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Proceso altamente eficiente para la producción de biocombustibles a partir de etanol catalizado por complejos de
Yinjun Xie1, Yehoshoa Ben-David1, Linda J W Shimon1
1Departments of †Organic Chemistry and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot 76100, Israel.
Journal of the American Chemical Society
|July 12, 2016
Resumen
Este estudio presenta un nuevo catalizador de pinza de rutenio para la producción eficiente de biocombustibles a partir de etanol a través de una reacción de tipo Guerbet. El proceso logra una alta conversión de etanol y produce valiosos alcoholes C4, C6 y C8 con números de facturación récord.
Área de la Ciencia:
- Catálisis
- Química ecológica
- Producción de biocombustibles
Sus antecedentes:
- La reacción de Guerbet es un método valioso para la síntesis de alcohol.
- El desarrollo de catalizadores eficientes y sostenibles para la producción de biocombustibles es crucial.
Objetivo del estudio:
- Desarrollar un proceso catalizado por pinza de rutenio altamente eficiente para la producción de biocombustibles a partir de etanol.
- Para lograr una alta conversión de etanol y rendimientos significativos de alcoholes más altos.
- Investigar el rendimiento catalítico y los aspectos mecánicos.
Principales métodos:
- Utilizó un catalizador de pinza de rutenio para la reacción de tipo Guerbet del etanol.
- Optimización de las condiciones de carga y reacción del catalizador.
- Se han realizado estudios mecanicistas para identificar las especies activas y las vías de desactivación.
Principales resultados:
- Se logró la mayor conversión de etanol reportada (73,4%) para una reacción de tipo Guerbet utilizando un catalizador de 0,02 mol%.
- Produjo importantes rendimientos de alcoholes C4 (35,8%), C6 (28,2%) y C8 (9,4%).
- Demostró la posibilidad de utilizar cargas de catalizador tan bajas como 0,001 mol%, lo que arrojó un número de facturación récord de 18,209.
Conclusiones:
- Se ha establecido un proceso catalizado por pinza de rutenio altamente eficiente para la conversión de etanol en biocombustible.
- El catalizador muestra un excelente rendimiento con números de rotación récord y potencial de baja carga del catalizador.
- Las ideas mecanicistas proporcionan una base para una mayor optimización del catalizador y el desarrollo del proceso.
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