Mantel Capture is developing molten-borate (molten-salt) high-temperature carbon capture systems designed for boilers, kilns and furnaces in heavy industry. Its technology captures CO2 at the emission source using molten borates, recovering high-grade heat during capture to offset regeneration energy. Mantel says this enables capture costs more than half lower than conventional amine-based carbon capture technologies. The company demonstrated lab-scale capture of about 0.5 tonnes per day and plans a demonstration project rated to capture roughly 1,800 tonnes of CO2 per year. The $30 million Series A will fund the industrial demonstration and support design and preparation for full-scale commercial deployment. Mantel targets hard-to-abate sectors such as cement, steel, chemicals and natural gas power plants. Mantel develops a high-temperature, liquid-phase carbon-capture system designed to operate inside boilers, kilns, and furnaces. The technology targets hard-to-abate industries such as industrial heat, cement, steel, and hydrogen, and can pair with biogenic sources for carbon dioxide removal. Mantel was spun out of MIT after research with Professors T. Alan Hatton and Takuya Harada. The company says the new funding will accelerate technology development, prototype testing, and initial deployment. After achieving a lab-scale flow loop demonstration, Mantel plans to use fresh capital to build a commercial-scale demonstration plant. Mantel was founded in 2022 by Cameron Halliday (CEO), Danielle Colson (COO), and Sean Robertson (CTO).

Total raised

$32M

Funding rounds

2

Latest round

Series A

Latest activity

Sep 2024