Abstract

In this review article, we are mainly focused on discussion and analysis of techniques reported in patents and studies in the field of CO₂ capture and sequestration from atmospheric air and flue gases with the use of pure Ca(OH)₂ dispersions and Ca(OH)₂-comprising sorbents. The discussed CO₂ capture techniques are classified in terms of the composition of Ca(OH)₂-comprising sorbents. The physicochemical aspects of the carbonation process of Ca(OH)₂ dispersions are discussed and analyzed as well.

Keywords: Calcium hydroxide, carbonation mechanism, carbonation reaction, CO2 capture, hydrogen co-production, patents.