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An up-to-date review of CO 2 capture technologies for coal-fired power plants is presented. This study is based on EDF experience on CO 2 capture build through collaborative projects and pilot plants operation follow up. This review focuses mostly on most mature technologies and provides insight on the interest of least developed technology with high potential. Technologies are compared and assessed based on energy performance, maturity and economic criteria. A specific method for assessing uncertainties in this process is proposed. Amine based post-combustion technology remains the best reference for short and medium terms with a tight competition with cryogenic oxy-combustion. Both share the highest maturity and similar energy performance in their most advanced embodiments. At the moment IGGC based capture looks less promising for power generation due to the high cost of the plant even without CO 2 capture. Regarding more innovative technology, promising candidates, such as inertial extraction, chemical looping combustion or oxy-fired CO 2 cycle, are highlighted but their effective development up to industrial ground is not guaranteed due to the constant improvement of reference technology and their difficulty to be retrofitted.

12th International Conference on Greenhouse Gas Control Technologies (GHGT), Austin, TX, OCT 05-09, 2014; International audience; CO2 capture is recognized as necessary to achieve significant greenhouse gas emission reduction before 2050. Regarding these technologies, the main issue is the high cost of avoided CO2 related to capture (approximate to 40 (sic)/t). In conventional amine-based CO2 capture process, the four main key parameters driving the cost of avoided CO2 are the regeneration duty, the compression works, the compressor cost and the solvent make-up cost. On the one hand, the use of hollow fibre membrane contactor (HFMC) for CO2 capture is foreseen to be an efficient technology for absorber intensification; but regarding the impact of the absorber cost on the cost of avoided CO2, the use of HFMC for process intensification does not seem relevant. On the other hand, ammonia as solvent for CO2 capture is a cheap solvent with no degradation problem. Moreover, it allows a high pressure regeneration reducing the compression works. The key idea of this work is to find a membrane with high CO2/NH3 selectivity and high permeability in order to use aqueous ammonia as a solvent in a HFMC in order to reduce significantly the ammonia slip in flue gases while maintaining high absorption rate. The work has been divided in three main steps: the screening of available material for the membrane, the laboratory test of the membrane and the modelling of the system for process assessment. For this absorption device a total equivalent work of 240 kWh/ t(CO2) has been calculated for CO2 capture on a coal-fired power plant.