The global production of cement has grown very rapidly in recent years, and after fossil fuels and land-use change, it is the third-largest source of anthropogenic emissions of carbon dioxide with an annual emission of 1,8-2,0 GtCO2/y representing about 5-8% of global emissions.
Several scenarios have been made for the cement sector to achieve deep CO2 emission reductions and they all primarily conclude that Carbon Capture Utilization and Storage (CCUS) has the largest CO2 reduction potential and is mandatory to reach the global climate targets. CCUS is a combination of technologies designed to prevent the release of CO2 by either recycling the CO2 into fuels and chemicals or injecting the CO2 in suitable underground storage reservoirs. Basically, capture technology separates CO2 emissions from the process, after which the compressed CO2 is either used or transported to a suitable geological storage location. The solutions and technological developments of the GreenCem project can be utilized at other cement plants globally.
The partners in the GreenCem project are Aalborg Portland, Aalborg University, DFDS, Aalborg Energi Holding, Port of Aalborg, REintegrate, RenoNord and Hydrogen Valley. COWI is represented in the project as a consultant.
The GreenCem project has received funding from the EUDP (Energy Technology Development and Demonstration Program). The EUDP supports development and demonstration of new energy technologies, supporting the danish objectives within energy and climate.