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US firm to trap ship engine CO2 emissions into sea salt for 100,000 years | The new reactor could help drastically reduce shipping CO2 emissions and help the industry meet its 2050 net-zero target.
Calcarea, a Caltech and USC spinoff startup, has developed a new reactor that can turn CO2 into harmless salts for safe release into the sea.
As a result of this mixture, the CO2 in the exhaust fumes interacts with the combination, producing saline water that traps the CO2 in the form of bicarbonate salts. He also mentioned that the company is exploring the addition of a pre-filter to the system to remove other pollutants from the exhaust that could mix into the water, such as particulates, unburnt fuel, and other contaminants. “Purpose-built ships that pick up CO2 and limestone at a port, go out to sea and just run our reaction — they will be solely machines to efficiently and safely store carbon in the ocean as bicarbonate,” Adkins explained.
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