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Published on: October 25, 2017
Cogeneración de energía eléctrica y óxido nítrico
Resumen
Una nueva célula de combustible de electrolito sólido que utiliza combustible de amoníaco logra altos rendimientos de óxido nítrico de más del 60% junto con la generación de electricidad. Esta tecnología es prometedora para la coproducción eficiente de ácido nítrico y energía eléctrica.
Área de la Ciencia:
- La electroquímica es electroquímica.
- Ingeniería Química Ingeniería Química.
- Ciencia de los materiales Ciencia de los materiales.
Sus antecedentes:
- Las pilas de combustible de electrolito sólido (SEFC) ofrecen potencial para una conversión de energía eficiente.
- El amoníaco es un combustible atractivo debido a su alto contenido de hidrógeno y potencial para energía libre de carbono.
- Los métodos actuales para la producción de ácido nítrico consumen mucha energía.
Objetivo del estudio:
- Para construir y evaluar una pila de combustible de electrolito sólido utilizando amoníaco como combustible.
- Investigar la coproducción de óxido nítrico y energía eléctrica.
- Para identificar los parámetros clave que influyen en el rendimiento de la pila de combustible y la selectividad del producto.
Principales métodos:
- Fabricación de una pila de combustible de electrolito sólido.
- Funcionamiento de la pila de combustible con amoníaco como fuente de combustible.
- Análisis del rendimiento del producto (óxido nítrico) y la potencia eléctrica de salida.
Principales resultados:
- El SEFC construido funcionó con éxito con combustible de amoníaco.
- Se lograron rendimientos de óxido nítrico superiores al 60%.
- Se demostró la producción simultánea de energía eléctrica.
- Se identificaron dos números críticos adimensionales que rigen la selectividad del producto y la potencia de salida.
Conclusiones:
- El SEFC alimentado con amoníaco es una tecnología viable para la cogeneración.
- Este enfoque ofrece una vía prometedora para la producción simultánea de ácido nítrico y energía eléctrica.
- Los números adimensionales identificados proporcionan una base para optimizar el diseño y el funcionamiento de las pilas de combustible.
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