Our technology
25 years of applied research by humans – and 4 billion years by the planet
Nature slowly mineralises atmospheric CO₂, binding it into rocks such as limestone. Paebbl collapses that timescale from centuries to hours. Our proprietary method exposes captured CO₂ to abundant minerals and locks the carbon into a stable, solid form. Whilst nature typically takes centuries to complete this process, our technology achieves the same result in just one hour, an acceleration factor of ten million.
The output of this process is a material that can be refined into a supplementary cementitious material (SCM). Unlike conventional cement manufacturing, which emits a disproportionate amount of CO₂, our process takes CO₂ as an input, fundamentally reversing the environmental impact of construction materials.
Building on academic research
Paebbl is involved in several major research consortia and projects, partnering with leading academic institutions:
European Innovation Council Pathfinder Project (C-SINC): Paebbl is a key partner in a consortium for the "Concrete products through sustainable and innovative carbon-storing binders" (C-SINC) project. This group includes:
Delft University of Technology (TUD): Expertise in concrete modeling and material behavior.
Karlsruhe Institute of Technology (KIT): Focus on machine learning, data-driven mix design, and numerical modeling.
KU Leuven: Expertise in sustainable mineral and metal recovery.
Consejo Superior de Investigaciones Científicas (CSIC): Specializes in advanced material physics and modeling concrete degradation.
European Study Group with Industry (ESGI)
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What is mineralisation?
Under the hood, Paebbl's technology is an aqueous mineral carbonation process. It mimics and massively accelerates a natural geological phenomenon where CO₂ reacts with silicate minerals containing magnesium (Mg) and calcium (Ca) to form solid, stable carbonate minerals.
The famous equation in plain language:
Forsterite + Carbon Dioxide → Magnesite + Silica
The Magnesium component is chemically bound to carbon, permanently storing CO₂ in its structure.
Paebbl’s mineralisation unit operates under high pressure and temperature to accelerate the transformation. Controlling these conditions is key to maximising the CO₂ uptake.
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We scaled up 2500x in under 2 years
Initially, our technology has been run as a batch process, which helped us to optimise our process conditions, and successfully scale up 100x in the first two years of operations.
In March 2025, we announced the next phase of scaling up of our operations, with the successful launch of our Demo plant, which has been operating continuously since then. The project was completed in just 18 months from inception to start up. It is set to become the world’s fastest continuous production facility of its kind.
We are now working on a First-Of-A-Kind (FOAK) commercial plant, designed to operate profitably at a large scale.
Bench scales
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Up to 0.36 t CO₂ / year
Product: > 1t / year (only used for R&D)
Pilot scale
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18-36 t CO₂ / year
Product: > 150t/year
Continuous Demo plant
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0.4 - 0.9 kt CO₂ / year
Product: 1-4 ktpa / year*
Continuous FOAK
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10-20 kt CO₂ / year
Product: 30-100 ktpa / year
In-house research and data-driven acceleration
We have built state-of-the-art R&D facilities, equipped with advanced analytical instruments, and a specialised research team. These in-house capabilities allow us to test, validate, and refine our technology.
Equipped with advanced instrumentation to provide daily R&D and QC support.
Enables data-driven decisions from lab to plant, ensuring reliability at every scale.
Reactor platforms allow translation of findings directly to Pilot, Demo, and FOAK operations.
Research product performance in mortar and concrete applications, delivering market-relevant insights.
Equipped for pre-processing minerals and post-processing product, strengthening both performance testing and innovation capability.
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