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Propane dehydrogenation on mesoporous chromium-containing silica catalysts

1998; Elsevier BV; Linguagem: Inglês

10.1016/s0167-2991(98)80258-9

2542-6613

Pedro Maireles‐Torres, Manuel Alcántara-Rodríguez, F.J. Pérez-Reina, Enrique Rodríguez‐Castellón, Pascual Olivera‐Pastor, Antonio Jiménez‐López,

Catalysis and Oxidation Reactions

This paper reports the synthesis, characterisation and catalytic properties in the dehydrogenation of propane of a series of SiCr-MCM materials. The solids obtained under different synthesis conditions, using a surfactant-assisted sol–gel methodology, have been investigated by X-ray powder diffraction, thermogravimetric analyses, IR and diffuse reflectance spectroscopies. After surfactant removing, textural parameters obtained from nitrogen adsorption-desorption isotherms at 77 K reveal the mesoporous character of the SiCr-MCM materials. BET surface areas ranged between 550 and 790 m2 g− 1 and pore size distributions exhibited a maximum pore diameter between 17 and 28 Å. Catalytic properties have been evaluated by using the dehydrogenation of propane under non-oxidative and oxidative conditions.