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La mezcla física de un catalizador y un polímero hidrofóbico promueve la hidrogenación del CO a través de la

Wei Fang¹, Chengtao Wang^1,2, Zhiqiang Liu³

¹Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.

Science (New York, N.Y.)

|July 21, 2022

Resumen

Un nuevo catalizador que combina carburo de cobalto y manganeso con poli (divinilbenceno) elimina eficientemente el agua durante la conversión de gas de síntesis. Esta mezcla hidrofóbica casi duplica las velocidades de reacción y mejora la producción de olefinas ligeras, mostrando una excelente durabilidad.

Área de la Ciencia:

Catálisis
Ciencias de los materiales
Ingeniería Química

Sus antecedentes:

La eliminación de agua es crucial para las reacciones limitadas por su presencia, que a menudo requieren reactores de membrana.
La conversión de syngas es vital para la producción de productos químicos valiosos, pero puede ser inhibida por el subproducto de agua.

Objetivo del estudio:

Desarrollar un método más simple y eficaz para la eliminación de agua en la conversión de gas de síntesis.
Mejorar la velocidad y la selectividad de la conversión de gas de síntesis utilizando un nuevo sistema de catalizador.

Principales métodos:

Se preparó una mezcla física de poli (divinilbenceno) hidrófobo y carburo de cobalto-manganeso.
El rendimiento del catalizador se evaluó en la conversión de gas de síntesis a 250°C.
Se analizó el equilibrio de absorción de agua en la superficie del catalizador.

Principales resultados:

El catalizador de carburo de CoMn / poli (divinilbenceno) casi duplicó la tasa de conversión de gas de síntesis al facilitar la eliminación de agua.
La conversión de monóxido de carbono alcanzó el 63,5%, con una selectividad de olefinas ligeras del 71,4%.
El catalizador demostró una durabilidad de más de 120 horas de funcionamiento continuo.

Conclusiones:

Una simple mezcla física de un polímero hidrofóbico y un carburo de metal puede manejar eficazmente el agua en reacciones catalíticas.
Este enfoque ofrece un avance significativo sobre los reactores de membrana tradicionales para las conversiones sensibles al agua.
El catalizador desarrollado muestra una alta eficiencia, selectividad y estabilidad para la conversión de gas de síntesis.

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