Evaluation of ZrO2/Al2O3 system as catalysts in the catalytic transfer hydrogenation of furfural to obtain furfuryl alcohol
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2021-10-26Autor
García Sancho, Cristina
Jiménez Gómez, Carmen Pilar
Cecilia, Juan Antonio
Moreno Tost, Ramón
Mérida Robles, María Josefa
Maireles Torres, Pedro Jesús
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Applied Catalysis A: General 609 : (2021) // Article ID 117905
Resumen
ZrO2, Al2O3 and ZrO2/Al2O3 with different Zr/Al molar ratio, have been synthesized by coprecipitation and subsequent calcination. The resulting catalysts were characterized by X-ray diffraction, transmission electron microscopy, N2 adsorption-desorption at -196 ◦C, CO2-thermoprogrammed desorption, NH3-thermoprogrammed desorption and X-ray photoelectron spectroscopy. Then, the catalysts were evaluated in the Meenwein-PonndorfVerley reduction of furfural (FUR) using 2-propanol as sacrificing alcohol. The catalyst with a Zr/Al molar ratio of 1, Zr5Al5, reached the highest conversion value at shorter reaction times, attaining a FUR conversion of 95 % with a yield of furfuryl alcohol (FOL) above 90 % after 5 h of reaction at 130 ◦C, due to its greater amount of acid sites, as well as higher specific surface area and pore volume.