Mineral Carbonation of Biomass Ashes in Relation to Their CO₂ Capture and Storage Potential.

ABSTRACT: Short-term stored, long-term stored, and weathered biomass ashes (BAs) produced from eight biomass varieties were studied to define their composition, mineral carbonation, and CO₂ capture and storage (CCS) potential by a combination of methods. Most of these BAs are highly enriched in alkaline-earth and alkaline oxides, and the minerals responsible for CCS in them include carbonates such as calcite, kalicinite, and fairchildite, and to a lesser extent, butschliite and baylissite. These minerals are a result of reactions between alkaline-earth and alkaline oxyhydroxides in BA and flue CO₂ gas during biomass combustion and atmospheric CO₂ during BA storage and weathering. The mineral composition of the short-term stored, long-term stored, and weathered BAs is

SUBMITTER: Vassilev SV 

PROVIDER: S-EPMC8190880 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature