CO2fixeringstrategier

CO2fixeringstrategier, or carbon capture and storage (CCS) strategies, are methods aimed at reducing the amount of carbon dioxide (CO2) in the atmosphere, a primary contributor to climate change. These strategies involve capturing CO2 emissions from industrial processes and power generation, transporting the captured CO2, and then storing it in underground geological formations or using it for other purposes.

One of the primary CCS strategies is post-combustion capture, which involves capturing CO2 from the flue gas of coal-fired power plants. Another approach is pre-combustion capture, which captures CO2 before the fuel is burned, typically in the gasification process. Oxide fuel combustion is a third method, where CO2 is captured during the combustion process.

Once CO2 is captured, it can be transported via pipelines or ships to suitable storage sites. These sites are typically deep underground formations, such as depleted oil and gas reservoirs, unmineable coal seams, or saline aquifers. The stored CO2 is expected to remain trapped for thousands of years, preventing it from entering the atmosphere.

In addition to storage, CO2 can be used for other purposes, such as enhanced oil recovery (EOR), where CO2 is injected into oil reservoirs to increase oil production. CO2 can also be used in the production of synthetic fuels and chemicals, providing a potential revenue stream for CCS projects.

The effectiveness of CO2fixeringstrategier depends on various factors, including the efficiency of capture technologies, the cost of transportation and storage, and the long-term stability of storage sites. Research and development efforts are ongoing to improve the efficiency and reduce the cost of CCS technologies, making them more viable for widespread adoption.