CO₂ capture, geological storage, and mineralization using biobased biodegradable chelating agents and seawater.

ABSTRACT: Geological storage and mineralization of CO₂ in mafic/ultramafic reservoirs faces challenges including limited effective porosity, permeability, and rock reactivity; difficulties in using seawater for CO₂ capture; and uncontrolled carbonation. This study introduces a CO₂ capture, storage, and mineralization approach with the utilization of biobased biodegradable chelating agents and seawater. An acidic chelating agent solution is used to increase effective porosity and permeability through enhanced mineral dissolution. For instance, applying an acidic N,N-Bis(carboxymethyl)-L-glutamate solution to a porous basalt increased effective porosity by 16% and permeability by 26-fold in 120 hours. Subsequently, alkaline chelating agent-containi

SUBMITTER: Wang J 

PROVIDER: S-EPMC11566992 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature