Carbon Capture Technology

7/29/2019 Carbon Capture Technology

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http://www.geos.ed.ac.uk/sccs/public/teachers/CCS-III-full.jpg


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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 CO2 emissionsfrom 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 captureReact the flue gas with chemicals that absorb CO2 and then heat the

chemicals to release CO2.

NOTE:Flue gas : Mixture of nitrogen , water vapor and 15 % of Carbon dioxide
http://www.co2captureproject.com/


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Oxy-fuel combustion Use pure oxygen to support the fossil fuel combustion. The flue gas is

then mostly CO2 and water making it to separate easily.


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Pre- combustion captureRemove carbon before combustion. By gasifying the coal through the

reaction with more oxygen, it is possible to a mix of mostly CO2

and

hydrogen.


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Transportation

Many point sources of captured CO2 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 CO2 at mid-depth.

Injecting the CO2 at depths in excess of 3 km , where it

would form lakes of liquid CO2 . Bellow 3 km liquid CO2

would be denser than sea water and would sink tothe 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 toimplement and run

transporting captured CO2 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, wedon't know its long-term effects. Slow leakage would lead to climate changing. Sudden catastrophic

leakage is dangerous, and causes asphyxiation.

The more CO2 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

More links

http://network.carboncapturejournal.com/vid

eo/2018151:Video:4342

http://www.futuregenalliance.org/about.stm
http://www.geos.ed.ac.uk/sccs/storage/storageSites.htmlhttp://www.geos.ed.ac.uk/sccs/storage/storageSites.htmlhttp://network.carboncapturejournal.com/video/2018151:Video:4342http://network.carboncapturejournal.com/video/2018151:Video:4342http://www.futuregenalliance.org/about.stmhttp://www.futuregenalliance.org/about.stmhttp://network.carboncapturejournal.com/video/2018151:Video:4342http://network.carboncapturejournal.com/video/2018151:Video:4342http://www.geos.ed.ac.uk/sccs/storage/storageSites.htmlhttp://www.geos.ed.ac.uk/sccs/storage/storageSites.html

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Carbon Capture Technology