Sulzer and Blue Planet are working on CO2-negative concrete
The industrial group Sulzer supports the Californian company Blue Planet with its technology for the cost-effective production of CO2-negative concrete. They want to improve the footprint of the CO2-emitting industries through innovative CO2 capture and mineralization.
Sulzer and Blue Planet want to work together to accelerate the transition to a sustainable cement industry. For this they have now entered into a partnership. The Californian specialist for CO2 capture and mineralization uses technologies from the Winterthur company to reduce CO2 in order to lower greenhouse gas emissions from industrial operations.
According to a press release from Sulzer, Blue Planet has developed a profitable CO2 capture, use and storage system that captures CO2 from a variety of emission sources such as power plants, refineries, steel and cement plants. The CO2 is mineralized in solid, crystalline form and thus permanently bound. The granulate is added to concrete as a 70 to 90 percent main component. As usual, these aggregates are then bound by cement. With a share of 7 percent, cement makes a significant contribution to global CO2 emissions. But the CO2 footprint of the cement in the concrete is "more than compensated for" by the CO2 bound in the synthetic limestone aggregates, according to Sulzer.
"We are pleased to be able to contribute our expertise in circular applications to such a future-oriented project," said Sulzer's Chemtech division manager, Torsten Wintergerste, quoted in the press release. "It will help reduce carbon emissions from industrial applications and the cement sector – a major concern of our customers."