METHODS AND PROCESSES FOR THE USE OF CALCIUM- AND MAGNESIUM-BEARING OXIDES, HYDROXIDES, AND SILICATES; CALCIUM- AND MAGNESIUM-BEARING AQUEOUS STREAMS TO CAPTURE, CONVERT, AND STORE CARBON DIOXIDE AND PRODUCE HYDROGEN
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United States of America Patent
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Issued Date -
Jan 19, 2023
app pub date -
Jan 4, 2021
filing date -
Jan 4, 2021
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Abstract
The present disclosure relates to methods for producing hydrogen and calcium- or magnesium-bearing carbonates by capturing, converting, and storing carbon dioxide. The methods may include providing one or more calcium- or magnesium-bearing compounds; providing one or more water-soluble oxygenates; providing a plurality of catalysts; and reacting one or more calcium- or magnesium-bearing compounds and one or more water-soluble oxygenates with plurality of catalysts under conditions to produce hydrogen and calcium- or magnesium-bearing carbonates. The methods may include providing one or more calcium- or magnesium-bearing silicates; providing carbon monoxide; providing water vapor; and reacting one or more calcium- or magnesium-bearing silicates, carbon monoxide, and water vapor. The methods may include providing one or more calcium- or magnesium-bearing compounds; providing one or more water-soluble oxygenates; providing a catalyst; and reacting one or more calcium- or magnesium-bearing compounds and one or more water-soluble oxygenates with said catalyst.
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