Carbon capture technology
Carbon capture technology Methods and example
Carbon capture is a technology that captures carbon dioxide (CO2) emissions from power plants, industrial processes, and other sources and stores it in a secure location, typically underground. The goal of carbon capture is to reduce the amount of CO2 that is released into the atmosphere, which is a major contributor to climate change.
There are several methods for capturing CO2, including:
Pre-combustion capture: This method involves separating CO2 from fossil fuels before they are burned. For example, coal can be gasified to produce a mixture of hydrogen and CO2. The CO2 can then be separated and captured.
Post-combustion capture: This method involves capturing CO2 from the flue gas that is produced after fossil fuels are burned. The CO2 can be separated from the other gases in the flue gas using chemical solvents or other methods.
Oxyfuel combustion: In this method, fossil fuels are burned in a mixture of oxygen and recycled flue gas, which produces a flue gas that is primarily composed of CO2 and water vapor. The CO2 can then be separated and captured.
Direct air capture: This method involves capturing CO2 directly from the air using specialized machines. The CO2 is then separated and stored.
An example of carbon capture technology in use is the Petra Nova facility in Texas, which is a coal-fired power plant that uses post-combustion capture to capture CO2 emissions. The captured CO2 is then transported to an oil field where it is injected underground to help recover more oil from the field.
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