Applicability of Chemical Absorption Process to Carbon Dioxide Removal and Recovery under Effluent Gas Conditions of Coal-Fired Power Plant

Abstract

Applicability of the chemical absorption process to carbon dioxide removal and recovery under effluent gas conditions equivalent to those for coal-fired power plants was tested.
From the pilot plant test results using KS-3 absorbent at an exhaust gas flow rate of 450m³/h, overall performance of the system was confirmed by about 200 hours' operation with 50ppm coexisting SO_x.
Furthermore it is found, that longer operation is permitted, judging from the experimental evidence of KS-3's corrosion properties under coal-fired conditions compared to those at LNG-fired power plants.