Absorber for capturing co2 in ammoniated solution

A system for capturing CO2 from a flue gas stream comprises:

• a CO2 absorber comprising a first absorption stage and a second absorption stage,
• an inlet for forwarding a flue gas stream (FG) to the first absorption stage,
• first contacting means for contacting, in the first absorption stage, the flue gas stream (FG) with a mixture of CO2-lean ammoniated solution and recirculated CO2-enriched ammoniated solution to form a partly cleaned flue gas stream,
• a transfer device for transferring the partly cleaned flue gas stream from the first absorption stage to the second absorption stage,
• second contacting means for contacting, in the second absorption stage, the partly cleaned flue gas stream with the recirculated CO2-enriched ammoniated solution to form a cleaned flue gas stream,
• an outlet for cleaned flue gas stream forwarded from the second absorption stage,
• a device for collecting the mixture of CO2-lean ammoniated solution and recirculated CO2-enriched ammoniated solution after having passed through the first absorption stage to form a collected CO2-enriched ammoniated solution,
• a CO2-enriched solution pipe for passing a first portion of the collected CO2-enriched ammoniated solution for regeneration for removing CO2 from the first portion of the collected CO2-enriched ammoniated solution to form the CO2-lean ammoniated solution,
• a CO2-lean solution pipe for passing the CO2-lean ammoniated solution from regeneration to the first absorption stage, and
• a recirculation pipe for passing a second portion of the collected CO2-enriched ammoniated solution to the second absorption stage to form the recirculated CO2-enriched ammoniated solution.