Inderscience Publishers

Modelling and simulation of reaction kinetics of carbon dioxide absorption into aqueous ammonia in a wetted wall column

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Carbon dioxide accounts for about 80% of all greenhouse gases (GHG) and thus becomes the major source responsible for global warming which is considered as the greatest environmental challenge the world is facing. The post–combustion capture is the main way to lower the emission of existing power plants and future power plants where CO2 is produced during the combustion. Solvent–based CO2 capture technology a proven technology for CO2capture. Carbon dioxide absorption process using an ammonia solution provides many advantages including higher absorption capacity, no degradation and lower regeneration energy requirement. In this paper, a mathematical model for the reaction kinetics of carbon dioxide absorption into aqueous ammonia in a wetted wall column is developed. Simulation of the mathematical model is performed and the simulated results are compared with literature data.

Keywords: carbon dioxide absorption, CO2, aqueous ammonia, wetted wall column, carbon capture, mathematical modelling, simulation, carbon emissions, power plant emissions, reaction kinetics

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