Activated cokes 1 Active coke Adsorption capacities 1 Adsorption performance 1 Adsorption properties 1 Ammonia 1 Aromatic compounds 1 Bituminous coal 1 CCS technologies 1 CO2 1 Carbon dioxide 1 Chlorine compounds 1 Coal combustion 1 Coal shell 1 Flue gases 1 Fourier transform infrared spectroscopy 1 Gas adsorption 1 Impregnation 1 Impregnation ratios 1 Nitrogen 1 Nitrogen-containing functional group 1 Physicochemical properties 1 Potassium hydroxide 1 Scanning electron microscopy 1 Solid adsorbents 1 activation 1 active coke 1 adsorption 1 nitrogen-containing functional groups 1