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Cake day: February 16th, 2025

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  • Unfortunately using calcium carbonate (CaCO3) from this process to make calcium oxide (CaO) for concrete would release whatever carbon dioxide (CO2) you sequestered in the process.

    As you can see, to get CaO from CaCO3 you have to remove a C and two O’s. or properly put, a CO2. Doing this would actually release more CO2 than you sequestered originally because to get that CaO you’d have to heat up the calcium carbonate to a few thousand degrees again, burning more coal or whatever to create the heat.