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Revista EIA
versión impresa ISSN 1794-1237versión On-line ISSN 2463-0950
Resumen
RUIZ-LLANO, Jorge; ARROYAVE-MANCO, Camilo; ARBOLEDA-ECHAVARRIA, Johana y ECHAVARRIA-ISAZA, Adriana. Aluminophosphates synthesis and post-synthesis modification for its catalytic evaluation on the propylen oligomerization. Rev.EIA.Esc.Ing.Antioq [online]. 2020, vol.17, n.33, pp.16-26. ISSN 1794-1237. https://doi.org/10.24050/reia.v17i33.1260.
Aluminophosphates and silicoaluminophospates are molecular sieves families with ordered pore systems with an alternative accommodation of AlO 4 and PO 4. This molecular sieves can be use like catalyst in propylen oligomerization reaction due their textural properties and selectivity toward some products for contribute to obtaining olefins of carbon chains longer achieving thus the synthesis of sulfur free liquid fuels. In this work, AlPO-5 and SAPO-5 were synthetize and was evaluated its catalytic activity in propylen oligomerization. Molecular sieves obtained were characterized by x-ray diffraction (XRD), thermal gravimetric analysis (TGA), atomic absorption spectrometry (AA), ammonia temperature programmed desorption (NH3-TPD) and scanning electronic microscopy (SEM). The reaction products were analyzed by gas chromatography (GC). A higher yield was obtained in the proportion of heavy oligomers after impregnation of Cr and Ni on AlPO-5, being Cr 3% AlPO-5 the catalyst with the highest yield.
Palabras clave : silicoaluminophosphate; impregnation, propylen oligomerization, catalysis.