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El almacenamiento de metano en hidratos de gas de agua seca
Weixing Wang1, Christopher L Bray, Dave J Adams
1Department of Chemistry and Centre for Materials Discovery, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom.
Journal of the American Chemical Society
|August 8, 2008
Resumen
El agua seca, un polvo estabilizado con sílice, almacena eficientemente el metano en forma de hidrato, acercándose al objetivo volumétrico del Departamento de Energía. Su gran superficie permite una rápida absorción de metano sin mezclarse.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Ingeniería Química Ingeniería Química.
- Almacenamiento de energía Almacenamiento de energía
Sus antecedentes:
- El almacenamiento de metano es crítico para las aplicaciones de gas natural.
- Los métodos de almacenamiento existentes enfrentan desafíos en cuanto a densidad volumétrica y eficiencia.
- El desarrollo de nuevos materiales para el almacenamiento eficiente de metano es un área de investigación en curso.
Objetivo del estudio:
- Evaluar el agua seca como material para el almacenamiento de metano.
- Para determinar la capacidad de almacenamiento de metano y la tasa de absorción de agua seca.
- Evaluar el potencial del agua seca para alcanzar los objetivos de almacenamiento de energía.
Principales métodos:
- Utilizando agua seca estabilizada con sílice, un polvo compuesto de 95% de agua en peso.
- Investigar el almacenamiento de metano en forma de hidrato bajo condiciones específicas de presión y temperatura (2,7 MPa y 273,2 K).
- Medición de la cinética de absorción de metano y la capacidad de almacenamiento final.
Principales resultados:
- El agua seca logró una capacidad de almacenamiento de metano de 175 volúmenes de metano a temperatura y presión estándar (STP) por volumen.
- Esta capacidad es comparable al objetivo volumétrico del Departamento de Energía para el almacenamiento de metano.
- Se observó una rápida absorción de metano, alcanzando una saturación del 90% en 160 minutos sin mezclar.
Conclusiones:
- El agua seca demuestra un potencial significativo como material de almacenamiento de metano de alta capacidad.
- Las propiedades del material, incluida su alta relación superficie-volumen, facilitan la rápida adsorción de gas.
- El agua seca ofrece una vía prometedora para el avance de las tecnologías de almacenamiento de metano.
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