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Emission Control Methods
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Figure: Schematic diagram of a CO2 capture pilot plant for coal-based power plant
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(Figure 38.1) |
- CO2 is separated by means of absorption using mono-ethanol amine (MEA).
- The plant consists of three parts
- Absorber,
- Regenerator,
- Exchanger.
- Exhaust gas is cooled to to 40-50°C and fed to the absorption tower.
- In the absorber, exhaust gas is mixed with mono-ethanol amine (MEA), which captures 90% of CO2 in the exhaust gas.
- Amine stripper is used in the regenerator, which separates MEA and sends back to amine absorption tower. This plant captures 1 million CO2 per hour.
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