| 摘要 |
A process for storing excess energy produced by a power grid as chemical energy, comprising forming a first carbon-containing product through an endothermic reaction, storing this product and reacting the stored product exothermically to form a second carbon containing product of greater thermodynamic stability for use when additional electricity is required. The energy released by the exothermic reaction may be harnessed to supply power. The first carbon containing product may be carbon monoxide, carbon dioxide, methane or a combination of these. Carbon dioxide for use in this reaction may be generated through calcination of calcium carbonate 10. The second carbon containing product may be carbon dioxide or carbon. The endothermic and exothermic reactions may be the boudouard reaction (a redox reaction of carbon monoxide and dioxide). The first product may be stored 15 for up to 24 hours as a metal complex, such as a carbonyl complex. The second carbon containing product may then be used as fuel for a fuel cell 5. |
