Carbon capture specialist Heirloom has opened what it says is the US’ first commercial-scale direct air capture (DAC) facility, capable of capturing up to 1,000 tonnes of carbon dioxide (CO2) per year, in Tracy, California.
Fully powered by renewable energy, the plant will capture atmospheric CO2 and permanently sequester it in concrete through a partnership with CarbonCure Technologies.
Heirloom uses limestone to pull CO2 from the air. Using a cyclic process, the limestone is broken down into calcium oxide rock and CO2 gas using heat from a renewable energy-powered electric kiln.
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