?EMPLEO DE UN CATALIZADOR ?SEMI-MODELO? DE NANOPARTICULAS DE -Fe2O3/SBA-15 PARA ESTUDIAR EL EFECTO DE LA ATMÓSFERA DE ACTIVACIÓN EN LA SÍNTESIS DE FISCHER-TROPSCH?

O. PÉREZ DE BERTI; J. F. BENGOA; G. A. PECCHI; M. V. CAGNOLI; S. G. MARCHETTI.

Gramado

Congreso; ?17º Congresso Brasileiro de Catálise ? VII Congresso de Catálise do Mercosul?,; 2013

ABSTRACT - In this work, we have prepared a ?quasi-model? catalyst, supporting γ-Fe2O3 NPs of 3 nm on SBA-15 of 11 nm pore diameter. This solid was activated following two different pre-treatments: with pure H2 and with H2:CO, in order to study the influence of the activation atmosphere on the activity and selectivity of the catalyst in the Fischer-Tropsch synthesis. The catalyst activated in pure H2 was 50 % more active than that activated in synthesis gas, and produced 40 % less of methane. These results were attributed to the different reduction velocities during the activation process.