Ocean Carbon Capture Breakthrough: Ship-Based System Processes 100 Tons of Seawater Per Hour
Running Tide demonstrates its second-generation ship-based ocean carbon capture system, with each unit processing 100 tons of seawater per hour and sequestering 0.5 tons of CO2.
Ocean carbon capture startup Running Tide demonstrated its second-generation ship-based carbon capture system in Reykjavik, Iceland on January 19. The new system processes 100 tons of seawater per hour, converting dissolved CO2 into stable carbonate minerals through alkalization reactions.
Running Tide CEO Marty Odlin stated the second-generation system is 8 times more efficient than the first, reducing per-ton CO2 capture costs from $600 to approximately $120. The company plans to deploy 20 units in 2028, achieving approximately 90,000 tons of annual carbon capture capacity.
The technology works by adding olivine and other minerals to seawater, accelerating natural alkalization. Alkalized seawater absorbs more atmospheric CO2 and converts it to carbonate deposits on the ocean floor. Running Tide has secured carbon removal purchase agreements from Frontier Climate.
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