We track the progress of a carbon removal project through our certification framework. This roadmap moves from a preliminary assessment of eligibility toward full certification under the Puro Standard.
The facility has successfully completed the preliminary assessment conducted by the Puro team, meeting the minimum criteria for listing as a future supplier on Puro.earth.
The facility has passed the third-party facility audit, verifying compliance with the methodology, as well as output audit, verifying the net volume of removed carbon. The facility has been issued CORCs and continues its removal operations, as well as monitoring and reporting to Puro.earth.
Development status
We monitor a facility’s maturity as it moves toward industrial-scale operations. This status identifies whether a project is in development, under construction, or actively removing carbon from the atmosphere.
The feasibility study is ongoing. The Supplier is still collecting data to prove the concept.
The front-end engineering and design are ready and methodology compliant. There is a clear plan to monitor and measure. The LCA is up to the needed quality level or subject to small improvements. The technology has been used before. There are commercial agreements with the relevant business partners of the facility.
The facility is fully funded and is being implemented. Relevant infrastructure is being built.
The facility is operating as a carbon removal facility.
information
More about Leeds Production Facility
Leeds Carbon Mineralization. Converting CO₂ emissions into solid building materials through accelerated carbonation. The Leeds project operated by O.C.O Technology Limited is a key component of their carbon capture and utilization initiatives, focusing on the production of carbonated building materials for sustainable construction applications. Located at Hub 45, 37 Knowsthorpe Gate, Leeds, UK LS9 0NP, the Leeds facility plays a pivotal role in converting CO₂ emissions into solid building materials through accelerated carbonation technology.
At the Leeds facility, CO₂ is used to treat various waste materials via Accelerated Carbonation Technology (ACT). This process involves reacting CO₂ with alkali earth hydroxides and silicates to produce lightweight carbonated aggregate suitable for construction purposes. The aggregate meets EN13242 and EN13055 requirements, ensuring high-quality and environmentally friendly construction materials.
The manufacturing process at the Leeds project includes blending different thermal residues, conditioning them with water, and exposing them to an elevated concentration of CO₂ to accelerate the carbonation process. This results in the production of carbonated aggregate with a verified carbon content of 144 kg of CO₂ per tonne of aggregate product. Compliance assessments, permits, and verification activities are conducted in alignment with the Puro Standard General Rules and Carbonated Building Material Methodology to uphold environmental standards.
The Leeds project exemplifies O.C.O Technology Limited's dedication to sustainable carbon removal practices and innovative solutions for carbon capture and utilization. By converting CO₂ emissions into valuable building materials, the Leeds facility contributes to reducing carbon footprints in the construction industry and advancing the transition towards a more sustainable and environmentally conscious future.
Utilising waste materials in the formation of the limestone aggregate reduces the volume of waste consigned to landfill, and thereby avoids the adverse environmental impacts associated with landfill operations.
Creating an artificial limestone reduces the need for the quarrying of virgin materials, thereby reducing the environmental impacts from quarry operations.
O.C.O utilises biogenic waste CO2, produced from the anaerobic digestion of energy crops. This CO2 would otherwise be released to atmosphere.
sdgs
Sustainable development goals
Only listed sustainable development goals (SDGs) have been assessed according to the Puro standard SDG Assessment Requirements and validated and verified by a VVB.
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