Carbon capture and storage (CCS) is the fairly recently developed process of pulling carbon dioxide (CO2) out of the air for recycling or storage. Since the Paris climate talks, the planet has been set on moving towards specific emissions targets and CCS has been seen as a major way of transitioning to a low-emissions future.
What is CCS?
Carbon capture and storage is the process by which waste CO2 is captured from large point sources (these may be large fossil fuel or biomass energy facilities, industries with major CO2 emissions, natural gas processing plants, synthetic fuel plants and fossil fuel-based hydrogen production plants), transporting it to a storage site, and then depositing it to an underground geological formation. However, much of the pumping of such CO2 into the ground is done to stimulate further oil harvesting and production, which kind of defeats the purpose of sequestering it. That’s where CarbonCure comes in.
What if we could use such captured CO2 for a better purpose, like manufacturing cement for construction? At present the cement industry accounts for approximately 5% of global CO2 emissions due to the highly energy intensive manufacturing process as well as direct emissions from heating limestone. Any reduction in emissions from the construction industry, however small, will have a significant effect on overall emissions worldwide.
CarbonCure captures CO2 from the emissions of local industrial polluters by gas suppliers across the country. The purified and liquified CO2 is delivered to CarbonCure’s concrete producing partner’s plants and their technology injects the recycled CO2 into wet concrete while it’s being mixed. After it has been injected and mixed, the CO2 is converted into a solid mixture and is permanently captured in the concrete. Therefore, CarbonCure’s customers are able to supply clients with high grade concrete products while simultaneously decreasing CO2 emissions and thus helping to reduce the impacts of climate change.
(source: CarbonCure-Chemistry-Infographic via http://carboncure.com/technology/)