REDUCED REAGENT REGENERATION ENERGY FOR CARBON DIOXIDE CAPTURE WITH BIPOLAR MEMBRANE ELECTRODIALYSIS, SYSTEMS AND RELATED METHODS

摘要

A system and process for the capture of carbon dioxide from a gaseous feedstock, regenerating carbon dioxide in a purified form, and regenerating reagents, wherein the reagent regeneration having reduced energy consumption in relation to carbon dioxide capture. Carbon dioxide captured by a slurry scrubbing solution producing a resultant product that can be reacted with an acid reagent to form the regenerated carbon dioxide and a resultant salt solution. Electrodialysis with bipolar membrane separation employed on the resultant salt solution to form regenerated acid and regenerated base. The regenerated base recirculated, as the scrubbing solution to capture additional carbon dioxide, and the regenerated acid recirculated for additional acid reaction with additional resultant product, such that the system and process can continuously capture and form regenerated carbon dioxide in a purified form compared to the carbon dioxide of the gaseous feedstock.