Keywords |
  • Chemistry,
  • Sustainable development,
  • Technology

Post-combustion CO2 separation

The separation of postcombustion CO2 is a technique to capture and sequester CO2http://www.futura-sciences.com/fr/question-reponse/t/automobile/d/transport-et-co2-quelle-part-des-emissions_1017/. The process consists in treating the gaseous effluents after combustion of fuels (coal, oil etc.) in air.

The principle and use of postcombustion separation of CO2

In general, a liquid solvent such as monoethanolamine (MEA) is used to capture the CO2 fraction (3 to 15 % of the dry volume) of combustion gases.

This technique is well understood and is used in some power stations. The postcombustion capture of CO2 is economically viable under certain precise conditions, i.e. with financial incentives (subsidy, carbon tax, etc.).

Diagram showing the various processes to industrially capture CO2 including postcombustion separation (in orange). © Giec 2005 Diagram showing the various processes to industrially capture CO2 including postcombustion separation (in orange). © Giec 2005

Post-combustion CO2 separation - 1 Photo
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