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Microkinetic modeling of the hydrogenation of nitrate in water on Pd–Sn/Al2O3 catalyst

2012; Elsevier BV; Volume: 445-446; Linguagem: Inglês

10.1016/j.apcata.2012.07.043

1873-3875

Adagneves O. Costa, Luciana S. Ferreira, Fábio B. Passos, Mônica Pinto Maia, Fernando Cunha Peixoto,

Catalytic Processes in Materials Science

An alumina supported palladium–tin catalyst was investigated in the nitrate catalytic hydrogenation in water and was active and selective for the reaction. A reaction mechanism was proposed using a microkinetic model without assuming the rate-determining step of the process. Kinetics measurements were performed in a semi-batch reactor varying the temperature in a range 278–318 K. A statistical fit was achieved with concentration data, obtained from the microkinetic modeling and the experimental practice, providing satisfactory statistical variance.