<aside> 💡
Founded in 2020 and based in Brisbane, California, Heirloom Carbon Technologies, Inc. is an environmental services company dedicated to restoring atmospheric balance by permanently removing carbon dioxide.
Their core technology reportedly accelerates natural carbon mineralization from years to fewer than three days. By heating limestone in kilns powered by renewable energy, they extract CO2 and create a mineral "sponge" (calcium hydroxide) that is spread on modular trays to absorb atmospheric carbon. This cyclic process aims to minimize resource consumption while delivering a low-cost, scalable solution.
In the emerging "compliance era" of carbon markets, Heirloom differentiates itself by offering verifiable, permanent removal for over 1,000 years, ensuring high integrity that addresses potential greenwashing concerns. However, scaling to a global infrastructure presents significant hurdles. The company must demonstrate the execution of gigaton-scale production while continuously reducing costs through mass manufacturing of its modular facilities. Furthermore, establishing transparent, international market rules remains a critical step for broader adoption and sustained trust.
We look forward to seeing the company overcome these challenges, exceed its ambitious target of one billion tons by 2035, and become a global leader in restoring the planet’s atmosphere. （AS)
</aside>
In a U.S. First, a Commercial Plant Starts Pulling Carbon From the Air (Published 2023)
Direct Air Capture (DAC)/U.S. Heirloom - Green＆Circular Decabonization Solution｜MITSUI & CO., LTD.
Heirloom Startup Helps Minerals Absorb CO2 In Days Instead Of Years