To develop a methodology for CO2 mineral storage, Carbfix worked closely with iCert to ensure quality and compliance with the ISO 14064-2 standard. The methodology describes the specific requirements to permanently store CO2 via carbon mineralization in basalts and other suitable rocks. The CO2 injected into these rock formations must undergo

1)      solubility trapping, in which the CO2 is immediately trapped in the water, followed by

2)      mineral trapping, in which the CO2 is trapped in solid carbonate minerals that are formed underground.

The methodology including monitoring requirements (MRV) was approved by @DNV and, importantly, allows for alternative approved methodologies to be used for CO2 capture and transport. This means that mineral storage can be applied to CO2 captured at an industrial points source or directly from the atmosphere.

 We are thankful to Guðmundur Sigbergsson at iCert, Climeworks, Rannís Technology Fund, and DNV for contributing to the standardization of high-quality, permanent storage of CO2.

Read more about DAC+S certification methodology validated by DNV here