Feature Reports

Carbon Capture, Utilization and Storage

Carbon Capture and Storage
Industrial exhaust is made up of many gases including CO2, which has to be isolated before the capture phase. ©THINKSTOCK - XUANHUONGHO

Carbon capture and storage (CCS) technologies are emerging as one of the most closely studied areas in the battle against climate change, thanks to their potential for reducing greenhouse gas (GHG) emissions. However, the road is paved with many technical and financial obstacles. In addition to being stored, CO2 can also be used as a raw material to produce fuels, plastics and chemical products. Together, these techniques are often referred to as carbon capture, utilization and storage (CCUS).

captage du CO2

Close-up

Carbon Capture

Carbon capture and storage (CCS) is a concept that could be applied to industries that emit the most carbon dioxide (CO2See Carbon Dioxid) in facilities such as coal-, gas- and fuel-oil-fired powerIn physics, power is the amount of energy supplied by a system per unit time. In simpler terms, power can be viewed as energy output... plants, steel, petrochemical and cement plants and oil refineries. 

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Carbone transport and storage

Once the carbon dioxide (CO2See Carbon Dioxid) has been captured (see Close-Up:" Carbon Capture"), it must be transported to a permanent storage site then injected below the Earth's surface. Proper precautions need to be taken to ensure that the CO2 remains buried for thousands of years.

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Carbon capture and storage

International experts agree that carbon capture and storage (CCS) is an immensely important mid-to-long-term solution for reducing net greenhouse gas (ghg) Gas with physical properties that cause the Earth's atmosphere to warm up. There are a number of naturally occurring greenhouse gases... (GHG) emissions to zero before 2100. But there is still a long way to go: current volumes treated by CCS need to be 300 times greater if they are to meet the objectives set for 2050.

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Les 3 voies de la valorisation du CO2

The idea behind carbon utilization is that carbon dioxide (CO2See Carbon Dioxid) is a raw material that can be captured from industrial flue gas and then reused in a variety of commercially viable products and processes. It takes a different approach from merely storing CO2 underground, but the two methods are sometimes referred to together in the expression carbon capture, utilization and storage (CCUS).

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How to capture, Store and Utilize CO2

While reducing carbon dioxide (carbon dioxide (co₂)Along with water vapor, carbon dioxide is the primary greenhouse gas (GHG) in the Earth's atmosphere...) emissions is one way to slow down global warmingGlobal warming, also called planetary warming or climate change..., another option consists in capturing, storing and even reusing this gas. However, the technologies used in this process are still far from mature – particularly in terms of cost – and require further research and testing. This video explains, in very simple terms, how CO2See Carbon Dioxid can be isolated, transported and stored in deep geological formations. It can also be used to produce fuels, plastics, cement and chemical products. Together, these techniques are often referred to as carbon capture, utilization and storage (CCUS).

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