Heat requirement of CO2 absorption by aqueous ammonia
Conference contribution, 2011

Aqueous ammonia has lately emerged as a promising absorbent of CO2 in post-combustion capture applications, often referred to as the chilled ammonia process (CAP). The heat required for regeneration, i.e. the reboiler duty (kJ/kg CO2), is a crucial parameter for all absorbents. For the CAP, the required reboiler duty presented in literature ranges from 1,500 to 4,200 kJ/kg CO2 [1-6]. This is a wide range with crucial consequences for the feasibility of the process. The aim of this work is to review the different sources in order to explain the large difference in heat requirement.

CO2 Capture

Heat of reaction

Aqueous Ammonia

Author

Henrik Jilvero

Chalmers, Energy and Environment, Energy Technology

Fredrik Normann

Chalmers, Energy and Environment, Energy Technology

Klas Andersson

Chalmers, Energy and Environment, Energy Technology

Filip Johnsson

Chalmers, Energy and Environment, Energy Technology

1st Post Combustion Capture Conference

Subject Categories

Energy Engineering

Areas of Advance

Energy

More information

Created

10/7/2017