Calcarea Inc. and Aurelia Design BV have entered into a collaboration to bring ocean-based carbon capture technology to the maritime sector. The partnership combines Calcarea’s carbon removal process with Aurelia’s expertise in green ship design and e-systems integration.
At the heart of the collaboration is Calcarea’s limestone weathering technology — a system that accelerates a natural process where carbon dioxide (CO2) reacts with limestone and seawater, transforming it into stable bicarbonates safely stored in the ocean. The approach offers a nature-based, permanent, and infrastructure-light solution to CO2 capture and sequestration, ideal for maritime applications where seawater is readily available and continuously circulated.
Also read: Aurelia and Ocean Cleanup explore sustainable propulsion tech
Bulk carrier design
Working together, the two companies will develop a next-generation bulk carrier, fully integrating the Calcarea reactor and supporting systems into the vessel architecture. Aurelia will lead the naval architecture, system integration, and class compliance engineering, ensuring the technology can operate efficiently and safely in real ship conditions without effecting cargo capacity.
The study includes analysis of seawater flow dynamics, intake and discharge configurations, and hull shape, to maintain performance while minimizing fuel impact. The design will serve as the foundation for a scalable and class-ready newbuild platform.
Also read: How Aurelia wants to cut emissions of Carisbrooke’s Vectis Pride
Making tech ready for industry adoption
‘We see shipping as one of the most natural environments for large-scale carbon removal,’ says Pierre Forin, Co-founder and CTO of Calcarea. ‘Ships operate surrounded by seawater — the very medium our process uses. Partnering with Aurelia allows us to bridge science and engineering, and turn our technology into a deployable maritime system.’
‘What makes this collaboration exciting is that it’s not just another retrofit — it’s a new generation of clean ship design built around a truly regenerative technology,’ states Raffaele Frontera, Founder and CEO of Aurelia. ‘Calcarea brings a breakthrough CO2 capture process, and Aurelia brings the design and system expertise to make it practical, class-compliant, and ready for industry adoption.’
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Toward AiP
The Phase 0 Feasibility and Concept Study is now underway and will be followed by further engineering and validation phases as the technology advances toward approval in principle (AiP) and demonstration.
