CO2 adsorption process simulation in ASPEN Hysys

摘要

The main objective of the paper consists to analyze the adsorption process for capturing the carbon dioxide generated from the fossil fuel power plants. For simplifying our analysis, we have considered that the stream contains only carbon dioxide and nitrogen in a mole concentration of 13/87 %. The adsorption process was simulated in the Aspen Adsorption V9 considering silica gel impregnated with amine and activated carbon. In this case, an adsorption column of 10 cm length was used according to the exhaust gases flow in order to achieve a CO2 capture efficiency of 85 %. However, the CO2 capture efficiency of 85 % was obtained only for silica gel due to its chemical properties. In the activated carbon case, the CO2 capture efficiency was 77 %. In both cases, the maximal efficiency was obtained after 10 s due to the adsorption capacity of the bed.