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Danielle Rapson
Co-founder and COO of Mantle, a startup developing a molten-borate, high-temperature point-source carbon capture system for hard-to-abate industrial sectors.
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Oct 1, 2025
• 40min
Scaling Carbon Capture for Hard-to-abate sectors: Danielle Rapson of Mantel
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Danielle Rapson, Co-founder and COO of Mantle, shares her journey from HBS to pioneering innovative molten-borate carbon capture technology. She explains how Mantle's approach stands out from traditional methods, particularly its efficiency through high-temperature steam reuse. Danielle discusses their projects in the pulp and paper and oil refining sectors, highlighting the impact of policy incentives like 45Q and Canada’s carbon tax. She also delves into the challenges of scaling carbon capture solutions and the growing interest from industries, particularly oil and gas.
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