Integrated chemical process
First Claim
1. A process for the solidification of carbon dioxide by reaction of carbon dioxide with an activated alkali metal or alkaline earth metal silicate feedstock to form a corresponding alkali metal or alkaline earth metal carbonate, which process comprises direct thermal activation of an alkali metal or alkaline earth metal silicate feedstock by combustion of fuel to produce an activated feedstock, suspending the activated feedstock in a solvent slurry and contacting the activated feedstock with carbon dioxide to convert the carbon dioxide to form an alkali metal or alkaline earth metal carbonate.
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Abstract
A mineral carbonation process, characterized in that the silicate feedstock is thermally activated by using heat generated from the combustion of fuel prior to reacting the activated slurry feedstock with carbon dioxide.
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Citations
28 Claims
- 1. A process for the solidification of carbon dioxide by reaction of carbon dioxide with an activated alkali metal or alkaline earth metal silicate feedstock to form a corresponding alkali metal or alkaline earth metal carbonate, which process comprises direct thermal activation of an alkali metal or alkaline earth metal silicate feedstock by combustion of fuel to produce an activated feedstock, suspending the activated feedstock in a solvent slurry and contacting the activated feedstock with carbon dioxide to convert the carbon dioxide to form an alkali metal or alkaline earth metal carbonate.
Specification