Advanced modelling in performance optimization for reactive separation in industrial CO2 removal

CO2 capture with potassium carbonate solutions: A state-of-the-art review

“…Ming (2008) devised a non-equilibrium rate-based model using the ENRTL model for hot PC process. Ahmadi et al (2008) developed a comprehensive model for CO 2 absorption in K 2 CO 3 with boric acid as a promoter. Their model involved the key reaction kinetics and their interactions with mass transfer.…”

Modeling and Simulation of CO2 Absorption into Promoted Aqueous Potassium Carbonate Solution in Industrial Scale Packed Column

“…When the forward reaction is pseudo first order and reverse reaction rate is constant then the reaction rate can be expressed as follows [1,11,23]: (12) In Equation (12), is second order reaction rate constant of the forward reaction and is obtained from the following correlation [24]: (13) It is industrial practice to add promoter to the carbonate-bicarbonate solution to increase the reaction rate. The reaction between several types of promoters with CO2 is given as follows.…”

“…Instead of that, CO2 is a byproduct of the ammonia industry. CO2 is a poison to the ammonia synthesis catalyst [1], therefore CO2 must be separated from the gas stream before heading to the ammonia synthesis unit.…”

“…The addition of promoter in the K2CO3 aqueous solution can increase the CO2 absorption process. Potassium carbonate solution with alkanolamine as a promoter show an effective way to improve the overall performance of solvents, especially at primary and secondary groups of alkanolamine [1,[13][14][15][16][17].…”

“…Furthermore, it is an industrial practice to use two stages column each with different diameter to meet certain hydrodynamic characteristic requirement. Most of previous models assume only one component which moves through the interface or single component absorption and use one stage column [1,[18][19][20].…”