Cement production using an electrolyzer at ambient temperature instead of using a 1,450°C kiln

https://www.eurekalert.org/news-releases/1127339

"electrochemical cell dissolves limestone in acidic environment at 1 electrode releasing CO2 easily captured (no scrubbing), 2nd electrode: dissolved calcium precipitates out as calcium hydroxide (slaked lime) reacted with silica producing cement... easily turned on/ off matching intermittent renewable electricity input... potentially eliminates roughly 8% global CO2 emissions caused by heating limestone to massive temperatures and due to the chemical reaction itself releasing CO2 byproduct"

Related: Basalt could be the key to greener and cheaper cement
https://www.eurekalert.org/news-releases/1127865