Naturally occurring but faster

Mineralisation is a natural process that has been happening for millennia. We simply enhance and accelerate the process to remove CO₂ at scale in less than 12 months.

Safe and permanent

The safety of our operations is our highest priority. We use a range of monitoring techniques to track the fluid we inject into the subsurface, ensure the CO₂ and water are behaving as we expect, and confirm that mineralisation has taken place.

Once the CO₂ has mineralised we know it cannot escape back into the atmosphere or affect the local environment.

Carbon injection not extraction

Our process is like oil and gas exploration, but in reverse. Rather than extracting hydrocarbons, we are putting them back into the subsurface.

This means we can use existing experience, equipment and infrastructure, offering new opportunities to communities as they navigate the energy transition.

Low-cost and low-risk

Mineralisation projects can be developed quickly, with limited upfront costs. They can expand on a modular basis once the potential of each site has been proven.

An international solution

Mafic and ultramafic rocks that can naturally mineralise CO₂ appear on the Earth’s surface on every continent. Together, these rocks have the capacity to mineralise trillions of tonnes of CO₂ .

CO₂ and water

We take CO₂ from industry or directly from the atmosphere and we dissolve it in water. We use water sources that people can’t use, like seawater or treated wastewater.

Dissolve CO₂ in water creates a kind of sparkling water. This sparkling water, or injection fluid, is acidic and mobilises cations within the rock that react with the CO₂ and mineralise it.

Injecting the fluid deep underground

The injection fluid is injected deep underground, far deeper than any underground sources of drinking water. The fluid is denser than any water in the subsurface, meaning it can’t rise back towards the surface. Underground, because of increased pressure and temperature, and because of the high concentration of CO₂ in the injection fluid, the mineralisation reaction takes place very quickly.

Mineralisation

The carbonated injection fluid spreads into the rock deep underground. The injection fluid is acidic and when this acidic fluid makes contact with the rock it dissolves minerals and extracts ions that react with the CO₂ to create carbonates, or more rock.

Measurement, Monitoring, Reporting and Verification

It’s vital that we can prove mineralisation has taken place. We use a variety of geochemical and geophysical monitoring techniques to confirm the CO₂ has mineralised. Once all the CO₂ we have injected has mineralised, we can close the site knowing that the CO₂ cannot ever escape back into the atmosphere.

Renewable power

Our operations are powered by renewable energy, maximising the net amount of CO₂ eliminated in every project.

Interested in learning more about how we do CO₂ mineralisation?

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