The chemical recycling of used motor oil via catalytic cracking to convert it into secondary diesel-like fuels is a sustainable and technically attractive solution for managing environmental concerns associated with traditional disposal. In this context, this study was conducted to screen basic and acidic-aluminum silicate catalysts doped with different metals, including Mg, Zn, Cu, and Ni. The catalysts were thoroughly characterized using various techniques such as N2 adsorption–desorption isotherms, FT-IR spectroscopy, and TG analysis. The liquid and gaseous products were identified using GC, and their characteristics were compared with acceptable ranges from ASTM characterization methods for diesel fuel. The results showed that metal doping improved the performance of the catalysts, resulting in higher conversion rates of up to 65%, compared to thermal (15%) and aluminum silicates (≈20%). Among all catalysts, basic aluminum silicates doped with Ni showed the best catalytic performance, with conversions and yields three times higher than aluminum silicate catalysts. These findings significantly contribute to developing efficient and eco-friendly processes for the chemical recycling of used motor oil. This study highlights the potential of basic aluminum silicates doped with Ni as a promising catalyst for catalytic cracking and encourages further research in this area.
Este trabajo presenta la síntesis, y caracterización parcial, de aluminosilicatos mesoporosos obtenidos a partir de un xerogel híbrido organo-inorgánico, utilizando el biopolímero quitosano conjuntamente con un proceso de tratamiento hidrotermal como herramientas de modelación estructural. Mediante comparación con las características de su contraparte blanco, que carece de quitosano, se establece el papel del biopolímero como generador de mesoporosidad y estabilizador de la red.Mediante la reacción de craqueo catalítico de Cumeno se determina que el material posee, a diferencia del material preparado sin quitosano, grupos ácidos con buena estabilidad hidrotermal. Esto hace que pueda ser considerado como un potencial catalizador para la transformación de moléculas de gran tamaño.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.