A comparative review between amines and ammonia as sorptive media for post-combustion CO2 capture

Efficiency improvements for the coal-fired power plant retrofit with CO 2 capture plant using chilled ammonia process

“…The main advantages of NH 3 over amine-based solvents have been recently reviewed by Shakerian et al [29] and are: commercial availability at lower price; higher CO 2 absorption capacity compared to the MEA solution of the same concentration; lower heat of reaction resulting in lower heat requirement for solvent regeneration; projected efficiency penalty as low as 4.1-7.0% points [30][31][32], which is yet to be substantiated experimentally [33], though efficiency penalty has been determined to be between 8.5% and 11.6% points [5]; no solvent degradation on contact with the flue gas components; stripper can be operated at elevated pressure/temperature, leading to less compression work required; NH 3 is not as corrosive as amines and can be used as a multicomponent capture solvent [4].…”

Electrochemical Reduction of CO2 at Metal Electrodes in a Distillable Ionic Liquid

“…[17] This typeo fm edia overcomes the limitedp hysical solubility of CO 2 in water by chemically capturing it as ac arbamate, as discussed below.E ven thoughn umerous studies have been conducted to furthero ptimize this amine-based capturet echnology, [18] to our knowledge, no studies on the use of amine-basedm ediai ne lectro-chemicalC O 2 conversion have been reported. [17] This typeo fm edia overcomes the limitedp hysical solubility of CO 2 in water by chemically capturing it as ac arbamate, as discussed below.E ven thoughn umerous studies have been conducted to furthero ptimize this amine-based capturet echnology, [18] to our knowledge, no studies on the use of amine-basedm ediai ne lectro-chemicalC O 2 conversion have been reported.…”

Renewable absorbents for CO2 capture: from biomass to nature

“…Organic absorbents for CO 2 capture include chemical absorbents (e.g., alkanolamines, amino acid salts, ionic liquids) and physical absorbents (e.g., selexol). Of these, alkanolamines and amino acid salts can be prepared from biomass . Although CO 2 absorption performance of commercial alkanolamines and amino acid salts including the reaction thermodynamics and kinetics have extensively been reviewed, few reports on the CO 2 absorption performance of renewable alkanolamines and amino acid salts were found in the open literature.…”