Applicability of chemical absorption process to carbon dioxide removal andrecovery under effluent gas conditions of coal-fired power plant

Applicability of the chemical absorption process to carbon dioxide removal and recovery under effluent gas conditions equivalent to those for coal-fir ed power plants was tested. From the pilot plant test results using KS-3 absorbent at an exhaust gas fl ow rate of 450 m(3)/h, overall performance of the system was confirmed by a bout 200 hours' operation with 50 ppm coexisting SOx. Furthermore it is found, that longer operation is permitted, judging from t he experimental evidence of KS-3's corrosion properties under coal-fired co nditions compared to those at LNG-fired power plants.