We are experts in the application of Accelerated Carbonation Technology (ACT) for carbon capture.

ACT is a genuine Carbon Capture and utilisation (CCU) process. Carbon dioxide is permanently captured as stable carbonate minerals.

Very little energy is required for the process, which relies upon the reactivity of the waste material. Many wastes are naturally reactive with carbon dioxide in the presence of water. If the conditions are carefully controlled, this natural reaction can be accelerated, taking place in minutes rather than years and resulting in the formation of calcium carbonate (manufactured limestone).

Water acts as a solvent, allowing CO₂ and calcium ions to readily react. The reaction forms a solid carbonate precipitate.

1000
Reactive
Waste
+
4000
Water
+
4000
Carbon
Dioxide
4000
Calcium
Carbonate

ACT has been demonstrated utilising a variety of gas sources. O.C.O is actively developing direct-from-flue-gas capture.

ACT is an effective process to treat and stabilise waste. See our Waste Treatment page.

ACT can also valorise wastes into sustainable products such as our carbon negative M-LS aggregate. See our Sustainable Construction Products.

O.C.O News
O.C.O secures enhanced range of materials for carbon capture

O.C.O has received Permit variations from the Environment Agency for each of our three operational aggregate manufacturing facilities in Avonmouth, Leeds and Brandon, Suffolk.  The formal variations now list a much wider range of residual and industrial materials for processing by our Accelerated Carbonation Technology (ACT), allowing O.C.O to extend our recycling and carbon capture […]

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O.C.O successfully transitions to ISO 45001

As part of our drive to continually improve our processes and procedures, O.C.O have recently successfully transitioned to ISO 45001. Already accredited to ISO 9001 for quality, ISO 14001 for quality and OHSAS 18001 for Health & Safety, we underwent a serious of rigorous audits across the three sites in November and December and received […]

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O.C.O Technology presents at international technical webinar

Dr. Peter Gunning, Technical and Quality Manager for O.C.O, recently presented at a prestigious international webinar on ‘Valorisation of fly ash from Waste to Energy’. Peter is a recognised authority on the topic and used the webinar to showcase the O.C.O expertise in creating carbon negative aggregate materials from residual materials. The webinar was organised […]

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O.C.O welcomes Justin Thorner

We are pleased to announce that Justin Thorner MIAT MIOQ has joined us as Territory Sales Manager for the South West region. Justin will be responsible for maintaining and strengthening existing customer relations in the area as well as developing new customers and products alongside the rest of the aggregates sales team. Justin started in […]

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O.C.O Technology

Built on more than 20 years of award-winning research, Accelerated Carbonation Technology has helped make us a world leader in the permanent capture of carbon dioxide.

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