Use of Solid Acids in Carbonate Based Carbon Capture Systems
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Description
In order to develop a new approach to carbon capture using carbonate brines and solid acids, this research project begins the development of a theoretical basis for solid
acid based capture systems and experimental work to test the validity of the theory. It
appears that solid acids behave like weak acids and are able to increase the concentration
of carbon dioxide above a solution compared to what would be achievable without solid
acids. Experimental work aimed to show that solid acids behave as indicated by theory.
Experiments partially validated the theory through demonstrating desorption of carbon
dioxide from a carbonate brine. The regeneration of the solid acid with the help of a
strong acid was only partially successful due to instability of the solid acid in the
presence of a strong acid. The experimental work used activated.