Pressure Drop, Capacity and Mass Transfer Area Requirements for Post-Combustion Carbon Capture by Solvents

A Lassauce 1 P Alix 1 L Raynal 1 A Royon-Lebeaud 1 Y Haroun 1
1 IFPEN - IFP Energies nouvelles
Abstract : Post-combustion capture processes using amines are considered as one of the preferred options for CO 2 Capture and Storage (CCS). However, the cost of avoided CO 2 is very large and must be reduced. The latter cost is strongly linked with column designs which con-sequently must be optimized. In the present article, hydrodynamics and mass transfer performances of random and structured packings are discussed in terms of pressure drop, capacity and most impor-tantly in terms of mass transfer parameters, in particular in terms of interfacial area which is the most important parameter for CO 2 absorbers design. Comparison of different commercial high effi-ciency packings is discussed from experimental characterization and from CFD simulations and a methodology for future developments is proposed.
Keywords : Pressure drop CO2 capture Post-combustion Solvents Amines CFD simulation Absorbers design
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A Lassauce, P Alix, L Raynal, A Royon-Lebeaud, Y Haroun. Pressure Drop, Capacity and Mass Transfer Area Requirements for Post-Combustion Carbon Capture by Solvents. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2014, 6, 69, pp.1021 - 1034. ⟨10.2516/ogst/2013154⟩. ⟨hal-01085885⟩

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