SUBLIME SYSTEMS: ZERO-CARBON CEMENT
The challenge
The cement industry has traditionally been a contributor to carbon emissions due to its intensive use of limestone and high-temperature kilns.
The solution
Sublime Systems’ process replaces carbon-intensive limestone with calcium silicate minerals or industrial wastes and uses an electrochemical method at room temperature to decompose the raw materials into their constituent elements. This innovative approach decarbonizes cement production by avoiding CO2 emissions, without the added cost and complexity of carbon capture.
The result
This approach can enable more than 90% decarbonization in cement production, bringing us closer to zero-emissions goals. The process can be completely powered by renewable electricity, eliminating dependence on traditional kilns and significantly reducing energy consumption. The result is a low-emission cement product that does not compromise performance of the final product.
Ram Muthu
Head of Operational Excellence at Holcim
“The Sublime Systems team has developed a unique technology to decarbonize cement, cutting across the entire production process from the use of clean electricity to carbon-free raw materials. We are excited about this technology’s potential and are delighted to be partnering to bring it to market at scale. This investment advances our strategy to decarbonize construction by scaling up the most innovative technologies across our operations.”
Dr. Leah Ellis
CEO and Co-Founder of Sublime Systems
“In the cement industry, scale is everything. We are proud to collaborate with Holcim who supports our mission of swift and massive impact. By pairing Sublime’s technology with Holcim’s advanced global operations from manufacturing and logistics to commercial distribution, we can scale up our impact together.”
