The selective styrene oxidation for benzaldehyde production under microwave irradiation was studied over Co-ZSM-11 and Fe-ZSM-11catalysts. Their catalytic activity was evaluated by using these catalysts in two different forms: compacted pellets and fine p

FEDERICO AZZOLINA JURY,; ISABELLE POLAERT; LIONEL ESTEL; LILIANA PIERELLA

Congreso; 4th International Congress on Green Process Engineering; 2014

Zeolites are crystalline microporous aluminosilicates and they are the most important heterogeneous acid catalysts in oil refinery, petrochemistry and fine chemical synthesis due to their strong acidity, shape selectivity and high hydrothermal stability [1]. The ZSM-11 zeolite, a MEL type high silica zeolite, contains straight intersecting channels having same elliptical pore size (5.4 Å X 5.3 Å) which confers special catalytic and pervaporation properties [2]. Zeolites are usually synthetized in classical ovens during several days (up to 14) with considerable energy consumption leading to the production of high cost catalysts. Microwave heating provides several advantages over the classical synthesis such as rapid heating, homogeneous nucleation, supersaturation by the rapid dissolution of precipitated gels and a shorter crystallization time [3].