The dehydrogenation of methylcyclohexane (M) to produce toluene (T) was carried out over a 0.3% Pt/A12O3 catalyst in a differential catalytic reactor. The reaction is carried out in the presence of hydrogen (H2) to avoid coking [J. Phys. Chem., 64, 1559 (1960)].
(a) Determine the model parameters for each of the following rate laws.
Use the data in Table P10-15 B.
(b) Which rate law best describes the data? (Hint: Neither or KM can take on negative values.)
(c) Where would you place additional data points?
TABLE P10-15. Dehydrogenation of Methylcyclohexane
(atm) | PM (atm) | Reaction Rate |
1 | 1 | 1.2 |
1.5 | 1 | 1.25 |
0.5 | 1 | 1.30 |
0.5 | 0.5 | 1.1 |
1 | 0.25 | 0.92 |
0.5 | 0.1 | 0.64 |
3 | 3 | 1.27 |
1 | 4 | 1.28 |
3 | 2 | 1.25 |
4 | 1 | 1.30 |
0.5 | 0.25 | 0.94 |
2 | 0.05 | 0.41 |
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