A simple method of CO~2~ capture is by using the calcium looping cycle. The calcium looping cycle uses CaCO~3~ as a CO~2~ carrier, via the reversible reaction CaO(s) + CO~2~(g) = CaCO~3~(s), to ...
As far as clean technologies go, a dollop of cement sounds unlikely to be at the cutting edge. And with good reason: cement production accounts for 5 per cent of global carbon emissions. So it ...