INCAPE   05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
NiCe/ɣ-Al2O3 coated onto cordierite monoliths applied to Oxidative Dehidrogenation of Ethane (ODE).
Autor/es:
V. G. MILT; J. P. BORTOLOZZI; M. A. ULLA; PAULA BRUSSINO; E. D. BANÚS
Lugar:
Donostia - San Sebastián
Reunión:
Conferencia; 5th International Conference on Structured Catalysts and Reactors (ICOSCAR 5); 2016
Institución organizadora:
Universidad del País Vasco
Resumen:
IntroductionEthylene is currently one of the most demanded compounds in chemical industry due to its utility. It is used to manufacture polymers, ethylene oxide, styrene, etc. Global ethylene consumption reached 129 million m.t. in 2012 and is forecast to grow at 4% per year for the next 5 years [1]. Steam cracking of naphtha and ethane is currently the most established process of ethene manufacture and it´s also the most energy consuming process worldwide. Temperatures reach up to 800°C and even more. Developing a structured catalyst that operates at low temperature (400-450°C) and that is suitable for the oxidative dehydrogenation of ethane (ODE) comes up as a promising alternative for this compound manufacture.GoalsThe aim of this work is to deposit homogeneous NiCe/ɣ-Al2O3 films onto cordierite monoliths, where Ce acts as a promoter, characterize these structured catalysts and test them in the ODE reaction. ExperimentalThree catalytic systems with 15, 25 and 40% wt.NiCe (with respect to alumina) were prepared by a two stages procedure. Firstly, an alumina layer of ̴ 250 - 300 mg was deposited onto the cordierite monoliths (Corning, 400 cpsi) using the washcoating method. Cycles of immersion ? blowing ? drying were carried on until the desired load was reached, submerging the substrates into a suspension containing micro and nanoparticles of Al2O3. Then, these were calcined in muffle at 550°C for 2 h. The active phase was incorporated latter by immersion in a solution of Ni(NO3)2 and Ce(NO3)3 (0.43 M), with a theoretical Ce/Ni ratio of 0.17 and finally the samples were calcined at 550°C for 2 h. These catalysts were named NiCe(X)-M, where X=15, 25 or 40% wt. NiCe and M represents the monoliths. The three structured catalysts were characterized physic-chemically and morphologically and their mechanical properties were studied. Finally, their catalytic behavior was investigated in the ODE reaction.