CARBON DIOXIDE CAPTURE WITH REGENERATION OF SALT

摘要

A process is disclosed. The process comprises (a) producing an acidic solution and an alkaline solution from water and a salt of a base by bipolar membrane electrodialysis, wherein the base is capable of reacting with carbon dioxide to form a carbonate, (b) contacting a source of carbon dioxide with the alkaline solution to produce a carbonate of the base, (c) contacting a substance comprising an alkaline earth metal with the acidic solution to produce a salt of the alkaline earth metal, and (d) reacting the salt of the alkaline earth metal and the carbonate of the base to produce a carbonate of the alkaline earth metal and regenerate the salt of the base. A system for performing the process is also disclosed.