimetry (TG) derivative (DTG). Four different heating rates measured to calculate order reaction (n), preexponential factor (A), activation energy (Ea) using four models: Kissinger–Akahira–Sunose (KAS), Flynn–Wall–Ozawa (FWO), Kim–Park, analytical methods. The results showed that method provided highly accurate compared with experimental data, whereas KAS, FWO, Kim–Park gave less due approximation employed equations. KHCO3 NaHCO3 was approximately 2. slightly higher than NaHCO3. obtained parameters from those then used chemical conversion further applications.