Electrolytic Sulfuric Acid Production with Carbon Mineralization for Permanent Carbon Dioxide Removal.

ABSTRACT: Several billion metric tons per year of durable carbon dioxide removal (CDR) will be needed by mid-century to prevent catastrophic climate warming, and many new approaches must be rapidly scaled to ensure this target is met. Geologically permanent sequestration of carbon dioxide (CO₂) in carbonate minerals-carbon mineralization-requires two moles of alkalinity and one mole of a CO₂-reactive metal such as calcium or magnesium per mole of CO₂ captured. Chemical weathering of geological materials can supply both ingredients, but weathering reactions must be accelerated to achieve targets for durable CDR. Here, a scalable CDR and mineralization process is reported in which water electrolysis is used to produce sulfuric acid for accelerated weathering, while a b

SUBMITTER: Lammers LN 

PROVIDER: S-EPMC10052359 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature