Blue Planet’s technology uses CO₂ as a raw material to make carbonate rocks, replacing natural limestone rock, the principal component of concrete.

Carbon dioxide from industrial flue gas is converted to carbonate by combining CO2-containing gas with a water-based capture solution, thereby avoiding costly purification methods involved in other carbon capture methods. The carbonated solutions formed are then applied to coat particles and form limestone building materials, comparable to the natural formation of limestone in the ocean. Materials sold by the company include aggregates, sack concrete, and roofing granules.

This solution was featured in Upcycling Carbon market of the 2018 Global Opportunity Report, and was selected based on the criteria of that report. 

How the Global Goals are addressed

Industry, innovation and infrastructure

Converting industrial waste CO₂ gas into building materials improves the resource efficiency of both industries and reduces the CO₂ emissions per unit of value added.

Responsible consumption and production

Blue Planet utilises the waste streams from industry to create a new product, helping to make both production and consumption more responsible.

Climate action

The production of concrete is estimated to be responsible for around 5% of global greenhouse gas emissions. Blue Planet’s technology can help to reduce this total.

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