CO2 capture from power plants

摘要: While the demand for reduction in CO2 emission is increasing, cost of capture processes remains a limiting factor large-scale application. Reducing system by improving process and solvent used must have priority order to apply this technology future. In paper, definition economic baseline post-combustion from 600 MWe bituminous coal-fired power plant described. The based on 30% (by weight) aqueous solution monoethanolamine (MEA). A model has been developed previously using Aspen Plus simulation programme where CO2-removal chosen be 90%. results modelling provided required input data modelling. Depending technical economical results, an parameter study absorption/desorption with MEA solutions was performed. Major reductions can realized optimizing lean loading, amine concentration, as well stripper operating pressure. minimum avoided € 33 tonne−1 found loading 0.3 mol CO2/mol MEA, 40 wt.% pressure 210 kPa. At these conditions 3.0 GJ/tonne thermal energy regeneration. This translates 22 MWh−1 increase electricity, compared 31.4 without capture.