There are several ways to create carbon capture systems:
- Pre-combustion capture: This involves separating carbon dioxide from fossil fuels before they are burned. This can be done by converting the fuel into a gas or liquid, and then using chemical reactions or adsorption processes to remove the carbon dioxide.
- Post-combustion capture: This involves capturing carbon dioxide from the exhaust gases produced after fossil fuels are burned. This can be done through various chemical reactions or adsorption processes, such as amine scrubbing or solid sorbents.
- Oxy-fuel combustion: In this process, fossil fuels are burned in a mixture of oxygen and recycled flue gases, resulting in a stream of concentrated carbon dioxide that can be easily captured.
- Carbon capture and storage (CCS): This involves capturing carbon dioxide from power plants or industrial processes and injecting it into underground geological formations, such as oil and gas reservoirs or saline aquifers, for long-term storage.
- Carbon capture and utilization (CCU): This involves capturing carbon dioxide and using it as a feedstock for producing chemicals, fuels, or other products.