Carbon capture and storage (CCS) is an essential technology to reduce fossil fuel-related CO2 emissions from entering the atmosphere. CCS works by collecting CO2 from point sources like power generation or industrial plants using fossil fuels such as cement or steel production facilities.
Transported and permanently stored underground in geological formations like depleted oil and gas reservoirs or deep saline aquifers.
Capture
CCS captures carbon dioxide emissions from power plants or other industrial sources that use fossil fuels, and then stores it deep underground in geological formations. CCS can help lower the carbon footprint of industries like cement, steel and energy intensive manufacturing by capturing and storing process emissions.
Once captured, CO2 is compressed into liquid form before being transported via thick carbon steel pipelines or ships specialized for this task directly to its storage site. There, it is injected into suitable geological formations such as depleted oil and gas reservoirs or saline aquifers where structural trapping mechanisms (see diagram) capture it permanently for long-term storage within its geological reservoir – leaving us free from pollution for millions or billions of years ahead!
Compression
CCS (Carbon Capture and Storage) is an effective carbon dioxide emission reduction technology used by power plants and other industrial processes, helping nations meet their climate change mitigation obligations.
To do this, the system separates carbon dioxide (CO2) from flue gases emitted by fossil fuel powerplants or industrial facilities and then transports the gas underground storage sites. This process uses significant energy, as it compresses CO2 into dense form called supercritical carbon dioxide (SCCO2).
SCCO2 is then transported by pipelines to its intended storage or industrial feedstock destination, or used as industrial feedstock. When sequestrated permanently underground in geological formations such as depleted oil and gas reservoirs or coalbeds and saline aquifers that have been assessed to ensure it will permanently trap CO2. Furthermore, it undergoes continuous monitoring and verification checks to make sure none has leaked back into the environment.
Transport
Transport is one of the sectors where innovative carbon capture technologies are being researched and developed, which could be utilized either with traditional transportation methods such as road vehicles, or with zero emission technologies such as electric vehicles.
Once captured CO2 is ready to be sent out for transport, it must first be compressed into liquid form before being delivered via pipeline or ship. Unitary shipping costs vary with distance (Oeuvray et al. 2024).
CO2 is then injected into deep geological formations for permanent storage, typically depleted oil and gas reservoirs, saline aquifers or unmineable coal seams.
Carbon Capture and Storage (CCS) is an essential tool in our effort to meet climate change targets, yet its deployment requires significant expenses and capital expenditure. As this technology requires large scale deployment, it’s vital that we understand its role within overall energy transition plans; moreover, most CCS projects worldwide are built purely to facilitate continued fossil fuel production without significantly decreasing emissions.
Storage
Carbon Capture and Storage (CCS) is an environmental technology which prevents carbon dioxide from entering the atmosphere by collecting it at power plants and other industrial facilities before its release, then permanently storing it deep underground. CCS is widely recognized by global climate targets as essential.
CO2 captured from fossil fuel power plants and other sources is compressed before being transported by pipeline, rail or ship to its storage site. Storage sites could include depleted oil and gas reservoirs, unmineable coal formations or deep saline aquifers – with close monitoring to ensure the stored CO2 remains safely contained within these geologic reservoirs or formations.
Commercial-scale carbon capture and storage (CCUS) projects have already started in both the United States and worldwide, including Norway’s Sleipner CO2 Storage Site offshore Norway and Saskatchewan Canada’s Weyburn-Midale CO2 Storage Project. Such projects demonstrate it is possible to capture and store CO2 on an industrial scale – an essential step toward meeting climate targets through deployment of more CCUS technologies.