Aspen Plus Simulation of CO2 Removal from Coal and Gas Fired Power Plants

Udara Sampath P.R.Arachchige, Morten Christian Melaaen
2012 Energy Procedia  
This paper presents a description of the CO 2 removal process of 500MW coal and gas fired power plants. The parameters and other operating conditions for Aspen Plus rate based model were selected to achieve 85% of CO 2 removal. The effects of absorber pressure and packing height on re-boiler duty are studied. Re-boiler duty is decreasing with the increase of packing height and absorber pressure. The effect of solvent properties on CO 2 removal efficiency is also analyzed. The removal efficiency
more » ... increases as the increase of MEA concentration and temperature. When the lean loading of MEA solvent is increased, efficiency of the removal process is decreasing. The liquid and vapour phase temperature profiles and CO 2 loading in the absorber are analyzed to understand the model behaviour.
doi:10.1016/j.egypro.2012.06.060 fatcat:o3sfpcasqvb3xl5tldby4kfabq