Region: United States

Photo: chalyon021

Vaulted Deep Kansas Injection Site

Hutchinson, Kansas, USA

Buries sludgy organic waste.

Vaulted Deep injects organic waste into durable wells, where the carbon in the waste is sequestered as it decomposes. Using a specialized slurry injection technology, their process can handle a wide range of organic carbon sources with minimal energy and upfront processing. Their system has the potential to be deployed quickly at large scales.
Country: United States
Status: In development
Type: Biomass burial
Links
https://vaulteddeep.com/
Photo: chalyon021

Banyu Carbon

CoMotion Labs at Fluke Hall, University of Washington

Uses sunlight to degas seawater

Banyu uses sunlight to capture CO₂ from seawater. A reusable, light-activated molecule that becomes acidic when exposed to light causes carbon dissolved in seawater to degas as CO₂, which is then stored permanently. Because only a small portion of the visible light spectrum is needed to trigger the reaction, this is a highly energy-efficient approach to direct ocean removal.
Country: United States
Status: Concept
Type: Direct Ocean Capture
Links
https://www.banyucarbon.com
Vycarb

Vycarb

Brooklyn Navy Yard, Brooklyn, NY, USA

Enabling decentralized carbon removal through real-time, autonomous, and direct measurement of CO2 in water.

With multiple pilots deployed on the US east coast, Vycarb’s modular, autonomous system uses a real-time measurement technology and accelerated alkalinity dissolution to optimize CO2 removal to water’s naturally-changing chemical conditions. Designed for deployment across any high-CO2 waters, Vycarb’s system creates the first fully-measured, ecologically beneficial carbon removal and storage that can be distributed around the world.
Country: United States
Status: In development
Type: Ocean Alkalinity Enhancement
Links
www.vy-carb.com
Vesta Field Pilot

Vesta Field Pilot

North Sea Beach, Southampton, NY, USA

Coastline enhanced rock weathering

In July 2022,  the North Sea Beach Colony (NSBC) in Southampton, NY became home to the world’s first field pilot of Coastal Carbon Capture when they incorporated olivine sand into Phase 2 of their beach restoration project. The Town of Southampton, in collaboration with the NSBC, Vesta, and First Coastal, deployed 500 cu yd of olivine sand such that it comprised ~5% of the total sand volume that was placed.
Country: United States
Status: Operational
Type: Enhanced Rock Weathering
Links
https://www.vesta.earth/
Lithos

Lithos

San Francisco, CA, USA

Carbon capture for thriving farms.

Lithos accelerates mineral weathering by spreading basalt on croplands to increase dissolved inorganic carbon with eventual storage as ocean carbonates. Its technology uses novel soil models and machine learning to maximize CO₂ removal while boosting crop growth.
Country: United States
Status: Operational
Type: Enhanced Rock Weathering
Links
Website
Carba Prototype Reactor

Carba Prototype Reactor

WM - Burnsville Sanitary Landfill, Cliff Rd W, Burnsville, MN, USA

Permanently bury nature-based biomass for thousands of years.

Carba specializes in low energy Carbon Dioxide Removal (CDR) solutions with permanent storage. Through low temperature pyrolysis (torrefaction) we convert nature-based biomass/waste into graphitic carbon and permanently bury/store it for thousands of years.
Country: United States
Status: Operational
Type: Biochar
Links
https://www.carba.com/
Arbor Demonstration Facility

Arbor Demonstration Facility

Placer County, CA, USA

Converts wate into clean energy and fresh water

Arbor combines natural carbon drawdown with the permanence and scalability of engineered solutions using an approach called Biomass Carbon Removal and Storage (or BiCRS). Located in Placer County, Arbor’s demonstration facility is modular and is estimated to remove 50k/tons of CO2/year.
Country: United States
Status: In development
Type: Biomass Carbon Removal and Storage
Links
http://arbor.co

Ebb Carbon

Sequim Bay State Park, U.S. 101, Sequim, WA, USA

Enhances ocean’s natural ability to store CO2

Ebb Carbon is pioneering a new carbon removal solution by enhancing the ocean’s natural ability to safely store CO2. Our electrochemical ocean alkalinity enhancement method has the potential to be one of the largest scale and lowest cost approaches to removing excess CO2, while reducing ocean acidity. This first of a kind demonstration project is designed to remove 100 metric tons of CO2 per year at full capacity.
Country: United States
Status: In development
Type: Ocean Alkalinity Enhancement
Links
https://www.ebbcarbon.com/
Carbon Lockdown

Carbon Lockdown

Potomac River, Maryland, USA

Facilitates sustainable carbon sequestration technologies

Country: United States
Status: Operational
Type: Biomass burial
Links
http://carbonlockdown.net

Graphyte

Memphis, Tennessee, USA

Encases biomass preventing decomposition

Combining photosynthesis with practical engineering, Graphyte’s Carbon Casting technology provides an immediate pathway for billions of tons of low-cost, permanent carbon removal. With levelized production costs at under $100/ton with minimal energy requirements, we can remove CO2 for 1,000+ years.
Country: United States
Status: In development
Type: Biomass burial
Links
https://graphyte.com/