Catalytic incineration of n-hexane on Pt/Al2O3 |
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Authors: | Wei-Jei Wang and Yu-Wen Chen |
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Affiliation: | (1) Department of Chemical Engineering, National Central University, 32054 Chung-Li, Taiwan, R.O.C. |
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Abstract: | The catalytic incineration of n-hexane over a Pt/Al2O3 catalyst has been studied using a fixed bed reaction. The reaction was carried out in dry air between 250 and 350 °C and at 1 atm pressure. The concentration of n-hexane was between 25 and 300 ppm. The reaction was found to be zero order in n-hexane concentration and the activation energy was found to be 21 kcal/mol. The zero order kinetics can be explained by a surface redox cycle known as Mars-van Krevelen mechanism in which the oxidation of surface Pt is the rate-controlling step.
- Pt/Al2O3 . , 250–350°C 1 . - 25–300 .. - –21 /. , — , , , Pt. |
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