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Project Type: Materials sequestration

Holcim AG X Neustark

Oberdorf, Switzerland

Mineralises demolished concrete, storing carbon along the way.

Mobile storage site of the next generation. Originally stationed in Oberdorf, this plant was built to be moved between various Holcim concrete recycling sites in Switzerland to allow for optimal storage conditions.
Country: Switzerland
Status: Operational
Type: Materials sequestration
Links
https://www.neustark.com/en/about#map
Minus Materials Regenerative Limestone Quarry

Minus Materials Regenerative Limestone Quarry

Boulder, CO, USA

Using algae to generate carbon negative limestone for cement!

With this breakthrough demonstration project Minus Materials will install and operate a first-of-its-kind “regenerative quarry” pilot project in Boulder County that will support the production of carbon-negative biorenewable limestone using microalgae. Limestone produced can be used as a substitute for conventional emissions intensive ‘clinker’, the base component of Portland cement.
Country: United States
Status: In development
Type: Materials sequestration
Links
www.minusmaterials.com
Bair Block

Bair Block

Childersburg, Alabama, USA

World’s first ultra-low carbon concrete mineralizes atmospheric carbon

CarbonBuilt produces the world’s first ultra-low carbon concrete blocks. The new blocks reduce embodied carbon by 70-100+% through cement replacement and by mineralizing atmospheric CO2. They cost no more to produce than traditional concrete. More plants are in development.
Country: United States
Status: Operational
Type: Materials sequestration
Links
https://carbonbuilt.com/
PQR Beton X Neustark

PQR Beton X Neustark

Gland, Switzerland

Mineralises demolished concrete, storing carbon along the way.

Switzerland-based Neustark’s technology permanently stores CO2 from the air in recycled mineral waste such as demolished concrete. This is a storage site that incorporates stationary silo installation with an integrated sealing technology.
Country: Switzerland
Status: Operational
Type: Materials sequestration
Links
https://www.neustark.com/
Paebbl

Paebbl

Sofiankatu 4, 00170 Helsinki, Finland

The re-stored carbon company

A Nordic/Dutch company on a mission to put a lot of CO2 to good use in solid carbonate materials.
Country: Finland
Status: In development
Type: Materials sequestration
Links
http://www.paebbl.com
Photo: chalyon021

Yuanchu Technology

Beijing, China

Aims to permanently sequester carbon dioxide in low energy manners.

Yuanchu’s technology reacts with carbon dioxide in industrial solid waste such as carbide and steel slag to produce carbonate fine particles that can be sold on to indsutry partners enabling carbon capture at profit.
Country: China
Status: In development
Type: Materials sequestration
Links
Website
Photo: chalyon021

Cquestr8

Kuala Lumpur, Malaysia

Reversing ocean acidification and storing carbon in the process

Cquestr8 plans to mineralize carbon dioxide into stable ocean bicarbonate. It has the potential to scale to gigatonnes of carbon dioxide removal annually.
Country: Malaysia
Status: In development
Type: Materials sequestration
Links
Website
CTRL+Z

CTRL+Z

Hyderabad, Telangana, India

Filters water whilst removing carbon.

CTRL+Z converts agricultural wastewater to carbon-rich graphene derivatives that are then used in water filtration. This technology could potentially sequester billions of tonnes of carbon dioxide annually.
Country: India
Status: In development
Type: Materials sequestration
Links
Website
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