Research Article
Non-Isothermal Degradation Kinetics of CaCO3 from Different Origin
Table 4
Dependence of activation energy E (kJ mol−1) on the degree of conversion α using Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose calculation procedures.
| Degree of conversion,α | Reagent-grade CaCO3 | Insitu produced CaCO3 | OFW | KAS | OFW | KAS |
| 0.1 | 145.8 | 145.8 | 121.6 | 121.4 | 0.2 | 155.8 | 148.2 | 126.3 | 124.9 | 0.3 | 161.7 | 153.8 | 131.0 | 127.7 | 0.4 | 166.3 | 158.2 | 135.1 | 131.1 | 0.5 | 169.3 | 161.0 | 138.9 | 133.5 | 0.6 | 172.2 | 163.8 | 141.8 | 135.9 | 0.7 | 175.5 | 166.9 | 145.2 | 138.8 | 0.8 | 176.9 | 166.7 | 149.6 | 142.7 | 0.9 | 178.2 | 169.5 | 151.3 | 145.5 |
| Average | 166.9 11 | 159.3 10 | 137.8 13 | 133.5 12 |
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