Making Portland cement requires reaching ultra-high temperatures, over 1,450 °C (2,650 °F). Instead, Cemvision makes a material that requires lower temperatures (roughly 1,200 °C, or 2,200 °F), which reduces the amount of energy required.
The company also uses alternative sources for heating. Rather than fossil fuels, Cemvision can use a combination of plasma, hydrogen, and electricity. The startup tested its process in a demonstration-scale kiln, which can make up to 12 tons per day. The…

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