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'ZeroCAL' cement production process takes CO2 out of the equation | With 98% less CO2 emissions than traditional methods by decomposing limestone – the key raw material involved in making cement – to access calcium oxide, aka lime, without releasing carbon dioxide in the process.
After a decade in the works, researchers at University of California, Los Angeles, have successfully devised a way to produce cement with 98% less CO2 emissions than traditional methods.
After a decade in the works, researchers at University of California, Los Angeles, have successfully devised a way to produce cement with 98% less CO2 emissions than traditional methods. The UCLA team achieved this by decomposing limestone – the key raw material involved in making cement – to access calcium oxide, aka lime, without releasing carbon dioxide in the process. "It addresses the carbon emissions resulting from limestone’s decomposition while providing clean hydrogen and oxygen to heat the cement kiln," notes team lead Gaurav Sant.
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