Technological Shift Can Make Cement Production More Sustainable and Energy-Efficient
Research at Umeå University demonstrates how electrification and carbon capture can reduce emissions from cement production, making it more sustainable. The cement industry accounts for approximately 8% of global CO2 emissions, primarily due to the heating of limestone and the use of fossil fuels. New technologies, such as electrified plasma heating and carbon capture, offer ways to reduce these emissions.
José Aguirre Castillo, an industrial PhD student at Umeå University, has explored how high CO2 concentrations can improve chemical reactions in cement production. His research shows that this can make the process more energy-efficient and enhance the quality of cement. By adjusting the composition and particle size of raw materials, energy consumption can be further reduced, while alternative binders, such as volcanic material, can be used to lessen the environmental impact.
The research also reveals that carbon capture can be integrated into existing cement plants without compromising cement quality, enabling the industry to cut emissions without sacrificing strength or durability.