Turning seawater into permanent carbon storage
Minerali builds systems that bolt onto existing water infrastructure and turn seawater into a solid mineral that stores CO₂ forever.
The ocean already holds the solution. Minerali pumps seawater or desalination brine through a tank where our technology, developed at MIT, produces a high-purity mineral that we capture out of the water itself.
This mineral then naturally reacts with CO₂, locking it into a solid carbonate rock. Unlike stored gas, a solid can be weighed, measured, and left alone permanently, without the need for complex storage processes. Because the system attaches to existing water infrastructure, it can deploy and scale efficiently.
How it works
Seawater or brine in
Pumped through a modular flow-through tank.
Mineral formation
Our process forms a high-purity mineral from the water itself.
CO₂ locked in
The mineral binds CO₂ as a stable, permanent solid carbonate.
Where we stand
Process validated in the MIT laboratory.
Consistent yield from real ocean water in a field test at Nahant.
CO₂ capture quantified by laboratory analysis of the carbonated product.
NextAn extended continuous pilot at the Gloucester Marine Genomics Institute.
Team
Maxwell Seidel
Co-founder & CEO
Princeton-trained civil and environmental engineer, leading Minerali from MIT research to pilot-scale deployment on the Massachusetts coast.
Meet the full teamLatest
- 2026 · in progressPrototype build under way at the New Bedford Research & Robotics facility.
- 2025Flow-through field testing completed at the Northeastern Marine Science Center, Nahant.