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Catalizador de manganeso definido molecularmente para la hidrogenación a baja temperatura del monóxido de carbono en
Pavel Ryabchuk1, Kenta Stier2, Kathrin Junge1
1Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein Straße 29a , Rostock 18059 , Germany.
Journal of the American Chemical Society
|October 3, 2019
Resumen
Un nuevo catalizador de manganeso permite una síntesis eficiente de metanol a partir de monóxido de carbono e hidrógeno en condiciones más suaves. Este avance ofrece una alternativa más sostenible y energéticamente eficiente a los procesos industriales actuales.
Área de la Ciencia:
- Ingeniería Química
- Catálisis
- Química sustentable
Sus antecedentes:
- La síntesis de metanol a partir de gas de síntesis es un proceso industrial importante, que generalmente requiere altas temperaturas y presiones.
- Los métodos actuales utilizan catalizadores de cobre y zinc, lo que presenta oportunidades para alternativas más eficientes energéticamente.
Objetivo del estudio:
- Desarrollar un nuevo catalizador de manganeso definido molecularmente para la síntesis de metanol a baja temperatura y presión.
- Investigar un nuevo ciclo catalítico que implique promotores de aminas para una mayor eficiencia.
Principales métodos:
- Utilizó simulaciones mecánicas cuánticas y cribado virtual de alto rendimiento para la evaluación y optimización del catalizador.
- Utilizan promotores basados en aminas para facilitar la captura de monóxido de carbono y la formación de productos intermedios.
- Se han realizado investigaciones espectroscópicas detalladas y estudios de modelos para elucidar el ciclo catalítico.
Principales resultados:
- Se logra la síntesis de metanol a temperaturas más bajas (120-150 °C) y presiones (50 bar) utilizando un catalizador de manganeso.
- Se ha demostrado una gran selectividad hacia la producción de metanol.
- Números de rotación de catalizadores reportados altos, llegando hasta 3170.
Conclusiones:
- El catalizador de manganeso desarrollado ofrece una vía prometedora y energéticamente eficiente para la síntesis de metanol.
- El nuevo enfoque catalítico que utiliza promotores de aminas representa un avance significativo en la tecnología de procesos químicos.
- Este método ofrece una alternativa sostenible a las vías de síntesis convencionales de alta presión y alta temperatura.
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