Difference between using calcium oxide and calcium carbonate as solubilizers in water-coal slurry gasification
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Difference between using calcium oxide and calcium carbonate as solubilizers in water-coal slurry gasification
In the end, it is calcium oxide; calcium carbonate is easy to obtain and easy to store, but it contains more impurities
That’s correct; calcium carbonate decomposes into calcium oxide when heated. Adding either of them is detrimental to production, so it’s best to avoid adding them.
When CaO absorbs water and carbon dioxide, it turns into calcium carbonate, and its storage is difficult. For some coals with high ash fusion points, increasing the amount of basic oxides can lower the ash fusion point and improve the usability of the coal. As fluxes, the properties of these two substances are essentially the same
In the analysis, 93.5% calcium carbonate and 53.1% calcium oxide were detected – what does this mean?
Calcium carbonate decomposes upon heating into calcium oxide and CO2; certainly, the percentage of calcium oxide changes as a result.
The calcium oxide content in calcium carbonate is higher than the measured value of calcium oxide; it seems that impurities such as magnesium carbonate are mixed in with the calcium carbonate