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Process for treating waste from a pithead power plant and for sequestrating carbon dioxide discharged therefrom
A process for treating waste from a pithead power plant and sequestrating carbon dioxide discharged therefrom is provided. A mixed material of solid waste from the power plant, cement and a mixing liquid is filled into a depleted coal mine and compacted. A hydrating liquid is then injected into the filler after compaction to cause hydration. After that, carbon dioxide discharged from the power plant is injected to mineralize the carbon dioxide, thereby achieving carbon dioxide sequestration and reinforcement of the depleted coal mine. The invention utilizes abundant basic oxides present in the solid waste, and the fact that calcium hydroxide and tobermorite present in the hydrated cement chemically react with the injected carbon dioxide to produce stable carbonates in solid, and thus simultaneously achieves carbon dioxide sequestration, treatment of solid waste, and reinforcement of a depleted coal mine.
Process for treating waste from a pithead power plant and for sequestrating carbon dioxide discharged therefrom
A process for treating waste from a pithead power plant and sequestrating carbon dioxide discharged therefrom is provided. A mixed material of solid waste from the power plant, cement and a mixing liquid is filled into a depleted coal mine and compacted. A hydrating liquid is then injected into the filler after compaction to cause hydration. After that, carbon dioxide discharged from the power plant is injected to mineralize the carbon dioxide, thereby achieving carbon dioxide sequestration and reinforcement of the depleted coal mine. The invention utilizes abundant basic oxides present in the solid waste, and the fact that calcium hydroxide and tobermorite present in the hydrated cement chemically react with the injected carbon dioxide to produce stable carbonates in solid, and thus simultaneously achieves carbon dioxide sequestration, treatment of solid waste, and reinforcement of a depleted coal mine.
Process for treating waste from a pithead power plant and for sequestrating carbon dioxide discharged therefrom
JIANG PEIXUE (author) / XU RUINA (author) / HE DI (author)
2018-08-21
Patent
Electronic Resource
English
IPC:
B09B
DISPOSAL OF SOLID WASTE
,
Beseitigung von festem Abfall
/
B65G
TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
,
Transport- oder Lagervorrichtungen, z.B. Förderer zum Laden oder Abladen
/
C04B
Kalk
,
LIME
/
E21B
EARTH OR ROCK DRILLING
,
Erd- oder Gesteinsbohren
Pithead Bath installation in the campine
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