CO2leválasztás

CO2leválasztás, also known as carbon dioxide capture, is a set of technologies used to prevent large amounts of carbon dioxide (CO2) from being released into the atmosphere from sources such as industrial facilities and power plants. The primary goal of CO2leválasztás is to mitigate climate change by reducing greenhouse gas emissions.

There are several main approaches to CO2leválasztás. Post-combustion capture involves separating CO2 from the flue gases after fuel has been burned. Pre-combustion capture modifies the fuel before combustion to produce a stream primarily of hydrogen and CO2, which is then separated. Oxy-fuel combustion burns fuel in nearly pure oxygen, resulting in a flue gas that is mostly CO2 and water, making separation easier.

Once captured, the CO2 can be transported, typically via pipelines or ships, to a storage site. Geological sequestration is the most common proposed method, where CO2 is injected deep underground into porous rock formations, such as depleted oil and gas reservoirs or saline aquifers, where it is trapped by overlying impermeable rock layers.

CO2leválasztás is a technology that is still under development and faces challenges related to cost, energy efficiency, and the long-term security of storage. However, it is considered a potentially important tool in the portfolio of strategies to address climate change.