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Published byFrances Osbourne Modified over 10 years ago
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Carbon Dioxide Emission: 24 billion tons per year
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CARBON CAPTURE AND STORAGE Carbon capture and storage is mostly used to describe methods for removing CO 2 emissions from large stationary sources, such as electricity generation and some industrial processes, and storing it away from the atmosphere.
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Carbon Capture Technology Post- combustion capture React the flue gas with chemicals that absorb CO 2 and then heat the chemicals to release CO 2. NOTE: Flue gas : Mixture of nitrogen, water vapor and 15 % of Carbon dioxide.
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Carbon Capture Technology Oxy-fuel combustion – Use pure oxygen to support the fossil fuel combustion. The flue gas is then mostly CO 2 and water making it to separate easily.
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Carbon Capture Technology Pre- combustion capture Remove carbon before combustion. By gasifying the coal through the reaction with more oxygen, it is possible to a mix of mostly CO 2 and hydrogen.
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Transportation Many point sources of captured CO 2 would not be close to geological or oceanic storage facilities. In these cases, transportation would be required. The main form of transportation – pipeline. – Shipping
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Carbon Storage technology Geological storage Oceanic storage
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Geological storage
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Oceanic Storage Two storage mechanism has been proposed – Dissolving CO 2 at mid-depth. – Injecting the CO 2 at depths in excess of 3 km, where it would form lakes of liquid CO 2. Bellow 3 km liquid CO 2 would be denser than sea water and would sink to the ocean floor.
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Monitoring Geochemical Monitoring Seismic Monitoring Non-Seismic Monitoring
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What might Carbon Capture and Storage look like? The diagram is from a BP news release from the abandoned Miller project, UK North Sea, which is no longer available online.
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Carbon Storage Concerns CCS technologies actually require a lot of energy to implement and run transporting captured CO 2 by truck or ship, require fuel. Creating a CCS-enabled power plant also requires a lot of money. What happens if the carbon dioxide leaks out underground? We can't really answer this question. Because the process is so new, we don't know its long-term effects. Slow leakage would lead to climate changing. Sudden catastrophic leakage is dangerous, and causes asphyxiation. The more CO 2 an ocean surface absorbs, the more acidic it becomes, higher water acidity adversely affects marine life.
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FutureGen FutureGen is a public-private partnership to build a first-of-its-kind coal-fueled, near-zero emissions power plant. It will use cutting-edge technologies to generate electricity while capturing and permanently storing carbon dioxide deep beneath the earth. The plant will also produce hydrogen and byproducts for possible use by other
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Where are the proposed CCS projects? http://www.geos.ed.ac.uk/sccs/storage/storag eSites.html http://www.geos.ed.ac.uk/sccs/storage/storag eSites.html More links http://network.carboncapturejournal.com/vid eo/2018151:Video:4342 http://network.carboncapturejournal.com/vid eo/2018151:Video:4342 http://www.futuregenalliance.org/about.stm
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