#04 Carbon capture solution (CSS)
This all-in-one carbon capture breakthrough can not only reduce carbon dioxide in the air, but also produce H2 via chemical reactions and decompose calcium carbonate (CaCO3). This can significantly improve the difficulties of cement industry to pursue 2030 SDGs goals. Furthermore, there are potentials for them to reuse their carbon dioxide they emitted into innovative materials.
“This process involves the capture of CO2 by its reaction with an alkaline solution produced on demand, to form solid carbonate products which can be used, for example, as construction materials, thereby keeping carbon dioxide out of the atmosphere,” QUT professor Anthony O’Mullane said.
“This can be done using a simple calcium source in water. To further improve efficiency, we added a low-toxicity, biodegradable chemical called MEA [monoethanolamine] to increase the amount of CO2 drawn out of the atmosphere and into the water.”
“We envision this technology would benefit emission-intensive industries such as the cement industry whose CO2 footprint is 7 to 10 per cent of anthropogenic CO2 emissions due to the initial clinking (heating) step that converts CaCO3 into CaO (lime) with the emission of large amounts of CO2,” O’Mullane said
“By coupling the mineralization process to produce CaCO3 from the emitted CO2 during the clinking step we could create a closed loop system and reduce a significant percentage of the CO2 involved in cement production.”
As the increasing consciousness of ‘‘ sustainability ’’, industries and companies are transforming their strategies and business models in order to accomplish the 2030 SDGs goals. We are confronting environmental challenges, fortunately, exports and entrepreneurs are cooperating together for researching innovative technology and coming up with solutions to build a better living space for us.
Thanks to the hard-working of scientists and engineers, we can move forward so rapidly that we can live comfortable and sustainable life!
Reference : All-in-one solution tackles carbon capture, green hydrogen and building materials