C02 Mineralisation
Turning CO₂ Into Stone for Good
To achieve Net Zero climate targets, estimates suggest we will need to sequester 10 gigatons of CO₂ annually by 2050. While cutting emissions is essential, it’s not enough. We also need to remove and store excess carbon from the atmosphere, and carbon mineralisation is one of the most effective ways to do it.
What Is Carbon Mineralisation?
Carbon mineralisation is a natural process where CO₂ reacts with certain types of rock to form stable, solid minerals, locking carbon away for geological timeframes. Decahydron has developed technology to accelerate this process by injecting supercritical CO₂ into ultramafic rock, which is uniquely suited to absorb and mineralise carbon permanently. Supercritical CO₂ is carbon dioxide held at a temperature and pressure high enough to behave like both a gas and a liquid. This hybrid state makes it highly effective for carbon storage.
Why Ultramafic Rock?
Ultramafic rock is rich in magnesium and iron, making it ideal for carbon mineralisation. When CO₂ interacts with it, a permanent transformation occurs: the carbon becomes part of the rock itself. No risk of leaks, no need for ongoing management – just safe, permanent CO₂ storage.
What makes Decahydron’s approach different?
Our approach to carbon mineralisation is engineered for sustainability and scale and part of our dual-process that we also use to generate natural hydrogen.
No water required:
100% CO₂ injection efficiency:
Every bit of storage capacity is used for CO₂, maximizing value.
25x lower CAPEX:
No water infrastructure means dramatically reduced capital costs compared to traditional sequestration methods.
Not reliant on pure CO₂:
We can mineralise industrial CO₂ streams without costly purification.
What makes Decahydron’s approach different?
Our approach to carbon mineralisation is engineered for sustainability and scale and part of our dual-process that we also use to generate natural hydrogen.
No water required:
100% CO₂ injection efficiency:
Every bit of storage capacity is used for CO₂, maximizing value.
25x lower CAPEX:
No water infrastructure means dramatically reduced capital costs compared to traditional sequestration methods.
Not reliant on pure CO₂:
We can mineralise industrial CO₂ streams without costly purification.
How do we know that CO2 cannot escape?
Every injection site will be monitored in real-time using advanced sensor networks. This enables us to verify permanent CO₂ storage. It also means that our process meets the high standards needed to issue high-quality carbon credits to markets.
Which industries will use CO2 mineralisation?
In the near term, we will source CO₂ from hard-to-abate industries including cement, steel and paper mills. We already have agreements in place with major players keen to be the first to store their carbon with us. As direct air capture (DAC) and other carbon removal technologies scale, we’ll also be able to mineralise CO₂ pulled straight from the atmosphere, helping to close the loop on industrial carbon.