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Reformación catalítica térmica para la producción de hidrógeno con cero emisiones de CO2

Mi Peng¹, Yuzhen Ge¹, Rui Gao²

¹Beijing National Laboratory for Molecular Science, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, China.

Science (New York, N.Y.)

|February 13, 2025

Resumen

Un nuevo proceso catalítico convierte eficientemente el etanol en hidrógeno y ácido acético con mínimas emisiones de dióxido de carbono. Este método energéticamente eficiente ofrece una vía sostenible y potencialmente rentable para la producción química industrial.

Área de la Ciencia:

Ingeniería Química
Catálisis
Química sustentable

Sus antecedentes:

La industria química busca métodos de producción de hidrógeno sin emisiones de carbono.
La reforma del etanol es una vía potencial, pero los métodos tradicionales se enfrentan a desafíos de eficiencia y emisiones.

Objetivo del estudio:

Desarrollar una nueva vía catalítica térmica para el reformado parcial del etanol.
Lograr emisiones de dióxido de carbono cercanas a cero durante la producción de hidrógeno y ácido acético.

Principales métodos:

Se utilizó un catalizador con alta densidad de especies atómicas Pt1 e Ir1.
Apoyó las especies activas en un sustrato reactivo de carburo de alfa-molibdeno.
Se realizó una reforma parcial del etanol a 270°C.

Principales resultados:

Se logró una tasa de producción de hidrógeno de 331,3 mmol/g/h.
Se obtiene una selectividad del ácido acético del 84,5%.
Se han demostrado emisiones de dióxido de carbono cercanas a cero.

Conclusiones:

La vía catalítica desarrollada es energéticamente eficiente y ofrece una alta selectividad para el hidrógeno y el ácido acético.
El análisis tecnoeconómico indica la rentabilidad a escala industrial.
Presenta una vía sostenible para la producción química con una huella de carbono reducida.

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