US Sublime Systems is making cement headlines

Sublime Systems

US-based Sublime Systems located in Holyoke, Massachusetts, has been awarded US$87m by the US Department of Energy (DOE). The funding will be used to accelerate the construction of Sublime’s first commercial 0.03 Mta manufacturing plant in Holyoke. Sublime invented a complete new process for cement manufacturing (reported 10. Jan. 2024 in this blog). The process does not require high temperatures as in a cement kiln. It solely needs an electrolytic reactor, leaving behind a reactive calcium silicate as a pure reactive solid, to produce ASTM C1157-compliant cement.  The raw materials used are basaltic minerals or anything with 10% calcium content. The commercial facility will open as early as 2026.