In Sweden, Umeå University reported that carbon dioxide emissions from lime kilns in Sweden have been reduced by more than 36,000 tons per year, via a collaboration between the Center for Sustainable Cement and Quicklime Production at Umeå University, Nordkalk AB and the Swedish Energy Agency.
“The project focuses on implementing biofuels as an alternative to fossil fuels in lime kilns, which has been very successful,” said Matias Eriksson, director of the Center for Sustainable Cement and Quicklime Production and adjunct associate professor at the Department of Applied Physics and Electronics at Umeå University.
The project “Renewable Energy Carriers in Quicklime Production” aims to investigate and demonstrate how biofuels can be introduced as an alternative to fossil fuels in lime kilns. The aim is to reduce fossil carbon dioxide emissions in the production of quicklime by promoting the use of renewable energy carriers, such as forestry or agricultural residues, or refined biofuels.
“The project goal is to reduce carbon dioxide emissions from non-renewable energy carriers in Nordkalk AB’s quicklime production by 46%, which corresponds to 71,000 tons of carbon dioxide per year” says Matias Eriksson.
To achieve this, the project has set two sub-goals, to implement 100% renewable energy carriers at Kalkproduktion Storugns AB’s (KPAB) lime kiln in Lärbro, and to integrate 30 percent renewable energy carriers at Nordkalk AB’s lime kiln in Köping.
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