Magnesium-based hydrogen-heat combined storage system based on MgO / MgCO3 thermochemical heat storage

By using MgO/MgCO3 thermochemical thermal storage reaction pair and doping composite alkali metal nitrates in a magnesium-based solid hydrogen storage device, the problem of low energy utilization rate of the magnesium-based hydrogen storage system is solved, and efficient hydrogen thermal fed and thermal self-sufficiency management is achieved.

CN119713945AActive Publication Date: 2025-03-28SHANGHAI JIAOTONG UNIV
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Patent Information

Application Number
CN202510032407.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-03-28
Estimated Expiration
2045-01-08

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Abstract

The invention discloses a magnesium-based hydrogen-heat combined storage system based on MgO / MgCO3 thermochemical heat storage, and relates to the field of hydrogen energy. The MgO / MgCO3 heat storage device (2) wraps the magnesium-based solid hydrogen storage device (1); the vacuum heat insulation layer (3) wraps the magnesium-based solid hydrogen storage device (1) and the MgO / MgCO3 heat storage device (2); the hydrogen supply device (4) and the hydrogen utilization device (21) are connected with the magnesium-based solid hydrogen storage device (1); the carbon dioxide storage device (14) and the carbon dioxide supply device (18) are connected with the MgO / MgCO3 heat storage device (2). The MgO / MgCO3 thermochemical heat storage reaction pair is utilized, heat released when the magnesium-based hydrogen storage material absorbs hydrogen is efficiently stored, heat supply is conducted when the magnesium-based hydrogen storage material releases hydrogen, the energy utilization rate of the magnesium-based hydrogen-heat combined storage system can be effectively increased, and heat dissipation of the system can be reduced through vacuum heat insulation layer wrapping.
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Citation Information

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