OCEAN IONICS
Technology

An electrochemical cycle, powered by seawater and renewables.

Three connected processes work together to remove atmospheric CO2, restore ocean alkalinity, and close the cycle on land — without problematic waste streams or exotic materials.

Ocean Ionics — process overview The process spans two domains. In the ocean and atmosphere, restored alkalinity draws atmospheric CO2 across the air-sea interface and stores it as dissolved bicarbonate and carbonate. On land, a facility draws seawater from the ocean and uses renewable electricity for salt conversion, producing an alkaline stream returned to the ocean and an acidic stream that is neutralised on land with abundant alkaline minerals. ATMOSPHERE CO₂ CO₂ CO₂ CO₂ OCEAN Atmospheric CO₂ absorbed across the air-sea interface Alkalinity restored. CO₂ stored durably as stable bicarbonate and carbonate ions. Timescale: centuries to millennia. ALKALINE STREAM returned to the ocean ON LAND · FACILITY Seawater drawn from the ocean Renewable energy Alkaline minerals Salt conversion Electrochemical separation Acid neutralisation Acid neutralised on land ACIDIC Neutral · safe to return
The three technology areas

Each area handles one part of a closed cycle.

01 · SALT CONVERSION

Generate alkalinity from seawater.

Electrochemical separation of dissolved salts. Inputs: seawater, renewable electricity. Outputs: an alkaline stream and an acidic stream.

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02 · CO₂ REMOVAL

Return alkalinity to the ocean.

The alkaline stream increases ocean alkalinity, driving additional CO2 uptake from the atmosphere as stable, dissolved bicarbonate.

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03 · ACID NEUTRALISATION

Neutralise the acid on land.

The acidic stream reacts with abundant alkaline minerals, producing benign by-products and closing the cycle with no waste requiring disposal.

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Ready to discuss commercial deployment?

Project Alkalion, our modular demonstration, takes the technology into the real ocean environment — ahead of Ocean Ionics One, our first commercial plant.

About Project Alkalion Get in touch