Scale mineral carbonation
using industrial by-products.
Introducing ROCKDACS innovative solutions for carbon removal and storage by Nordic DAC Group AB. We use mineral carbonation to transform industrial by-products, including incinerator ashes, combustion fly ash, black liquor, paper mill waste, organic residuals, concrete rests, mine tailings, and steel slag, into permanent carbon sinks, raw materials, and components for a range of products.
We are excited about collaborating with various applied research partners and leading industries to enhance mineral carbonation processes, contributing to our collective efforts in decarbonization. In response to the urgent global need for carbon removal, mineral carbonation presents a significant opportunity to harness its potential and contribute to a sustainable future.
Join us in advancing mineral carbonation pilots and projects.
IMPACT
Globally, approximately 7 billion tonnes of alkaline by-products are generated each year.
With the potential to capture between 30–800 kg of CO2 per tonne of by-product. A significant amount of such materials are produced in Sweden, mainly by the mining and steel industry.
It is estimated that there are around 200 gigatons of historical tailings, which have the potential to remove 40 gigatons of carbon if a carbon dioxide uptake of 20% per tonne is achieved. However, tailings are typically stored in piles or enclosed dams, which makes it difficult for them to undergo significant carbonation within a reasonable timeframe.
7 billion tonnes of Alkaline
by-products are generated each year.
1.4 gigatons
Carbon removal.
200 gigatons
Historical tailings.
40 gigatons
Carbon removal.
Temperature
The carbonation process increases with increasing temperature.
Humidity
Range 50–60%.
Materials
Carbon dioxide uptake in demolished and crushed concrete or mine by-products.
Particle size and porosity
The carbonation rate will be faster after demolition due to the increased surface area of finer particles.
