Publication

Séquestration du CO2: remettre le carbone à sa place

Lyesse Laloui
2020
Media

Abstract

Le climat mondial se réchauffe sous l’influence des émissions de carbone fossile que l’activité humaine injecte dans l’atmosphère. La technologie de captage et de séquestration de CO2, qui permettrait en quelque sorte de le remettre à sa place dans le cycle du carbone, représente une piste intéressante pour contribuer à atteindre les objectifs climatiques des États, notamment pour assurer la transition du nucléaire au renouvelable sans péjorer davantage le climat.

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Lyesse Laloui
2020
Media

Abstract

Official source

Related concepts (9)

Carbon sequestration

Carbon sequestration (or carbon storage) is the process of storing carbon in a carbon pool. Carbon sequestration is a naturally occurring process but it can also be enhanced or achieved with technology, for example within carbon capture and storage projects. There are two main types of carbon sequestration: geologic and biologic (also called biosequestration). Carbon dioxide (CO2) is naturally captured from the atmosphere through biological, chemical, and physical processes.

Carbon dioxide

Carbon dioxide (chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature, and as the source of available carbon in the carbon cycle, atmospheric is the primary carbon source for life on Earth. In the air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater.

Carbon capture and storage

Carbon capture and storage (CCS) is a process in which a relatively pure stream of carbon dioxide (CO2) from industrial sources is separated, treated and transported to a long-term storage location. For example, the carbon dioxide stream that is to be captured can result from burning fossil fuels or biomass. Usually the CO2 is captured from large point sources, such as a chemical plant or biomass plant, and then stored in an underground geological formation. The aim is to reduce greenhouse gas emissions and thus mitigate climate change.

Related publications (1)

Sé­ques­tra­tion du CO2: re­mettre le car­bone à sa place

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Séquestration du CO2: remettre le carbone à sa place