Travertine commercializes the Travertine Process, which combines salt-splitting electrolysis, caustic direct air capture, and mineralization to convert waste gypsum and atmospheric CO2 into sulfuric acid, green hydrogen, and calcium carbonate (permanent carbon storage). The company is building a demonstration plant at Sabin Metal's main facility outside Rochester/Scottsville, New York, with engineering underway and commissioning expected in mid-2025. The demo is sized to upcycle hundreds of tons per year of gypsum, remove tens of tons of CO2 annually, and supply roughly 50% of Sabin Metal’s annual sulfuric acid needs; future expansion could supply green hydrogen for industrial heat. Travertine says the process can decouple critical element extraction and refining from fossil-derived sulfur and is applicable to lithium, nickel, phosphorus, and cement production. The company is headquartered in Boulder, Colorado and is led by founder and CEO Laura Lammers, PhD. Travertine’s core technology upcycles industrial sulfate waste and CO2 captured directly from the air into sulfuric acid and carbonate advanced cement components that permanently sequester CO2. The produced sulfuric acid is used to extract phosphorus, lithium, nickel, and other critical elements from ores, while eliminating sulfate wastes from conventional extractive processes. The company has demonstrated its process by upcycling sulfate waste from major fertilizer and mining companies in a fully integrated, continuous-flow pilot. Travertine is currently focused on engineering and scale-up for a first commercial demonstration plant. The company plans to use recent funding to expand operations and further its development efforts. Travertine spun out of Laura Lammers’ lab at the University of California, Berkeley in 2022 and is based in Boulder, Colorado. Travertine Technologies develops a novel, cost-effective process to capture and permanently sequester ambient CO2 while producing sulfuric acid. The company aims to enable carbon-negative critical element extraction and fertilizer production through its co-produced sulfuric acid. It is building a pathway to pilot-scale implementation in 2023. The $3M seed investment will be used to scale up the team in Boulder, CO and accelerate that pilot pathway. Travertine was founded by Prof. Laura Lammers and describes its ambition as a gigaton-scale carbon dioxide removal solution. The firm combines CDR with industrial chemical production to address both emissions and raw-material needs.

Total raised

$22M

Funding rounds

4

Latest round

Grant

Latest activity

Oct 2024