CO2Valorize
Lead Research Organisation:
Siemens (United Kingdom)
Department Name: Research and development
Abstract
Cement production is responsible for 8 % of global CO2 emissions, which mainly come from the processing of limestone. CO2Valorize
proposes a new approach to drastically reduce these emissions by partly replacing some of the limestone content with
supplementary cementitious materials (SCM). Such materials are additionally carbonated using captured CO2, so this partreplacement
process utilises captured CO2. Promising, calcium silicates rich SCM can come from waste materials such as mine tailings
and recycled concrete, all of which are available in large quantities. The carbonation process of such materials is complex and barely
understood to date. Our networks aim to lay the scientific foundations to create fundamental knowledge on the mechanisms,
reaction kinetics, the physico-chemical subprocess, and the performance of the modified cement in order to provide a proof-ofconcept
and show that a CO2 reduction by 50 % per tonne of cement produced is feasible. The project is driven by leading companies
that represent important parts of the value chain and ensure a fast uptake of the results with the potential to commercialise new
equipment, processes and software during and after the project. The structured approach combines complementary research for
each individual project in the academic and industry sector. This is accompanied by a balanced mix of high-level scientific courses
and transferable skills delivered by each partner locally and in dedicated training schools and workshops at network level. This way,
each doctoral candidate builds up deep scientific expertise and interdisciplinary knowledge to deliver game-changing cleantech
innovations during and after the project. CO2Valorize is impact-driven and strives for portfolios of high-class joint publications in
leading journals and patents. The transfer of the results into first-of-its-kind engineering solutions contribute to the next generation
of cement processes that can mitigate climate change.
proposes a new approach to drastically reduce these emissions by partly replacing some of the limestone content with
supplementary cementitious materials (SCM). Such materials are additionally carbonated using captured CO2, so this partreplacement
process utilises captured CO2. Promising, calcium silicates rich SCM can come from waste materials such as mine tailings
and recycled concrete, all of which are available in large quantities. The carbonation process of such materials is complex and barely
understood to date. Our networks aim to lay the scientific foundations to create fundamental knowledge on the mechanisms,
reaction kinetics, the physico-chemical subprocess, and the performance of the modified cement in order to provide a proof-ofconcept
and show that a CO2 reduction by 50 % per tonne of cement produced is feasible. The project is driven by leading companies
that represent important parts of the value chain and ensure a fast uptake of the results with the potential to commercialise new
equipment, processes and software during and after the project. The structured approach combines complementary research for
each individual project in the academic and industry sector. This is accompanied by a balanced mix of high-level scientific courses
and transferable skills delivered by each partner locally and in dedicated training schools and workshops at network level. This way,
each doctoral candidate builds up deep scientific expertise and interdisciplinary knowledge to deliver game-changing cleantech
innovations during and after the project. CO2Valorize is impact-driven and strives for portfolios of high-class joint publications in
leading journals and patents. The transfer of the results into first-of-its-kind engineering solutions contribute to the next generation
of cement processes that can mitigate climate change.
