Ragn-Sells started testing valorisation of oil shale ash in 2019

Swedish environmental company Ragn-Sells entered into a cooperation agreement with Eesti Energia for finding solutions to the valorisation of oil shale ash and its release back into circulation. The new technology currently being tested helps solve one of the challenges of oil shale energy in Estonia – what could be done with the by-product of energy generation, i.e. bottom ash? Approximately 80% of the energy generated in Estonia is produced from oil shale. This creates large quantities of by-products, such as bottom ash, which is currently mostly deposited.