Table 4. Apparent Rate Constants K1, K2, and K3 for the Kinetics Models and Correlation Coefficients.
diffusion
through the liquid film |
diffusion through the product layer |
surface chemical reaction |
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---|---|---|---|---|---|---|
η |
1 – 2/3η – (1 – η)2/3 |
1 – (1 – η)1/3 |
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parameter (°C) | K1 (min–1) | R2 | K2 (min–1) | R2 | K3 (min–1) | R2 |
30 | 0.0032 | 0.9596 | 0.00013 | 0.9950 | 0.01807 | 0.9377 |
45 | 0.0090 | 0.9699 | 0.00067 | 0.9960 | 0.02306 | 0.9273 |
60 | 0.0101 | 0.9428 | 0.00280 | 0.9846 | 0.02247 | 0.9203 |
75 | 0.0108 | 0.9524 | 0.00348 | 0.9928 | 0.02279 | 0.9344 |
90 | 0.0119 | 0.9207 | 0.00635 | 0.9843 | 0.02311 | 0.8866 |