Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

Table 7

Comparison between various technologies used for CO₂ capture.

Technology	Advantages	Disadvantages	Scale
Absorption	(i) React rapidly; (ii) High absorption capacities; (iii) Very flexible	(i) Equipment corrosion; (ii) High energy required for regenerating solvent	Industrial
Adsorption	(i) Low energy consumption and cost of CO2 capture; (ii) Suitable for separating CO2 from dilute stream	Low adsorption capacities (in flue gases conditions)	Pilot
Cryogenic distillation	(i) Liquid CO2 production; (ii) Not requiring solvents or other components; (iii) Easy scaled-up to industrial-scale application	Require large amount of energy	Pilot
Membrane separation	(i) Clean and simple process; (ii) Continuous, steady-state technology	Require high energy for post-combustion CO2 capture	Experimental