Patent ID: RE45309

Claim:
A method of capturing and sequestering carbon dioxide, comprising: mixing a substantially non-aqueous solvent and an alkali such that the solvent and alkali form a solvent suspension; mixing water and a flue gas containing carbon dioxide with the solvent suspension in a reaction vessel such that a reaction occurs, the reaction resulting in the rapid formation of a solid dry carbonate, water and heat, the resulting water forming a solution with the solvent, the resulting carbonate being essentially free of organo-metallic products and substantially non-aqueous a metallic salt and being one or more of the carbonates of the group consisting of: ammonium carbonate, lithium carbonate, magnesium carbonate, potassium carbonate, sodium carbonate, or calcium carbonate ; the resulting carbonate precipitating out of solution , requiring no further chemical processing steps without carrying water , falling toward the bottom of the reaction vessel, and accumulating at the bottom of the reaction vessel together with some substantially non-aqueous solvent ; removing the resulting carbonate from the reaction vessel without any water leaving the reaction vessel at the same location; and evaporating with low-grade heat any remaining non-aqueous solvent .